Online Science Resource Locator Results - Coastal and Marine Geology Program

Coastal and Marine Geology Program

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Number of results: 282

Open-File Report 2009-1225: Natural Offshore Oil Seepage and Related Tarball Accumulation on the California Coastline—Santa Barbara Channel and the Southern Santa Maria Basin; Source Identification and Inventory
Oil spillage from natural sources is very common in the waters of southern California. Active oil extraction and shipping is occurring concurrently within the region and it is of great interest to resource managers to be able to distinguish between natural seepage and anthropogenic oil spillage. The major goal of this study was to establish the geologic setting, sources, and ultimate dispersal of natural oil seeps in the offshore southern Santa Maria Basin and Santa Barbara Basins. Our surveys focused on likely areas of hydrocarbon seepage that are known to occur between Point Arguello and Ventura, California. Our approach was to 1) document the locations and geochemically fingerprint natural seep oils or tar; 2) geochemically fingerprint coastal tar residues and potential tar sources in this region, both onshore and offshore; 3) establish chemical correlations between offshore active seeps and coastal residues thus linking seep sources to oil residues; 4) measure the rate of natural seepage of individual seeps and attempt to assess regional natural oil and gas seepage rates; and 5) interpret the petroleum system history for the natural seeps.
Posted: 2010-05-21

Archive of Digital Boomer Seismic Reflection Data Collected Offshore East-Central Florida During USGS Cruise 00FGS01, July 14-22, 2000
n July of 2000, the U.S. Geological Survey (USGS), in cooperation with the Florida Geological Survey (FGS), conducted a geophysical survey of the Atlantic Ocean offshore Florida's east coast from Brevard County to northern Martin County. This report serves as an archive of unprocessed digital boomer seismic reflection data, trackline maps, navigation files, Geographic Information System (GIS) information, digital and handwritten Field Activity Collection System (FACS) logs, and Federal Geographic Data Committee (FGDC) metadata. A filtered and gained (a relative increase in signal amplitude) digital image of each seismic profile is also provided. Refer to the Acronyms page for expansions of all acronyms and abbreviations used in this report.
Posted: 2010-04-29

Archive of Digital Boomer Seismic Reflection Data Collected During USGS Field Activity 08LCA04 in Lakes Cherry, Helen, Hiawassee, Louisa, and Prevatt, Central Florida, September 2008
From September 2 through 4, 2008, the U.S. Geological Survey (USGS) and St. Johns River Water Management District (SJRWMD) conducted geophysical surveys in Lakes Cherry, Helen, Hiawassee, Louisa, and Prevatt, located in central Florida, as part of the USGS Lakes and Coastal Aquifers (LCA) study. This report serves as an archive of unprocessed digital boomer seismic reflection data, trackline maps, navigation files, Geographic Information System (GIS) files, and formal Federal Geographic Data Committee (FGDC) metadata. Filtered and gained (a relative increase in signal amplitude) digital images of the seismic profiles are also provided. Refer to the Acronyms page for expansions of acronyms and abbreviations used in this report.
Posted: 2010-04-28

ATM Coastal Topography–Florida 2001: Eastern Panhandle
This DVD contains Lidar-derived first surface (FS) topography GIS datasets of the eastern Florida panhandle coastline, from Shell Island to Mashes Island. These datasets were acquired October 2, 2001.
Posted: 2010-04-21

ATM Coastal Topography–Florida 2001: Western Panhandle
This DVD contains Lidar-derived first surface (FS) topography GIS datasets of the western Florida panhandle coastline, from Perdido Key to Lower Grand Lagoon. These datasets were acquired October 2-4 and 7-10, 2001.
Posted: 2010-04-21

Open-FIle Report 2009-1289: Bathymetry and Acoustic Backscatter: Northern Santa Barbara Channel, Southern California
In the summer of 2008, as part of the California Seafloor Mapping Program the U.S. Geological Survey, Coastal and Marine Geology mapped a nearshore region of the northern Santa Barbara Channel in Southern California.
Posted: 2010-04-11

EAARL Coastal Topography–Assateague Island National Seashore, 2008: First Surface
This DVD contains lidar-derived first-surface (FS) topography GIS datasets of the Assateague Island National Seashore in Maryland and Virginia. These datasets were acquired March 24-25, 2008.
Posted: 2010-03-05

EAARL Coastal Topography–Assateague Island National Seashore, 2008: Bare Earth
This DVD contains lidar-derived bare-earth (BE) topography GIS datasets of the Assateague Island National Seashore in Maryland and Virginia. These datasets were acquired March 24-25, 2008.
Posted: 2010-03-05

EAARL Coastal Topography–Western Florida, Post-Hurricane Charley, 2004: First Surface
This DVD contains lidar-derived first-surface (FS) topography GIS datasets of a portion of the western Florida coastline beachface, acquired post-Hurricane Charley on August 16 and 18, 2004.
Posted: 2010-03-05

ATM Coastal Topography–Texas, 2001: UTM Zone 14
This DVD contains lidar-derived first-surface (FS) topography GIS datasets of a portion of the Texas coastline, within Universal Transverse Mercator (UTM) zone 14, from Mustang Island to Matagorda Peninsula. These datasets were acquired October 12-13, 2001.
Posted: 2010-03-05

ATM Coastal Topography–Texas, 2001: UTM Zone 15
This DVD contains lidar-derived first-surface (FS) topography GIS datasets of a portion of the Texas coastline within Universal Transverse Mercator (UTM) zone 15, from Matagorda Peninsula to Galveston Island. These datasets were acquired October 12-13, 2001.
Posted: 2010-03-05

LIDAR Illustration Home Purpose Link Metadata Link Collaborators Link Acronyms Link EAARL Coastal Topography and Imagery–Naval Live Oaks Area, Gulf Islands National Seashore, Florida, 2007
This DVD contains color-infrared (CIR) imagery, lidar-derived bare-earth (BE) and first-surface (FS) topography, and canopy height (CH) GIS datasets of the Naval Live Oaks Area in Florida's Gulf Islands National Seashore. These datasets were acquired June 30, 2007.
Posted: 2010-03-05

LIDAR Illustration Home Purpose Metadata Collaborators Acronyms EAARL Coastal Topography–Western Florida, Post-Hurricane Charley, 2004: Seamless (Bare Earth and Submerged)
This DVD contains lidar-derived seamless (bare-earth and submerged) topography GIS datasets of a portion of the western Florida coastline beachface, acquired post-Hurricane Charley on August 17 and 18, 2004.
Posted: 2010-03-05

ATM Coastal Topography–Mississippi, 2001
This DVD contains lidar-derived first-surface (FS) topography GIS datasets of the Mississippi coastline, from Lakeshore to Petit Bois Island. These datasets were acquired September 9-10, 2001.
Posted: 2010-03-05

ATM Coastal Topography–Louisiana, 2001: UTM Zone 15 (Part 1 of 2)
This DVD contains lidar-derived first-surface (FS) topography GIS datasets of a portion of the Louisiana coastline beach face within Universal Transverse Mercator (UTM) Zone 15, from Isles Dernieres to Grand Isle. These datasets were acquired September 7 and 10, 2001.
Posted: 2010-03-05

ATM Coastal Topography–Louisiana, 2001: UTM Zone 16 (Part 2 of 2)
This DVD contains lidar-derived first-surface (FS) topography GIS datasets of a portion of the Louisiana coastline beach face within Universal Transverse Mercator (UTM) Zone 16, from Grand Isle to the Chandeleur Islands. These datasets were acquired September 7 and 9, 2001.
Posted: 2010-03-05

ATM Coastal Topography–Alabama 2001
This DVD contains Lidar-derived first surface (FS) topography GIS datasets of the Alabama coastline. These datasets were acquired October 3-4, 2001.
Posted: 2010-03-04

EAARL Coastal Topography–Pearl River Delta 2008: First Surface
This DVD contains Lidar-derived first surface (FS) topography GIS datasets of the Pearl River Delta in Louisiana and Mississippi, acquired March 9-11, 2008.
Posted: 2010-03-03

California Seafloor Mapping Program
The California Seafloor Mapping Program (CSMP) is a cooperative program to create a comprehensive coastal/marine geologic and habitat base map series for all of California’s State waters. The Ocean Protection Council authorized funds to establish the CSMP in 2007 (OPC, 2007) and assembled a team of experts from state and federal agencies, academia, and private industry to develop the best approach to mapping and classifying estuarine and marine geologic habitats, while at the same time updating all nautical charts. Initiated in 2008, the CSMP is collecting bathymetry (underwater topography) and backscatter data (providing insight into the geologic makeup of the seafloor) that will be turned into habitat and geologic base maps for all of California’s state waters (mean high water line out to three nautical miles). Although the CSMP was originally developed to support the design and monitoring of marine reserves through the Marine Life Protection Act (CDFG, 2007), accurate statewide mapping of the seafloor will:
- improve climate change and ocean circulation models;
- help evaluate the potential for ocean energy;
- improve our understanding of ecosystem dynamics;
- identify submerged faults and improve our understanding of tsunami potential
- enable more effective regulation of offshore development;
- improve maritime safety; and
- improve our understanding of sediment transport and sand delivery.
Posted: 2010-02-23

Data Series 487: A Seamless, High-Resolution, Coastal Digital Elevation Model (DEM) for Southern California
A seamless, 3-meter digital elevation model (DEM) was constructed for the entire Southern California coastal zone, extending 473 km from Point Conception to the Mexican border. The goal was to integrate the most recent, high-resolution datasets available (for example, Light Detection and Ranging (Lidar) topography, multibeam and single beam sonar bathymetry, and Interferometric Synthetic Aperture Radar (IfSAR) topography) into a continuous surface from at least the 20-m isobath to the 20-m elevation contour. This dataset was produced to provide critical boundary conditions (bathymetry and topography) for a modeling effort designed to predict the impacts of severe winter storms on the Southern California coast (Barnard and others, 2009). The hazards model, run in real-time or with prescribed scenarios, incorporates atmospheric information (wind and pressure fields) with a suite of state-of-the-art physical process models (tide, surge, and wave) to enable detailed prediction of water levels, run-up, wave heights, and currents. Research-grade predictions of coastal flooding, inundation, erosion, and cliff failure are also included. The DEM was constructed to define the general shape of nearshore, beach and cliff surfaces as accurately as possible, with less emphasis on the detailed variations in elevation inland of the coast and on bathymetry inside harbors. As a result this DEM should not be used for navigation purposes.
Posted: 2010-02-11

Holocene Core Logs and Site Statistics for Modern Patch-Reef Cores: Biscayne National Park, Florida
The objectives of this study were to sample living corals to understand the more recent (<200 years) changes in climate and environmental conditions of the area and to investigate the Holocene (in this case, <8,000 years in the Florida Keys) depositional history at progressively deeper patch-reef sites. This report provides statistics for the cores and core sites and a basic lithologic description of these Holocene cores.
Posted: 2009-12-08

EAARL Topography - Vicksburg National Military Park 2008: Bare Earth
This DVD contains Lidar-derived bare earth (BE) topography GIS datasets of the Vicksburg National Military Park in Mississipi. These datasets were acquired on March 6, 2008.
Posted: 2009-12-01

Digital Data Series 55: Sea-Floor Images and Data from Multibeam Surveys in San Francisco Bay, Southern California, Hawaii, the Gulf of Mexico, and Lake Tahoe, California-Nevada
Accurate base maps are a prerequisite for any geological study, regardless of the objectives. Land-based studies commonly utilize aerial photographs, USGS 7.5-minute quadrangle maps, and satellite images as base maps. Until now, studies that involve the ocean floor have been at a disadvantage due to an almost complete lack of accurate marine base maps. Many base maps of the sea floor have been constructed over the past century but with a wide range in navigational and depth accuracies. Only in the past few years has marine surveying technology advanced far enough to produce navigational accuracy of 1 meter and depth resolutions of 50 centimeters. The Pacific Seafloor Mapping Project, U.S. Geological Survey, Western Coastal and Marine Geology Program, Menlo Park, California, U.S.A. in cooperation with the Ocean Mapping Group, University of New Brunswick, Canada is using this new technology to systematically map the ocean floor and lakes. This type of marine surveying, called Multibeam surveying, collects high-resolution bathymetry and backscatter data that can be used for a variety of basemaps, GIS coverages, and scientific visualization methods. This is an interactive CD-ROM that contains images, movies, and data of all the surveys the Pacific Seafloor Mapping Project has completed up to January 1999. Images and movies on this CD-ROM, such as shaded relief of the bathymetry, backscatter, oblique views, 3-D views, and Quicktime movies (San Francisco, Los Angeles, and Lake Tahoe) help the viewer to visualize the multibeam data. This CD-ROM also contains ARC/INFO export (.e00) files and full resolution TIFF images of all the survey sites that can be downloaded and used in many GIS software.
Posted: 2009-11-24

Open-File Report 2005-1153: Multibeam Bathymetry and Backscatter Data: Northeastern Channel Islands Region, Southern California
The U.S. Geological Survey (USGS) in cooperation with the Minerals Management Service (MMS) conducted multibeam mapping in the eastern Santa Barbara Channel and northeastern Channel Islands region from August 8 to15, 2004 aboard the R/V Maurice Ewing. The survey was directed and funded by the Minerals Management Service, which is interested in maps of hardbottom habitats, particularly natural outcrops, that support reef communities in areas affected by oil and gas activity. The maps are also useful to biologists studying fish that use the platforms and the sea floor beneath them as habitat. The survey collected bathymetry and corrected, co-registered acoustic backscatter using a Kongsberg Simrad EM1002 multibeam echosounder that was mounted on the hull of the R/V Maurice Ewing. Three main regions were mapped during the survey including: (1) the Eastern Santa Barbara Channel adjacent to an area previously mapped with multibeam-sonar by the Monterey Bay Aquarium Research Institute (see the MBARI Santa Barbara Basin Multibeam Survey web page at http://www.mbari.org/data/mapping/SBBasin/), (2) the Footprint area south of Anacapa Island, which has been studied extensively by rockfish biologists and is considered a good site for a marine protected area, and (3) part of the submarine canyons along the continental slope south of Port Hueneme. These data will be used to support a number of new and ongoing projects including, habitat mapping, shelf and slope processes, and offshore hazards and resouces. For more information on the mapping mission see "Mapping Benthic Habitat Around Oil Platforms in the Santa Barbara Channel, California" at http://soundwaves.usgs.gov/2004/11/fieldwork3.html This Open-File Report publishes the multibeam bathymetry and acoustic backscatter data in a number of different formats, with Federal Geographic Data Committee (FGDC) metadata, along with maps and oblique views of particular areas of interest.
Posted: 2009-11-24

Data Series 470: Terrestrial Lidar Datasets of New Orleans, Louisiana, Levee Failures from Hurricane Katrina, August 29, 2005
Hurricane Katrina made landfall with the northern Gulf Coast on August 29, 2005, as one of the strongest hurricanes on record. The storm damage incurred in Louisiana included a number of levee failures that led to the inundation of approximately 85 percent of the metropolitan New Orleans area. Whereas extreme levels of storm damage were expected from such an event, the catastrophic failure of the New Orleans levees prompted a quick mobilization of engineering experts to assess why and how particular levees failed. As part of this mobilization, civil engineering members of the United States Geological Survey (USGS) performed terrestrial lidar topographic surveys at major levee failures in the New Orleans area. The focus of the terrestrial lidar effort was to obtain precise measurements of the ground surface to map soil displacements at each levee site, the nonuniformity of levee height freeboard, depth of erosion where scour occurred, and distress in structures at incipient failure. In total, we investigated eight sites in the New Orleans region, including both earth and concrete floodwall levee breaks. The datasets extend from the 17th Street Canal in the Orleans East Bank area to the intersection of the Gulf Intracoastal Waterway (GIWW) with the Mississippi River Gulf Outlet (MRGO) in the New Orleans East area. The lidar scan data consists of electronic files containing millions of surveyed points. These points characterize the topography of each levee’s postfailure or incipient condition and are available for download through online hyperlinks. The data serve as a permanent archive of the catastrophic damage of Hurricane Katrina on the levee systems of New Orleans. Complete details of the data collection, processing, and georeferencing methodologies are provided in this report to assist in the visualization and analysis of the data by future users.
Posted: 2009-11-03

EAARL Topography - Vicksburg National Military Park 2007: First Surface
This DVD contains Lidar-derived first surface (FS) topography GIS datasets of the Vicksburg National Military Park in Mississipi. These datasets were acquired on September 12, 2007.
Posted: 2009-11-01

WCMG Marine Facility Home Page
Links to software downloads and documentation for YoNav and MudSeis systems used on Western Region Coastal and Marine Geology Team cruises.
Posted: 2009-07-02

Tsunami and Earthquake Research at the USGS
General information on how earthquakes generate tsunamis and summaries of tsunami research.
Posted: 2009-06-10

USGS Northern Gulf of Mexico (NGOM)
The goal of the USGS Northern Gulf of Mexico project is to understand the evolution of coastal ecosystems on the Northern Gulf Coast, the impact of human activities on these ecosystems, and the vulnerability of ecosystems and human communities to more frequent and more intense hurricanes in the future.
Posted: 2009-05-28

National Seafloor Mapping and Characterization
Images of the sea floor off the coasts of California, Hawaii, Florida, Mississippi, Alabama, Texas, Louisiana, and Washington; images of lake floor of Lake Michigan, Crater Lake, Lake Tahoe. Backscatter and swath bathymetry, regular and in 3-D view.
Posted: 2009-05-11

Coastal Change Along the Shore of Northeastern South Carolina: The South Carolina Coastal Erosion Study
The U.S. Geological Survey, in cooperation with the South Carolina Sea Grant Consortium, conducted a 7-year, multi-disciplinary study of coastal erosion in northeastern South Carolina. The main objective was to understand the geologic and oceanographic processes that control sediment movement along the region's shoreline and thereby improve projections of coastal change. The study used high-resolution remote sensing and sampling techniques to define the geologic framework and assess historic shoreline change. Based on these findings, oceanographic-process studies and numerical modeling were carried out to determine the rates and directions of sediment transport along South Carolina's Grand Strand.
Posted: 2009-05-01

Coastal Change Hazards: Hurricanes and Extreme Storms
This project investigates the coastal impacts of hurricanes and extreme storms, such as Hurricanes Isabel (2003), Dennis (1999), Bonnie & Georges (1998), and winter storms, such as those associated with the 1997-98 El Niño.
Posted: 2009-04-28

Hurricane Ike: Observations and Analysis of Coastal Change
Understanding storm-induced coastal change and forecasting these changes require knowledge of the physical processes associated with the storm and the geomorphology of the impacted coastline. The primary physical processes of interest are the wind field, storm surge, and wave climate. Not only does wind cause direct damage to structures along the coast, but it is ultimately responsible for much of the energy that is transferred to the ocean and expressed as storm surge, mean currents, and large waves. Waves and currents are the processes most responsible for moving sediments in the coastal zone during extreme storm events. Storm surge, the rise in water level due to the wind, barometric pressure, and other factors, allows both waves and currents to attack parts of the coast not normally exposed to those processes.
Posted: 2009-04-07

Open-File Report 2009-1029: Coastal processes study of Santa Barbara and Ventura Counties, California
By Patrick L. Barnard, David L. Revell, Dan Hoover, Jon Warrick, John Brocatus, Amy E. Draut, Pete Dartnell, Edwin Elias, Neomi Mustain, Pat E. Hart, and Holly F. Ryan. The Santa Barbara littoral cell (SBLC) is a complex coastal system with significant management challenges. The coastline ranges broadly in exposure to wave energy, fluvial inputs, hard structures, and urbanization. Geologic influence (structural control) on coastline orientation exerts an important control on local beach behavior, with anthropogenic alterations and the episodic nature of sediment supply and transport also playing important roles.
Posted: 2009-03-27

Archive of Digital Boomer Seismic Reflection Data Collected During USGS Field Activity 08LCA01 in 10 Central Florida Lakes, March 2008
In March of 2008, the U.S. Geological Survey and St. Johns River Water Management District (SJRWMD) conducted geophysical surveys in Lakes Avalon, Big, Colby, Helen, Johns, Prevatt, Searcy, Saunders, Three Island, and Trout, located in central Florida, as part of the USGS Lakes and Coastal Aquifers (LCA) study. This report serves as an archive of unprocessed digital boomer seismic reflection data, trackline maps, navigation files, Field Activity Collection System (FACS) logs, Geographic Information System (GIS) files, and formal Federal Geographic Data Committee (FGDC) metadata. Filtered and gained (a relative increase in signal amplitude) digital images of the seismic profiles are also provided. Refer to the Acronyms page for expansions of acronyms and abbreviations used in this report.
Posted: 2009-03-26

Archive of Digital Boomer and CHIRP Seismic Reflection Data Collected During USGS Field Activity 08LCA03 in Lake Panasoffkee, Florida, May 2008
In May of 2008, the U.S. Geological Survey (USGS) conducted geophysical surveys in Lake Panasoffkee, located in central Florida, as part of the USGS Lakes and Coastal Aquifers (LCA) study. This report serves as an archive of unprocessed digital boomer and Compressed High Intensity Radar Pulse (CHIRP)* seismic reflection data, trackline maps, navigation files, Field Activity Collection System (FACS) logs, Geographic Information System (GIS) files, and formal Federal Geographic Data Committee (FGDC) metadata. Filtered and gained (a relative increase in signal amplitude) digital images of the seismic profiles and geospatially corrected interactive profiles are also provided. Refer to the Acronyms page for expansions of acronyms and abbreviations used in this report.
Posted: 2009-03-26

Digital Data Series 72: 2000 Multibeam sonar survey of Crater Lake, Oregon - Data, GIS, images, and movies
In the summer of 2000, the bottom of Crater Lake, Oregon was mapped. The effort was a cooperative effort between the U.S. Geological Survey's Pacific Seafloor Mapping Project, the National Park Service, and the Center for Coastal and Ocean Mapping at the University of New Hampshire. The team used a state-of-the-art multibeam sonar system to collect high-resolution bathymetry and calibrated, co-registered acoustic backscatter to support both biological and geological research in the area (aquatic biology, geochemistry, volcanic processes, etc). This survey collected over 16 million soundings and the resulting data portrays the bottom of Crater Lake at a spatial resolution of 2 meters. This CD-ROM is published for the scientific community, the general public, and as a teaching tool. The CD-ROM contains the raw multibeam bathymetry and backscatter data as well as an ArcExplorer 2.0 project for the scientific community to use in research. Computer-generated images and a fly-by movie allow any user to visualize the lake floor. Photographs and a QuickTime® movie of the helicopter operations shows how the multibeam survey took place and a list of Crater Lake publications and related websites can be used for further Crater Lake research and general interest.
Posted: 2009-03-10

EAARL Coastal Topography–Northeast Barrier Islands 2007: Bare Earth
This DVD contains Lidar-derived bare earth (BE) topography GIS datasets of a portion of the northeast coastal barrier islands in New York and New Jersey. These datasets were acquired April 29-30 and May 15-16, 2007.
Posted: 2009-03-01

EAARL Coastal Topography - Northeast Barrier Islands 2007: First Surface
This DVD contains Lidar-derived first surface (FS) topography GIS datasets of a portion of the northeast coastal barrier islands in New York and New Jersey. These datasets were acquired April 29-30 and May 15-16, 2007.
Posted: 2009-03-01

EAARL Topography-Colonial National Historical Park
These Lidar-derived topography maps were produced as a collaborative effort between the U.S. Geological Survey (USGS) Coastal and Marine Geology Program, Florida Integrated Science Center (FISC) St. Petersburg, the National Park Service (NPS) Inventory and Monitoring Program, Northeast Coastal and Barrier Network, and the National Aeronautics and Space Administration (NASA), Wallops Flight Facility. One objective of this research is to create techniques to survey coral reefs, barrier islands, and various nearshore coastal environments for the purposes of geomorphic change studies, habitat mapping, ecological monitoring, change detection, and event assessment. As part of this project, data from an innovative instrument under development at the NASA Wallops Flight Facility, the NASA Experimental Airborne Advanced Research Lidar (EAARL) are being used. This sensor has the potential to make significant contributions in this realm for measuring subaerial and submarine topography wthin cross-environment surveys. High spectral resolution, water-column correction, and low costs were found to be key factors in providing accurate and affordable imagery to coastal resource managers.
Posted: 2009-01-01

ARCHIVE OF DIGITAL BOOMER AND CHIRP SEISMIC REFLECTION DATA COLLECTED DURING USGS CRUISES 01RCE05 AND 02RCE01 IN THE LOWER ATCHAFALAYA RIVER, MISSISSIPPI RIVER DELTA, AND OFFSHORE SOUTHEASTERN LOUISIANA, OCTOBER 23-30, 2001, AND AUGUST 18-19, 2002
n October of 2001 and August of 2002, the U.S. Geological Survey conducted geophysical surveys of the Lower Atchafalaya River, the Mississippi River Delta, Barataria Bay, and the Gulf of Mexico south of East Timbalier Island, Louisiana. This report serves as an archive of unprocessed digital marine seismic reflection data, trackline maps, navigation files, observers' logbooks, GIS information, and formal FGDC metadata. In addition, a filtered and gained GIF image of each seismic profile is provided. Refer to the Acronyms page for expansion of acronyms and abbreviations used in this report.
Posted: 2008-12-01

EAARL Submerged Topography–U.S. Virgin Islands 2003
This DVD contains Lidar-derived submerged topography GIS datasets of a portion of the U.S. Virgin Islands. These datasets were acquired on April 21, 23, and 30, May 2, and June 14 and 17, 2003.
Posted: 2008-12-01

EAARL Topography - Jean Lafitte National Historical Park and Preserve 2006
This DVD contains Lidar-derived first surface (FS) and bare earth (BE) topography GIS datasets of Jean Lafitte National Historical Park and Preserve in Louisiana. These datasets were acquired on September 22, 2006.
Posted: 2008-12-01

EAARL Topography - Natchez Trace Parkway 2007: First Surface
This DVD contains Lidar-derived first surface (FS) topography GIS datasets of a portion of the Natchez Trace Parkway in Mississipi. These datasets were acquired on September 14, 2007.
Posted: 2008-12-01

EAARL Coastal Topography–Fire Island National Seashore 2007
This DVD contains Lidar-derived first surface (FS) and bare earth (BE) topography GIS datasets of Fire Island National Seashore in New York. These datasets were acquired on April 29-30 and May 15-16, 2007.
Posted: 2008-12-01

EAARL Coastal Topography–Sandy Hook 2007
This DVD contains Lidar-derived bare earth (BE) and first surface (FS) topography GIS datasets of the Gateway National Recreation Area's Sandy Hook Unit in New Jersey. These datasets were acquired on May 16, 2007.
Posted: 2008-12-01

Archive of Digitized Analog Boomer Seismic Reflection Data Collected from Lake Pontchartrain, Louisiana, to Mobile Bay, Alabama, During Cruises Onboard the R/V ERDA-1, June and August 1992
In June and August of 1992, the U.S. Geological Survey (USGS) conducted geophysical surveys to investigate the shallow geologic framework from Lake Pontchartrain, Louisiana, to Mobile Bay, Alabama. This work was conducted onboard the Argonne National Laboratory’s R/V ERDA-1 as part of the Mississippi/Alabama Pollution Project. This report is part of a series to digitally archive the legacy analog data collected from the Mississippi-Alabama SHelf (MASH). The MASH data rescue project is a cooperative effort by the USGS and the Minerals Management Service (MMS).
Posted: 2008-12-01

USGS Data Series 265, Time-Series Photographs of the Sea Floor in Western Massachusetts Bay, Version 2, 1989 - 1996, USGS Data Series 265, Title Page
This U.S. Geological Survey Data Series report presents time-series photographs of the sea floor obtained from an instrumented tripod deployed in western Massachusetts Bay (site LT-A, 42? 22.6' N., 70? 47.0' W., 32 m water depth) from December 1989 to October 1996. The photographs provide time-series observations of changes of the sea floor, near-bottom water turbidity, and life on the sea floor. The photographs, obtained every 4 or every 6 hours, are presented as individual photographs (in .png format) and as a movie (in .avi format).
Posted: 2008-11-17

USGS Data Series 266, Time-series photographs of the sea floor in western Massachusetts Bay, 1996 - 2005 Title Page
This U.S. Geological Survey Data Series report presents time-series photographs of the sea floor obtained from an instrumented tripod deployed in western Massachusetts Bay (site LT-A, 42? 22.6' N., 70? 47.0' W., 32 m water depth) from December 1989 to October 1996. The photographs provide time-series observations of changes of the sea floor, near-bottom water turbidity, and life on the sea floor. The photographs, obtained every 4 or every 6 hours, are presented as individual photographs (in .png format) and as a movie (in .avi format).
Posted: 2008-11-17

USGS Open-File Report 2004-1358
The northern Gulf of Mexico contains many documented gas hydrate deposits near the sea floor. Although gas hydrate often is present in shallow subbottom sediment, the extent of hydrate occurrence deeper than 10 meters below sea floor in basins away from vents and other surface expressions is unknown. We obtained giant piston cores, box cores, and gravity cores and performed heat-flow analyses to study these shallow gas hydrate deposits aboard the RV Marion Dufresne in July 2002. This report presents measurements and interpretations from that cruise. Our results confirm the presence of gas hydrate in vent-related sediments near the sea bed. The presence of gas hydrate near the vents is governed by the complex interaction of regional and local factors, including heat flow, fluid flow, faults, pore-water salinity, gas concentrations, and sediment properties. However, conditions appropriate for extensive gas hydrate formation were not found away from the vents.
Posted: 2008-11-17

Index for Open file report 2006 1169
This USGS Open-File report presents continual resistiviy profiling data collected along the Cape Cod National Seashore. This report also contains a description of the processing techniques used with these data. Groundwater samples data and core data are also included in this report.
Posted: 2008-11-17

USGS OFR 2007-1366: Sidescan-Sonar Imagery and Surficial Geologic Interpretations of the Sea Floor in Central Rhode Island Sound, Title Page
Sidescan-sonar imagery, bathymetry, and surficial geologic interpretations of the sea floor in Rhode Island Sound, Rhode Island.
Posted: 2008-11-17

USGS OFR 2008-1174: Enhanced Sidescan-Sonar Imagery, North-Central Long Island Sound, Title Page
Sidescan-sonar imagery from NOAA surveys H11043, H11044, and H11045 in north-central Long Island Sound were enhanced to remove tonal artifacts by matching backscatter tones in adjacent sonar lines. The enhanced imagery minimizes abrupt backscatter changes and striping, and more clearly delineates boundaries of backscatter tones and patterns."
Posted: 2008-11-17

Documentation of the U.S. Geological Survey Oceanographic Time-Series Measurement Database, USGS Open-File Report 2007-1194, Title Page
Observations of ocean current and hydrographic measurements primarily from the coastal United States are provided in this database. Data is available in the raw sample interval logged by the instrument, and optionally as hourly averaged, and low-pass filtered files. Data served may include measurements of currents, light transmission (beam attenuation), temperature, conductivity, density, oxygen, salinity, and other parameters. Time range: 1975 - present"
Posted: 2008-11-17

USGS OFR 2008-1004: Sea-Floor Character and Sedimentary Processes in the Vicinity of Woods Hole, Massachusetts, Title Page
Sea-floor geology and surface processes of Woods Hole based on sidescan sonar, multibeam bathymetry, bottom photography, and sediment samples."
Posted: 2008-11-17

USGS OFR 2007-1017: Historical Shoreline Changes at Rincón, Puerto Rico, 1936-2006, Title Page
The coast from Punta Higüero to Punta Cadena in Rincón, Puerto Rico is experiencing long-term erosion. This study documents historical shoreline changes at Rincón for the period 1936-2006 and constitutes a significant expansion and revision of previous work. The study area extends approximately 8 km from Punta Higüero to Punta Cadena. Fourteen historical shoreline positions were compiled from existing data, new orthophotography, and Global Positioning System (GPS) field surveys.
Posted: 2008-11-17

EAARL Topography - Thomas Stone National Historic Site
This Web site contains Lidar-derived topography (first return and bare earth) maps and GIS files for Thomas Stone National Historic Site in Maryland.
Posted: 2008-11-01

Bathymetric Survey of the Nearshore from Belle Pass to Caminada Pass, Louisiana: Methods and Data Report
"Bathymetric Survey of the Nearshore from Belle Pass to Caminada Pass, Louisiana: Methods and Data Report" is a 27-page, full-color report of a high-resolution, single-beam bathymetric survey along the Louisiana southern coastal zone from Belle Pass to Caminada Pass.
Posted: 2008-11-01

Archive of Digital CHIRP Seismic Reflection Data Collected During USGS Cruise 06SCC01 Offshore of Isles Dernieres, Louisiana, June 2006
In June of 2006, the U.S. Geological Survey conducted a geophysical survey offshore of Isles Dernieres, Louisiana, as part of the USGS Barrier Island Coastal Monitoring project, which is part of a broader study focused on Subsidence and Coastal Change (SCC).
Posted: 2008-11-01

GIS Compilation, Data Collected, Pulley Ridge Deep Coral Reef Region, USGS OF 2005-1089, Title Page
GIS compilation of data from the southern portion of Pulley Ridge on the Florida Platform.
Posted: 2008-10-11

Open-File Report 2007-1112, Updated: The National Assessment of Shoreline Change: A GIS Compilation of Vector Cliff Edges and Associated Cliff Erosion Data for the California Coast
USGS report titled, A GIS Compilation of Vector Shorelines and Associated Shoreline Change Data for the Sandy Shorelines of the California Coast; this report contains links to data coverage --GIS-- of shoreline change of sandy shorelines of the California Coast. Version 1.1. The data files in this version have been updated to correct for a projection error. All files and metadata now accurately reference the NAD83 datum.
Posted: 2008-09-16

Scientific Investigations Report 2008-5128: Submarine ground-water discharge and fate along the coast of Kaloko-Honokohau National Historical Park, Island of Hawai'i--Part 2
Submarine ground-water discharge and fate along the coast of Kaloko-Honokohau National Historical Park, Island of Hawai'i--Part 2, Spatial and temporal variations in salinity, radium-isotope activity, and nutrient concentrations in coastal waters, December 2003-April 2006
Posted: 2008-08-29

Archive of Boomer Seismic Reflection Data Collected during USGS Cruise 99LCA01, Crescent Beach Spring, Florida, 26 April - 27 April, 1999
This Open-File Report serves as an archive of field seismic data, associated navigation files, trackline maps, scanned logbooks, and formal seismic metadata, for boomer data collected on USGS Cruise 99LCA01.
Posted: 2008-08-28

ARCHIVE OF BOOMER SEISMIC REFLECTION DATA COLLECTED DURING USGS FIELD ACTIVITIES 01ASR01, 01ASR02, 02ASR01, AND 02ASR02, MIAMI, FLORIDA, NOVEMBER 2001 - JANUARY 2002
Presented on this web archive are processed seismic profiles, associated navigation files, trackline maps, logbooks, and formal metadata for boomer data collected on USGS Field Activities 01ASR01, 01ASR02, 02ASR01, and 02ASR02.
Posted: 2008-08-28

ARCHIVE OF BOOMER SEISMIC REFLECTION DATA COLLECTED DURING USGS CRUISE 96CCT01, NEARSHORE SOUTH CENTRAL SOUTH CAROLINA COAST, JUNE 26 - JULY 1, 1996
This archive presents unprocessed SEG-Y data files, processed seismic profiles, associated navigation files, trackline maps, logbooks, and formal metadata for boomer data collected on USGS Cruise 96CCT01.
Posted: 2008-08-28

Archive of Boomer Seismic Reflection Data Collected During USGS Cruises 00SCC02 and 00SCC04, Barataria Basin, Louisiana, May 12 - 31 and June 17 - July 2, 2000
This archive presents processed seismic profiles, associated navigation files, trackline maps, logbooks, and formal metadata for boomer data collected on USGS Cruises 00SCC02 and 00SCC04
Posted: 2008-08-28

Archive of Boomer Seismic Reflection Data - U.S. Geological Survey Open-File Report 01-165
This Open-File Report serves as an archive of field seismic data, associated navigation files, trackline map, scanned logbooks, and formal metadata, for boomer data collected on USGS Cruise 99ASR01. These data were recorded aboard the R/V G. K. Gilbert in Lake Okeechobee, Fla., on 29 June - 30 June, 1999.
Posted: 2008-08-28

ARCHIVE OF CHIRP SEISMIC REFLECTION DATA COLLECTED DURING USGS CRUISES 00SCC02 AND 00SCC04, BARATARIA BASIN, LOUISIANA, MAY 12 - 31 AND JUNE 17 - JULY 2, 2000
00SCC02 AREA A - ARCHIVE OF CHIRP SEISMIC REFLECTION DATA COLLECTED DURING USGS CRUISES 00SCC02 AND 00SCC04, BARATARIA BASIN, LOUISIANA, MAY 12 - 31 AND JUNE 17 - JULY 2, 2000
Posted: 2008-08-28

Open-File Report 2008-1327 - Interferometric Sidescan Bathymetry, Sediment and Foraminiferal Analyses; a New Look at Tomales Bay, California
U.S.G.S. Open-File Report 2008-1327 entitled, Interferometric Sidescan Bathymetry, Sediment and Foraminiferal Analyses; a New Look at Tomales Bay, California. The United States Geological Survey (USGS) in collaboration with Point Reyes National Sea Shore (PRNS), and the Tomales Bay Watershed Council [http://www.tomalesbaywatershed.org/] has completed a detailed bathymetric survey, and sediment and foraminiferal analyses of the floor of Tomales Bay, California. The study goals are to detail the submarine morphology, the sediment distribution, sedimentary features, and distribution of foraminifera to provide a framework for future studies. The USGS collected swath bathymetric data with a SEA SWATHplus interferometric sidescan sonar system (2004, 2005) and an echo sounder system (2006). The data were processed into continuous mosaic images that show bathymetric detail of the bay floor with 0.2-m vertical and 4.0–m horizontal resolution. Acoustic backscatter data from the 2004 and 2005 surveys were processed into 2-m resolution grids. In addition, 27 sediment samples were collected from various parts of the bay for grain size analyses and a comprehensive study of the distribution of foraminifera in Tomales Bay. The foraminiferal analysis determined that the invasive foraminifera Trochammina hadai from Japan was present in Tomales Bay. The project was conducted in response to a request from the National Park Service, and the Tomales Bay Watershed Council who voiced a need to look at the environmental impacts of human input to the surrounding watersheds that ultimately flow into the bay. The mapping, sediment, and foraminiferal data establish a baseline survey for future comparisons of possible geologic and anthropogenic changes that might occur due to changes in land use or development in the surrounding watershed. These data may also aid in determining the possible pathways of pollutants entering the bay from the surrounding watersheds.
Posted: 2008-07-31

Open-File Report 2008-1246: High-Resolution Chirp and Mini-Sparker Seismic-Reflection Data From the Southern California Continental Shelf—Gaviota to Mugu Canyon
The U.S. Geological Survey (USGS) collected high-resolution shallow seismic-reflection data in September, 2007, and June-July, 2008, from the continental shelf offshore of southern California between Gaviota and Mugu Canyon, in support of the California's State Waters Mapping Program. Data were acquired using SIG 2mille mini-sparker and Edgetech chirp 512 instruments aboard the R/V Zephyr (Sept. 2007) and R/V Parke Snavely (June-July 2008). The survey area spanned approximately 120 km of coastline, and included shore-perpendicular transects spaced 1.0-1.5 km apart that extended offshore to at least the 3-mile limit of State waters, in water depths ranging from 10 m near shore to 300 m near the offshore extent of Mugu and Hueneme submarine canyons. Subbottom acoustic penetration spanned tens to several hundred meters, variable by location. This report includes maps of the surveyed transects, linked to Google Earth™ software, as well as digital data files showing images of each transect in SEG-Y, JPEG, and TIFF formats. The images of sediment deposits, tectonic structure, and natural-gas seeps collected during this study provide geologic information that is essential to coastal zone and resource management at Federal, State and local levels, as well as to future research on the sedimentary, tectonic, and climatic record of southern California.
Posted: 2008-07-29

Decision Support for Coastal Science and Management
The Decision Support for Coastal Science and Management project, sponsored by the USGS Coastal and Marine Geology Program (CMGP) is supporting the creation of new capabilities for the synoptic remote sensing of coastal-marine and terrestrial environments based on aircraft and satellite sensors. These coastal remote-sensing, mapping, and point-monitoring tools constitute a unique integrated package of instrumentation and software that may be deployed in support of appropriately timed and scaled zoning decisions by management authorities in order to conserve and sensibly exploit nearshore coastal and marine ecosystems.
Posted: 2008-07-15

Data Series 288: Beach Morphology Monitoring in the Elwha River Littoral Cell, 2004-2006
his report describes the methods used, data collected, and results of the Beach Morphology Monitoring Program in the Elwha River Littoral Cell, starting in 2004. The U.S. Geological Survey and the Washington State Department of Ecology collaborated in the data collection with the support of the local Lower Elwha Klallam Tribe. Beach monitoring efforts consisted of collecting topographic and bathymetric horizontal and vertical position data by using a Real Time Kinematic Differential Global Positioning System (RTK-DGPS). The monitoring program was designed to characterize the littoral system of the Elwha River before the scheduled removal of two large dams in 2012. A primary objective of this work is to quantitatively describe the topography and bathymetry of the Elwha River littoral system so that the effects of dam removal may be quantified. Sediment inputs following dam removal are hypothesized to result in (A) larger amounts of fine sediment grain-sizes entering the littoral system and, (B) a reduction or reversal of coastal erosion.
Posted: 2008-07-11

Derivation of Ground Surface and Vegetation in a Coastal Florida Wetland with Airborne Laser Technology
The geomorphology and vegetation of marsh-dominated coastal lowlands were mapped from airborne laser data points collected on the Gulf Coast of Florida near Cedar Key. Surface models were developed using low- and high-point filters to separate ground-surface and vegetation-canopy intercepts. In a non-automated process, the landscape was partitioned into functional landscape units to manage the modeling of key landscape features in discrete processing steps. The final digital ground surface-elevation model offers a faithful representation of topographic relief beneath canopies of tidal marsh and coastal forest. Bare-earth models approximate field-surveyed heights by + 0.17 m in the open marsh and + 0.22 m under thick marsh or forest canopy. The laser-derived digital surface models effectively delineate surface features of relatively inaccessible coastal habitats with a geographic coverage and vertical detail previously unavailable.
Posted: 2008-06-01

EAARL Topography-Thomas Stone National
Digital map atlas of lidar-derived topography maps for Thomas Stone National Historic Site
Posted: 2008-04-28

USGS-NPS-NASA EAARL Submarine Topography-Northern Florida Keys
Digital map atlas of lidar-derived submarine topography maps for the Northern Florida Keys Reef Tract
Posted: 2008-04-25

EAARL Topography-Sagamore Hill National Historic Site (SAHI)
Digital atlas of lidar-derived topography maps for Sagamore Hill National Historic Site
Posted: 2008-04-24

EAARL Topography-Gateway National Recreation Area-Home
Digital map atlas of lidar-derived topography maps for the Gateway National Recreation Area
Posted: 2008-04-23

EAARL Submarine Topography-Florida Keys National Marine
Digital atlas of Lidar-derived submarine topography maps for Florida Keys National Marine Sanctuary
Posted: 2008-04-21

EAARL First Return Topography—Fire Island National Seashore
Digital map atlas of lidar-derived topography maps for Assateague Island National Seashore
Posted: 2008-04-21

USGS-NPS-NASA EAARL Bare Earth Topography - Fire Island National Seashore
Digital map atlas of Lidar-derived topography maps for Fire Island National Seashore
Posted: 2008-04-21

EAARL Topography-Gulf Islands National Seashore (GUIS)-Florida
Digital atlas of lidar-derived bare earth topography maps for Gulf Islands National Seashore-Florida
Posted: 2008-04-17

USGS-NPS-NASA EAARL Topography - George Washington Birthplace
Digital map atlas of lidar-derived topography maps for George Washington Birthplace National Monument
Posted: 2008-04-17

EAARL Topography - Cape Cod National Seashore
Digital atlas of lidar-derived bare earth topography maps for Cape Cod National Seashore
Posted: 2008-04-17

EAARL Topography-Padre Island National Seashore
This Web site contains 116 Lidar-derived bare earth topography maps and GIS files for Padre Island National Seashore-Texas.
Posted: 2008-04-01

EAARL Submarine Topography—Florida Keys National Marine Sanctuary
This Web site contains 46 Lidar-derived submarine topography maps and GIS files for the Florida Keys National Marine Sanctuary.
Posted: 2008-04-01

EAARL First Return Topography—Fire Island National Seashore
This Web site contains 31 LIDAR-derived first return topography maps and GIS files for Fire Island National Seashore.
Posted: 2008-04-01

EAARL Topography—George Washington Birthplace National Monument
This Web site contains Lidar-derived topography (first return and bare earth) maps and GIS files for George Washington Birthplace National Monument in Virginia.
Posted: 2008-04-01

EAARL Topography—Cape Cod National Seashore
This Web site contains 90 Lidar-derived bare earth topography maps and GIS files for the Cape Cod National Seashore.
Posted: 2008-04-01

EAARL Topography - Assateague Island National Seashore
This Web site contains 58 lidar-derived bare earth topography maps and GIS files for the Assateague Island National Seashore.
Posted: 2008-04-01

EAARL Topography—Gulf Islands National Seashore-Florida
This Web site contains 33 lidar-derived bare earth topography maps and GIS files for the Gulf Islands National Seashore-Florida.
Posted: 2008-04-01

USGS-NPS-NASA EAARL Topography - Dry Tortugas National Park
This lidar-derived submarine topography map was produced as a collaborative effort between the U.S. Geological Survey (USGS) Coastal and Marine Geology Program, National Park Service (NPS) South Florida/Caribbean Network Inventory and Monitoring Program, and the National Aeronautics and Space Administration (NASA) Wallops Flight Facility. One objective of this research is to create techniques to survey coral reefs for the purposes of habitat mapping, ecological monitoring, change detection, and event assessment (for example: bleaching, hurricanes, disease outbreaks).
Posted: 2008-03-24

EAARL Topography–Gulf Islands National Seashore
Digital atlas of lidar-derived topography maps for Gulf Islands National Seashore-Mississippi
Posted: 2008-03-17

GIS Library, Multibeam Data, Massachusetts Bay, SBNM Sanctuary, USGS Data Series 99; Version 1.0; Start Page
This Geographic Information Systems (GIS) library contains images and grids of bathymetry, shaded relief bathymetry, and backscatter intensity data from surveys of the Stellwagen Bank National Marine Sanctuary and western Massachusetts Bay, offshore of Boston, Massachusetts. The data are in an Environmental Systems Research Institute (www.esri.com) (ESRI) ArcMap 9.1 Geographic Information System project. The shapefiles, images, and grids may also be downloaded individually. Descriptions and interpretations of the data are available in a series of published maps.
Posted: 2008-03-06

Open-File Report 2007-1271: Seafloor Mapping and Benthic Habitat GIS for Southern California, Volume III - USGS WCMG
This is a description of selected data layers for the Seafloor Mapping and Benthic Habitat GIS for Southern California
Posted: 2008-03-06

EAARL Topography - Assateague Island National Seashore (ASIS)
Digital atlas of lidar-derived topography maps for Assateague Island National Seashore
Posted: 2008-02-27

USGS OFR 2007-1012: Geologic Interpretation and Multibeam Bathymetry of the Sea Floor in the Vicinity of the Race, Eastern Long Island Sound, Title Page
Interpretations of the exposed geological units and surface processes of easternmost Long Island Sound and westernmost Block Island Sound based on multibeam bathymetry and high-resolution seismic reflection profiles.
Posted: 2008-02-01

USGS OFR 2007-1191: The Geology of Six Mile Reef, Eastern Long Island Sound, Title Page
Interpretations of the sedimentary environments and surface processes of Six Mile Reef based on multibeam bathymetry and subbottom seismics.
Posted: 2008-02-01

USGS Open-File Report 2006-1008, High-Resolution Geologic Mapping of the Inner Continental Shelf: Boston Harbor and Approaches, Massachusetts, Title Page
Geologic mapping of the Massachusetts' inner continental shelf reveals a high-relief, bedrock-framed seafloor that is partially mantled with a wide variety of surfical sediments.
Posted: 2008-02-01

The Massachusetts Bay Internal Wave Experiment, August 1998: Data Report, USGS DS 85, Version 2.0, Start Page
This data report presents a description of the Massachusetts Bay Internal Wave Experiment (MBIWE) field program carried out in August 1998, an overview of the data through summary plots and statistics, and the time-series data in NetCDF format. The objective of this report is to make the data available in digital form and to provide summary plots and statistics to facilitate browsing of the data set.
Posted: 2008-02-01

USGS Open-File Report 2005-1066, Project PROBE Leg I, CTD/XBT and GPS Navigation Data Collected During USGS Cruise 02051, Puerto Rico Trench, September 24-30, 2002, title page
This report contains the documentation and raw data files that were collected between 24 September and 10 September 2002 as part of USGS Cruise 02051 (NOAA Cruise RB0208). It includes archive files of Multibeam Bathymetry and Acoustic Backscatter, CTD/XBT and GPS navigation that were collected in the process of mapping the Puerto Rico Trench.
Posted: 2008-02-01

USGS Professional Paper 1751: Systematic Mapping of Bedrock and Habitats along the Florida Reef Tract--Central Key Largo to Halfmoon Shoal
Systematic Mapping of Bedrock and Habitats along the Florida Reef Tract: Central Key Largo to Halfmoon Shoal (Gulf of Mexico) details the bio/geologic record in the Florida Keys from 325,000 years ago to the present.
Posted: 2008-01-23

Habitat and Hydrology: Assessing Biological Resources of the Suwannee River Estuarine System Open-File Report 2007-1382
Habitat and Hydrology: Assessing Biological Resources of the Suwannee River Estuarine System, Open File Report 2007-1382
Posted: 2008-01-18

USGS Monterey Bay Science
USGS Monterey Bay Science - USGS research in the Monterey Bay National Marine Sanctuary and coastal watersheds of central California
Posted: 2008-01-01

USGS Coastal Change Hazards
USGS Coastal Change Hazards - Focuses on hurricanes, tsunamis, sea-level rise, shoreline erosion, wetland destruction, and other issues relevant to coastal zone management and disaster preparedness.
Posted: 2008-01-01

Science and the Storms: the USGS Response to the Hurricanes of 2005
This report is designed to give a view of the immediate response of the U.S. Geological Survey (USGS) to four major hurricanes of 2005: Dennis, Katrina, Rita, and Wilma. Some of this response took place days after the hurricanes; other responses included fieldwork and analysis through the spring. While hurricane science continues within the USGS, this overview of work following these hurricanes reveals how a Department of the Interior bureau quickly brought together a diverse array of its scientists and technologies to assess and analyze many hurricane effects. Topics vary from flooding and water quality to landscape and ecosystem impacts, from geotechnical reconnaissance to analyzing the collapse of bridges and estimating the volume of debris. Thus, the purpose of this report is to inform the American people of the USGS science that is available and ongoing in regard to hurricanes. It is the hope that such science will help inform the decisions of those citizens and officials tasked with coastal restoration and planning for future hurricanes.
Posted: 2008-01-01

Archive of Digital CHIRP Seismic Reflection Data Collected During USGS Cruise 06SCC03 Offshore of Cheniere Caminada, Louisiana, July 2006
In July of 2006, the U.S. Geological Survey conducted a geophysical survey offshore of Cheniere Caminada, Louisiana, as part of the USGS Barrier Island Coastal Monitoring project (BICM), which is part of a broader study focused on Subsidence and Coastal Change (SCC).
Posted: 2007-12-01

Coastal and Marine Knowledge Bank
An initiative to develop and present a national-scale, interdisciplinary scientific framework for marine environments, the coastal zone, and coastal watersheds
Posted: 2007-11-28

Archive of Digital Boomer and CHIRP Seismic Reflection Data Collected During USGS Cruise 06FSH03 Offshore of Fort Lauderdale, Florida, September 2006
In September of 2006, the U.S. Geological Survey (USGS) conducted geophysical surveys offshore of Fort Lauderdale, FL, as part of the USGS Florida Shelf Habitat (FLaSH) Mapping Project.
Posted: 2007-11-01

USGS Open-File Report 2006-1195, Surficial Sediment Character of the Louisiana Offshore Continental Shelf Region: a GIS Compilation
The Louisiana coastal zone, comprising the Mississippi River delta plain stretching nearly 400 km from Sabine Pass at the Texas border east to the Chandeleur Islands at the Mississippi border, represents one of North America's most important coastal ecosystems in terms of natural resources, human infrastructure, and cultural heritage. At the same time, this region has the highest rates of coastal erosion and wetland loss in the Nation due to a complex combination of natural processes and anthropogenic actions over the past century. The USGS has actively supported coastal and wetlands geologic research for the past two decades in partnership with universities (e.g., Louisiana State University, University of New Orleans), state agencies (e.g. Louisiana Geological Survey, Louisiana Department of Natural Resources), and private organizations (Williams and others, 1992a,b; Williams and Cichon, 1993; List and others, 1994). These studies have focused on regional-scale mapping of coastal and wetland change and developing a better understanding of the processes that cause coastal erosion and wetlands loss, particularly the rapid deterioration of Louisiana's barrier islands, estuaries, and wetlands environments. With a better understanding of these processes, the ability to model and predict erosion and wetlands loss will improve. More accurate predictions will, in turn, allow for proper management of coastal resources. Improved predictions will also allow for better assessments of the utility of different restoration alternatives.
Posted: 2007-10-11

USGS OFR 2005-1346: USGS Open-File Report 2005-1346, Geologic Framework Studies of South Carolina's Long Bay from Little River Inlet to Winyah Bay, 1999 - 2003; Geospatial Data Release, Title Page
Geologic framework studies within Long Bay, South Carolina reveal the surficial sediment distribution, sea-floor morphology, and underlying geology of the region.
Posted: 2007-10-11

USGS OFR 2006-1199: Surficial Geology in Central Narragansett Bay, Rhode Island: Interpretations of Sidescan Sonar and Multibeam Bathymetry , Title Page
Surficial geology of Central Narragansett Bay interepreted from sidescan sonar, multibeam bathymetry, and surficial sediment samples.
Posted: 2007-10-11

USGS OFR 2006-1357: Sea-Floor Character and Surface Processes in the Vicinity of Quicks Hole, Elizabeth Islands, Massachusetts, Title Page
Interpretations of the sedimentary environments and surface processes of the Quicks Hole vicinity based on sidescan sonar, multibeam bathymetry, bottom photography, and surficial sediment samples.
Posted: 2007-10-11

USGS OFR 2007-1138: Sea-Floor Character and Sedimentary Processes of Great Round Shoal Channel, Offshore Massachusetts, Title Page
Interpretations of the sedimentary environments and surface processes of Great Round Shoal Channel based on sidescan-sonar, multibeam bathymetry, bottom photography, and surficial sediment samples.
Posted: 2007-10-11

Index for Open file report 2005 1071
This USGS Open-File report presents digital sidescan-sonar imagery, digital seismic-reflection data, and descriptions and analyses of piston and gravity cores collected by the USGS in the Gulf of Mexico. These data were collected in water depths greater than 200 m. In addition to the data, the report also contains interpretive overlays dervied from these datasets.
Posted: 2007-10-11

USGS Open-File Report 2006-1046, Surficial Sediment Character of the New York-New Jersey Offshore Continental Shelf Region: a GIS Compilation, Title Page
Broad continental shelf regions such as the New York Bight are the product of a complex geologic history and dynamic oceanographic processes, dominated by the Holocene marine transgression (>100 m sea-level rise) following the end of the last Pleistocene ice advance ~ 20,000 years ago. Geologic maps of these areas containing detailed morphologic features and sediment character can serve many scientific and operational purposes, but have been lacking until recent advances in computer hardware and software began offering promising results. This report contains a compilation of published and unpublished sediment texture and other geologic data about the seafloor, selected from U.S. Geological Survey Data Series 118; usSEABED Atlantic Coast Offshore Surficial Sediment Data Release, version 1.0. Examples of data products displaying attributes such as grain size and sediment color are included. This report contains information that is the scientific foundation for the USGS Marine Aggregate Resources and Processes Assessment and Benthic Habitats projects, and will be useful to the marine science community for other studies of the New York-New Jersey offshore region.
Posted: 2007-10-11

Continuous Resistivity Profiling Data from the Upper Neuse River Estuary, North Carolina, 2004-2005, USGS Open-File Report 2005-1306, Title Page
This USGS Open-File Report presents Continuous Resistivity Profiling data collected in the Neuse River, North Carolina. This report also contains a description of the processing techniques used with these data.
Posted: 2007-10-11

U.S. Geological Survey Open-File Report 2005-1247, Relative Coastal Change-Potential Assessment of Glacier Bay National Park and Preserve (GBNPP), Title Page
Coastal Change-Potential Assessment of Glacier Bay National Park and Preserve
Posted: 2007-10-11

U.S. Geological Survey Open-File Report 2004-1373, Relative Coastal Change-Potential Assessment of Kenai Fjords National Park (KEFJ), Title Page
Relative Coastal Change Potential Assessment of Kenai Fjords National Park to Sea-Level Change.
Posted: 2007-10-11

U.S. Geological Survey Open-File Report 2005-1248, Coastal Vulnerability Assessment of Kaloko-Honokohau National Historical Park to Sea-Level Rise, Title Page
A coastal vulnerability index (CVI) was used to map the relative vulnerability of the coast to future sea-level rise within Kaloko-Honokohau National Historical Park in Hawaii. The CVI ranks the following in terms of their physical contribution to sea-level rise-related coastal change: geomorphology, regional coastal slope, rate of relative sea-level rise, historical shoreline change rates, mean tidal range and mean significant wave height. The rankings for each input variable were combined, and an index value calculated for 500-meter grid cells covering the park. The CVI highlights those regions where the physical effects of sea-level rise might be the greatest. This approach combines the coastal system's susceptibility to change with its natural ability to adapt to changing environmental conditions, yielding a quantitative, although relative, measure of the park's natural vulnerability to the effects of sea-level rise. The CVI provides an objective technique for evaluation and long-term planning by scientists and park managers. Kaloko-Honokohau National Historical Park consists of carbonate sand beaches, coral rubble, rocky shoreline, and mangrove wetland areas. The areas within Kaloko-Honokohau National Historical Park that are likely to be most vulnerable to sea-level rise based on this analysis are areas of unconsolidated sediment and highest wave energy.
Posted: 2007-10-11

USGS OFR 2006-1059: Geologic Interpretation and Multibeam Bathymetry of the Sea floor in Southeastern Long Island Sound, Title Page
Digital terrain models (DTMs) produced from multibeam echosounder (MBES) bathymetric data provide valuable base maps for marine geological interpretations (e.g. Todd and others, 1999; Mosher and Thomson, 2002; ten Brink and others, 2004; Poppe and others, 2006a,b). These maps help define the geological variability of the sea floor (one of the primary controls of benthic habitat diversity); improve our understanding of the processes that control the distribution and transport of bottom sediments, the distribution of benthic habitats and associated infaunal community structures; and provide a detailed framework for future research, monitoring, and management activities.
Posted: 2007-10-11

U.S. Geological Survey Open-File Report 2005-1048
The imagery, interpretive data layers, and data presented herein were derived from multibeam echo-sounder data collected off Eastern Cape Cod, Massachusetts, and from the stations occupied to verify these acoustic data. The basic data layers show sea-floor topography, sun-illuminated shaded relief, and backscatter intensity; interpretive layers show the distributions of surficial sediment and sedimentary environments. Presented verification data include new and historical sediment grain-size analyses and a gallery of still photographs of the seabed.
Posted: 2007-10-11

South Carolina Coastal Erosion Study, Data Report for Observations, October 2003 - April 2004, U.S. Geological Survey Open-File Report 2005-1429, Start Page
This data report presents oceanographic observations made at nine sites in Long Bay, South Carolina from October 2003 through April 2004. These sites were offshore of Myrtle Beach, South Carolina, and were centered around a shore-oblique sand feature that is approximately 10 km long, 2 km wide, and in excess of 3 m thick. The data report contains a description of the field program and instrumentation, and an overview of the observations through summary plots and statistics. The data in NetCDF and ASCII format are provided in digital form. Summary plots and statistics are provided to facilitate browsing of the measurements.
Posted: 2007-10-11

Open-File Report 2006-1177: Benthic Habitat and Geologic Mapping of the Outer Continental Shelf of North-Central California
This is a description of selected data layers for Fanny Shoal, located on the outer Continental Shelf of North-Central California, with available GIS data sets for download. The Fanny Shoal area is located between North Farallon Island and Cordell Bank approximately 40 miles west of San Francisco, California.
Posted: 2007-10-01

National Assessment of Coastal Change Hazards
The National Assessment of Coastal Change Hazards is a multi-year undertaking to identify and quantify the vulnerability of U.S. shorelines to coastal change hazards such as the effects of severe storms, sea-level rise, and shoreline erosion and retreat. It will continue to improve our understanding of processes that control these hazards, and will allow researchers to determine the probability of coastal change locally, regionally, and nationally. The Assessment will deliver these data and assessment findings about coastal vulnerability to coastal managers, other researchers, and the general public.
Posted: 2007-09-28

Archive of Side Scan Sonar and Bathymetry Data Collected During USGS Cruise 06FSH01 Offshore of Siesta Key, Florida, May 2006
In May of 2006, the U.S. Geological Survey conducted a geophysical survey offshore of Siesta Key, Florida, as part of the USGS Florida Shelf Habitat (FLaSH) Study, a multiagency benthic habitat mapping project
Posted: 2007-09-01

Archive of Digital and Digitized Analog Boomer Seismic Reflection Data Collected During USGS Cruise 96CCT02 in Copano, Corpus Christi, and Nueces Bays and Corpus Christi Bayou, Texas, July 1996
In July of 1996, the U.S. Geological Survey (USGS) conducted geophysical surveys to investigate the shallow geologic framework from Nueces Bay to Copano Bay, Texas, as part of the USGS Coastal Change and Transport (CCT) study.
Posted: 2007-09-01

Historical Changes in the Mississippi-Alabama Barrier Islands and the Roles of Extreme Storms, Sea Level, and Human Activities
Historical Changes in the Mississippi-Alabama Barrier Islands and the Roles of Extreme Storms, Sea Level, and Human Activities explores the causes of Mississippi-Alabama barrier island land loss and translocation.
Posted: 2007-08-16

Open-File Report 2006-1251: The National Assessment of Shoreline Change: A GIS Compilation of Vector Shorelines and Associated Shoreline Change Data for the Sandy Shorelines of the California Coast
This report contains links to data coverage --GIS-- of shoreline change of sandy shorelines of the California Coast.
Posted: 2007-07-30

Open-File Report 2005-1070: Moloka'i Benthic Habitat Mapping
In order to provide evidence of change in any ecosystem, one must first have a starting point, or "baseline" inventory of resources. Thematic maps providing this baseline inventory are an important tool in assessing change in coral reef ecosystems, allowing scientists to spatially document the location of corals, percentage of coral cover, and relative overall health of the system. In the last decade, scientists and managers have recognized the lack of thematic maps for coral reefs worldwide. In 1998, the President of the U.S. issued Executive Order 13089 establishing the U.S. Coral Reef Task Force (CRTF). Comprised of several Federal agencies, including the U.S. Geological Survey, the primary duty of the CRTF is mapping and monitoring of coral reefs in the U.S. and U.S. Trust Territories. U.S. Geological Survey Open File Report 2005-1070 Version 1.0 Moloka'i Benthic Habitat Mapping By Susan A. Cochran-Marquez USGS Pacific Science Center Santa Cruz, CA Introduction In order to provide evidence of change in any ecosystem, one must first have a starting point, or "baseline" inventory of resources. Thematic maps providing this baseline inventory are an important tool in assessing change in coral reef ecosystems, allowing scientists to spatially document the location of corals, percentage of coral cover, and relative overall health of the system. In the last decade, scientists and managers have recognized the lack of thematic maps for coral reefs worldwide. In 1998, the President of the U.S. issued Executive Order 13089 establishing the U.S. Coral Reef Task Force (CRTF). Comprised of several Federal agencies, including the U.S. Geological Survey, the primary duty of the CRTF is mapping and monitoring of coral reefs in the U.S. and U.S. Trust Territories. Moloka'i is one of the main eight Hawaiian Islands (Figure 1). The south shore of Moloka'i is home to the most continuous fringing coral reef in U.S. waters...
Posted: 2007-07-05

Scientific Investigations Report 2006-5254: Geologic Resource Evaluation of Pu‘ukohola Heiau National Historic Site, Hawai‘i
In cooperation with the U.S. National Park Service (NPS), the U.S. Geological Survey (USGS) has mapped the underwater environment in and adjacent to three parks along the Kona coast on the island of Hawai‘i. This report is the second of two produced for the NPS on the geologic resource evaluation of Pu‘ukohola Heiau National Historic Site (PUHE) and presents benthic habitat mapping of the waters of Kawaihae Bay offshore of PUHE. See Part I (Richmond and others, 2006) for an overview of the regional geology, local volcanics, and a detailed description of coastal landforms in the park.
Posted: 2007-07-05

Open-File Report 2007-1169: 2005 Hydrographic Survey of South San Francisco Bay, California
USGS report entitled: 2005 Hydrographic Survey of South San Francisco Bay, California; this report documents how the hydrographic survey was conducted, provides an accuracy assessment of the data and distributes the sounding data along with a high-resolution shaded relief map of the bathymetry of South San Francisco Bay.
Posted: 2007-07-05

Florida Shelf Habitat (FLaSH) Map Project
The FLaSH Map project is a multiagency approach to benthic habitat mapping. Existing data is presented via user-friendly graphic, geographic, and visualization tools. Data from multibeam, sidescan sonar imagery, still and video images, streaming resistivity, and sediment grabs are available for viewing by the general public, scientists and managers.
Posted: 2007-06-18

Data Series 260: Beach Morphology Monitoring in the Columbia River Littoral Cell: 1997-2005
This report describes methods used, data collected, and results of the Beach Morphology Monitoring Program in the Columbia River Littoral Cell (CRLC) from 1997 to 2005. A collaborative group primarily consisting of the US Geological Survey and the Washington State Department of Ecology performed this work. Beach Monitoring efforts consisted of collecting topographic and bathymetric horizontal and vertical position data using a Real Time Kinematic Differential Global Positioning System (RTK-DGPS). Sediment size distribution data was also collected as part of this effort. The monitoring program was designed to: 1) quantify the short- to medium-term (seasonal to interannual) beach change rates and morphological variability along the CRLC and assess the processes responsible for these changes; 2) collect beach state data (i.e., grain size, beach slope, and dune/sandbar height/position) to enhance the conceptual understanding of CRLC functioning and refine predictions of future coastal change and hazards; 3) compare and contrast the scales of environmental forcing and beach morphodynamics in the CRLC to other coastlines of the world; and 4) provide beach change data in a useful format to land use managers.
Posted: 2007-05-24

Open-File Report 2005-1401: National Assessment Of Shoreline Change: Part 2, Historical Shoreline Changes And Associated Coastal Land Loss Along The U.S. Southeast Atlantic Coast
An automated method of extracting dune high (Dhi) and dune low (Dlo) from lidar DEMs has been developed for use on the sandy Southeast and Gulf coasts of the United States. The method has been written into an Arc AML script that runs from a command line in ArcInfo Workstation, a popular GIS software product. The output are GIS ready Dhi and Dlo point shapefiles that include several attributes that can assist in post-processing editing as well as elevation.
Posted: 2007-05-11

Archive of Digital CHIRP Seismic Reflection Data Collected During USGS Cruise 06FSH01 Offshore of Siesta Key, Florida, May 2006
In May of 2006, the U.S. Geological Survey conducted geophysical surveys offshore of Siesta Key, Florida, as part of the USGS Florida Shelf Habitat (FLaSH) Mapping Project.
Posted: 2007-03-01

Archive of Digital Chirp Seismic Reflection Data Collected During USGS Cruise 05SCC01 Offshore of Port Fourchon and Timbalier Bay, Louisiana, August 2005
In August of 2005, the U.S. Geological Survey conducted geophysical surveys offshore of Port Fourchon and Timbalier Bay, Louisiana, as part of the USGS Subsidence and Coastal Change (SCC) Study.
Posted: 2007-02-01

Seaside, Oregon, Tsunami Pilot Study GIS, USGS Data Series 236, home page
USGS Digital Series 236: Seaside, Oregon Tsunami Pilot Study-Modernization of FEMA Flood Hazard Maps: GIS Data.
Posted: 2007-01-04

Open-File Report 2006-1180: Digital single-channel seismic-reflection data from western Santa Monica Basin
During a collaborative project in 1992, Geological Survey of Canada and United States Geological Survey scientists obtained about 850 line-km of high-quality single-channel boomer and sleeve-gun seismic-reflection profiles across Hueneme, Mugu and Dume submarine fans, Santa Monica Basin, off southern California. The goals of this work were to better understand the processes that lead to the formation of sandy submarine fans and the role of sea-level changes in controlling fan development. This report includes a trackline map of the area surveyed, as well as images of the sleeve-gun profiles and the opportunity to download both images and digital data files (SEG-Y) of all the sleeve-gun profiles.
Posted: 2006-12-21

Data Series 182, 2006: usSEABED: Pacific Offshore Surficial-Sediment Data Release
Over the past 50 years there has been an explosion in scientific interest, research effort, and information gathered on the geologic sedimentary character of the continental margin of the United States. Data and information from thousands of publications have greatly increased our scientific understanding of the geologic origins of the margin surface but rarely have those data been combined and integrated. This publication is the first release of the Pacific coast data from the usSEABED database. The report contains a compilation of published and unpublished sediment texture and other geologic data about the sea floor from diverse sources. usSEABED is an innovative database system developed to unify assorted data, with the data processed by the dbSEABED system. Examples of maps displaying attributes such as grain size and sediment color are included. This database contains information that is a scientific foundation for the U.S. Geological Survey (USGS) Seafloor Mapping and Benthic Habitats project and the Marine Aggregate Resources and Processes assessment project, and will be useful to the marine science community for other studies of the Pacific coast continental margin.
Posted: 2006-12-01

Open-File Report 2006-1170: Nearshore Benthic Habitat GIS for the Channel Islands National Marine Sanctuary and Southern California State Fisheries Reserves Volume II
This is a description of selected data layers for the USGS Nearshore Benthic Habitat GIS for the Channel Islands National Marine Sanctuary and Southern California State Fisheries Reserves.
Posted: 2006-12-01

USGS Circular 1198 - Beyond the Golden Gate - Oceanography, Geology, Biology, and Environmental Issues in the Gulf of the Farallones
The USGS began a major geologic and oceanographic study of the Gulf of the Farallones in 1989. This investigation, the first of several now being conducted adjacent to major population centers by the USGS, was undertaken to establish a scientific data base for an area of 3,400 square kilometers (1,000 square nautical miles) on the Continental Shelf adjacent to the San Francisco Bay region. The results of this study can be used to evaluate and monitor human impact on the marine environment.
Posted: 2006-11-17

Open-File Report 2006-1346 - Swath Bathymetric Survey of Englebright Lake, Yuba-Nevada Counties, California
USGS report presenting a bathymetric survey of Englebright Reservoir, located in the Sierra Nevada Foothills of California on the Yuba River. The survey was conducted in May, 2001, and this report presents calculations of volumes of sediment that have accumulated in the lake since dam construction in 1941.
Posted: 2006-11-14

Open-File Report 2006-1247: High-resolution chirp seismic reflection data acquired from the Cap de Creus shelf and canyon area, Gulf of Lions, Spain in 2004
This report consists of high-resolution chirp seismic reflection profile data from the northern Gulf of Lions, Spain. These data were acquired in 2004 using the Research Vessel Oceanus (USGS Cruise ID: O-1-04-MS). The data are available in binary and JPEG image formats. Binary data are in Society of Exploration Geologists (SEG) SEG-Y format and may be downloaded for further processing or display. Reference maps and JPEG images of the profiles may be viewed with your Web browser.
Posted: 2006-11-02

U.S. Geological Survey Open-File Report 03-221
This report contains descriptions and ancillary information for 62 bedrock cores, most with associated photographs, from western Cape Cod, Massachusetts.
Posted: 2006-10-20

U.S. Geological Survey Open-File Report 2005-1001
Sediments off the eastern United States vary markedly in texture - the size, shape, and arrangement of their grains. For descriptive purposes, however, it is typically most useful to classify these sediments according to their grain-size distributions. Starting in 1962, the U.S. Geological Survey (USGS) and the Woods Hole Oceanographic Institution (WHOI) began a joint program to study the marine geology of the continental margin off the Atlantic coast of the United States. As part of this program and numerous subsequent projects, thousands of sediment samples were collected and analyzed for grain size.
Posted: 2006-10-20

USGS OFR 2005-1162: Sidescan-Sonar Imagery and Surficial Geologic Interpretation of the Sea Floor off Branford, Ct., Title Page
Sidescan Sonar Imagery and Surficial Geologic Interpretation of the Sea Floor off Bridgeport, Connecticut.
Posted: 2006-10-20

U.S. Geological Survey Open-File Report 2005-1018: Surficial GeologicInterpretation and Sidescan Sonar Imagery of the Sea Floor in West-Central LongIsland Sound
The United States Geological Survey (USGS) is working cooperatively with the National Oceanic and Atmospheric Administration (NOAA) and Connecticut Department of Environmental Protection (CT-DEP) to conduct detailed studies of the surficial geology in Long Island Sound (LIS). The study goals are to interpret sedimentary environments within the Sound, to further understand processes controlling sediment distribution, and to provide a framework for future studies. Sidescan-sonar mosaics produced by USGS and NOAA show detailed acoustic images of the sea floor with 1-m resolution. These images, along with data obtained from sediment grabs, seismic lines, and bottom video, are used to interpret the surficial geology.
Posted: 2006-10-20

USGS Open-File Report 2004-1400
This report contains the documentation and raw data files that were collected between 18 February and 7 March 2003 as part of USGS Cruise 03008 (NOAA Cruise RB0303). It includes archive files of Swath Bathymetric Sonar, CTD/XBT and GPS navigation that were collected in the process of mapping the Puerto Rico Trench.
Posted: 2006-10-20

USGS DDS 74, Vers. 2.0, Long Term Observations in Massachusetts Bay Report, Start Page for Long Term Observations in Massachusetts Bay Report
This data report presents long-term oceanographic observations made in western Massachusetts Bay from October 1989 through December 2002.
Posted: 2006-10-20

Surficial Geology and Analysis, post-impoundment sediment, Lake Mohave, USGS OF 2004-1256, Title Page
This USGS Open-File Report contains the results and analysis of post-impoundment sedimentation of the Lake Mahove reservoir based on a sidescan sonar mosaic and seismic-reflection profiles.
Posted: 2006-10-20

USGS Open-File Report 2005-1293, High-Resolution Geologic Mapping of the Inner Continental Shelf: Nahant to Gloucester, Massachusetts, Title Page
Geologic mapping of the Massachusetts' inner continental shelf reveals a high-relief, bedrock-framed seafloor that is partially mantled with a wide variety of surfical sediments.
Posted: 2006-10-20

Sea Floor Topography and Backscatter Intensity of the Hudson Canyon Region Offshore of New York and New Jersey, USGS Open-File Report 2004-1441, Title Page
This report (available on CD-ROM and on the internet) presents maps of the sea-floor topography and backscatter intensity of the Hudson Canyon region, offshore of New York and New Jersey, USA at a scale of 1:300,000. The maps and geologic interpretation are presented on two sheets in PDF format. Sheet 1 shows sea floor topography as shaded relief. Sheet 2 shows sea floor topography as shaded relief with backscatter intensity superimposed in color. Sheet 1 also contains interpretive text, and both sheets contain figures and tables that further present and describe the data. The interpretive tex can also be viewed in html with links to the figures and tables on the map sheets. The maps are based on new multibeam echo-sounder data collected on an 18-day cruise carried out aboard the National Oceanic and Atmospheric Administration (NOAA) Ship Ronald H. Brown in 2002.
Posted: 2006-10-20

U.S. Geological Survey Open-File Report 2004-1435, title page
Geophysical analysis of a high-amplitude, negative polarity reflector in the Baltimore Canyon Trough are compatible with it being an autochthonous Aalenian(?) salt lens.
Posted: 2006-10-20

USGS OFR 02-372, Physical Properties of Long Island Sound Sediment Cores, Title Page
This report presents data on x-radiography, water content, and sediment texture from sediment cores collected in 1996 in Long Island Sound, offshore of Connecticut and New York (Figure 1). Core locations and analytical data are presented in both graphical and numerical form. The physical properties data presented here are a subset of a larger dataset consisting of results from these cores and other sediment samples. (See Poppe and others (1998) and Mecray and others (2000) for samples collected in Long Island Sound from 1996-2001 by the USGS.)
Posted: 2006-10-20

USGS OFR 2005-1145: Interpolation of Reconnaissance Multibeam Bathymetry from North-Central Long Island Sound, Title Page
This data report contains both the original reconnaissance bathymetry collected during NOAA surveys H11043, H11044, H11045 of north-central Long Island Sound, and interpolated grids and color-encoded hill-shaded imagery produced from the reconnaissance. The report was produced because these bathymetric grids and imagery help define the geological variability of the sea floor, improve our understanding of surficial processes, and provide a detailed framework for future research, monitoring, and management activities.
Posted: 2006-10-20

Sea Floor Image Maps,Stellwagen Bank National Marine Sanctuary Region off Boston, Massachusetts, USGS SIM 2840, Title Page
A report and maps that synthesize the distribution of sea floor features, seabed backscatter, ruggedness and slope, and the extent of boulder ridges and bedrock outcrops in the 1,100 square-nautical-mile region of the Stellwagen National Marine Sanctuary off Boston, Massachusetts.
Posted: 2006-10-20

USGS Open-File Report 2004-1043: National Assessment of Shoreline Change: Part 1, Historical Shoreline Changes and Associated Coastal Land Loss Along the U.S. Gulf of Mexico
National Assessment of Shoreline Change: Part 1, Historical Shoreline Changes and Associated Coastal Land Loss Along the U.S. Gulf of Mexico is a 44-page, full-color discussion of historical shoreline change and coastal land loss along the U.S. Gulf of Mexico.
Posted: 2006-09-15

USGS Coastal and Marine Geology - usSEABED
usSEABED provides data on sediment and rock distributions in the waters off the United States.
Posted: 2006-08-28

Open-File Report 2006-1125: Coastal Circulation and Sediment Dynamics in Hanalei Bay, Kaua'i, Hawaii, Part II, Tracking Recent Fluvial Sedimentation; Isotope Stratigraphy Obtained in Summer 2005
Delivery and dispersal of fluvial sediment in Hanalei Bay, Kaua’i, Hawaii, have important implications for the health of local coral reefs. The reef community in Hanalei Bay represents a relatively healthy ecosystem. However, the reefs are periodically stressed by storm waves, and increases in sediment and dissolved substances from the Hanalei River have the potential to cause additional stress. Increased turbidity and sedimentation on corals during Hanalei River floods that occur in seasons of low wave energy, when sediment would not be readily remobilized and advected out of the bay, could affect the health and sustainability of coral reefs and the many associated species.
Posted: 2006-08-04

usSEABED: East Coast Offshore Surficial Sediment Data Release, Title Page
Over the past 50 years there has been an explosion in scientific interest, research effort and information gathered on the geologic sedimentary character of the U.S. Atlantic coast continental margin. Data and information from thousands of publications have greatly increased our scientific understanding of the geologic origins of the shelf surface but rarely have those data been combined and integrated. This publication is the first release of the Atlantic coast data from the usSEABED database. The report contains a compilation of published and unpublished sediment texture and other geologic data about the seafloor from diverse sources. usSEABED is an innovative database system developed to bring assorted data together in a unified database. The dbSEABED system is used to process the data. Examples of maps displaying attributes such as grain size and sediment color are included. This database contains information that is the scientific foundation for the USGS Marine Aggregate Resources and Processes Assessment and Benthic Habitats projects and will be useful to the marine science community for other studies of the Atlantic coast continental margin. The publication is divided into ten sections: Home, Introduction, Contents, usSEABED (data), dbSEABED (processing), Data Catalog, References, Contacts, Acknowledgments, and Frequently Asked Questions. Use the navigation bar on the left to navigate to specific sections of this report. Underlined topics throughout the publication are links to more information. Links to specific and detailed information on processing and those to pages outside this report will open in a new browser window.
Posted: 2006-08-03

Extracting Shorelines from NASA Airborne Topographic Lidar-Derived Digital Elevation Models
'Extracting Shorelines from NASA Airborne Topographic Lidar-Derived Digital Elevation Models' provides a detailed account of the methodology used for extracting digital shoreline data from lidar topographic surveys.
Posted: 2006-07-18

usSEABED: Gulf of Mexico and Caribbean Offshore Surficial Sediment Data Release, Title Page
usSEABED: Gulf of Mexico and Caribbean (Puerto Rico and U.S. Virgin Islands) Offshore Surficial Sediment Data Release.
Posted: 2006-07-18

Constraining Rates and Trends of Historical Wetland Loss, Mississippi River Delta Plain, South-Central Louisiana
'Constraining Rates and Trends of Historical Wetland Loss, Mississippi River Delta Plain, South-Central Louisiana' was originally published in Coastal Environment and Water Quality - Proceedings of the AIH 25th Anniversary Meeting and International Conference 'Challenges in Coastal Hydrology and Water Quality.' The paper describes the timing, magnitude, and rate of wetland loss for five wetland-loss hotspots in the Terrebonne Basin of the Mississippi River delta plain.
Posted: 2006-07-11

Data Series 180, 2006: Capitol Lake, Washington, 2004 Data Summary
At the request of the Washington Department of Ecology (WDOE), the US Geological Survey (USGS) collected bathymetry data in Capital Lake, Olympia, Wash., on September 21, 2004. The data are to be used to calculate sediment infilling rates within the lake as well as for developing the bottom boundary conditions for numerical models of water quality, sediment transport, and morphological change. In addition, the USGS collected sediment samples in Capitol Lake in February, 2005, to help characterize bottom sediment for numerical model calculations and substrate assessment.
Posted: 2006-05-23

Open-File Report 2006-1081: Geologic Characteristics of Benthic Habitats in Glacier Bay, Southeast Alaska
This is a description of selected data layers for the seafloor geomorphology of Glacier Bay National Park and Preserve, southeast Alaska.
Posted: 2006-04-04

The National Assessment of Shoreline Change: A GIS Compilation of Vector Shorelines and Associated Shoreline Change Data for the U.S. Southeast Atlantic Coast
The Coastal and Marine Geology Program of the U.S. Geological Survey has generated a comprehensive database of digital vector shorelines and shoreline change rates for the U.S. Southeast Atlantic Coast (Florida, Georgia, South Carolina, North Carolina). These data, which are presented herein, were compiled as part of the U.S. Geological Survey's National Assessment of Shoreline Change Project.
Posted: 2006-02-06

The Coastal Impact Assessment Tool (CIAT), Version 1.0, User's Manual - USGS Open-File Report 2005-1260
User's manual for The Coastal Impact Assessment Tool (CIAT), Version 1.0.
Posted: 2005-12-06

CA, OR & WA GLORIA Imagery
GLORIA sidescan sonar imagery of the Exclusive Economic Zone of the West Coast of the USA - Washington, Oregon and California.
Posted: 2005-09-12

Bering Sea GLORIA Imagery
GLORIA sidescan sonar imagery of the Bering Sea, Alaska showing index map and downloadable quadrangles of sea-floor imagery.
Posted: 2004-11-15

USGS Open-File Report 03-320, Mapping the floor of Lake Mead (Nevada and Arizona): Preliminary discussion and GIS data release, Title Page
This USGS Open-File Report describes the morphology of the floor of Lake Mead concentrating on post-impoundment sediment distribution and thickness.
Posted: 2004-05-07

The National Assessment of Shoreline Change: A GIS Compilation of Vector Shorelines and Associated Shoreline Change Data for the U.S. Gulf of Mexico - USGS Open File Report 2004-1089
The Coastal and Marine Geology Program of the U.S. Geological Survey has generated a comprehensive database of digital vector shorelines and shoreline change rates for the U.S. Gulf of Mexico. These data, which are presented herein, were compiled as part of the U.S. Geological Survey's National Assessment of Shoreline Change Project.
Posted: 2004-04-14

99SCE01 Home Page
This Open-File Report serves as an archive of field seismic data, associated navigation files, trackline maps, scanned logbooks, and formal seismic metadata, for boomer data collected on USGS Cruise 99SCE01. These data were recorded aboard the R/V G.K. Gilbert in the nearshore region of South Carolina, between Little River Inlet to the entrance of Winyah Bay on 8 June -16 June, 1999.
Posted: 2004-04-14

U.S. Geological Survey Digital Data Series 79, >Coastal Erosion and Wetland Change in Louisiana:
Coastal erosion and wetland change in Louisiana
Posted: 2003-12-11

Fact Sheet 024-03: Bacterial Contamination at Huntington Beach, California—Is It From a Local Offshore Wastewater Outfall?
During the summers of 1999 and 2000, beaches at Huntington Beach, California, were repeatedly closed to swimming because of high bacteria levels in the surf zone. The city’s beaches are a major recreational and commercial resource, normally attracting millions of visitors each summer. One possible source of the bacterial contamination was the Orange County Sanitation District’s sewage outfall, which discharges treated wastewater 4.5 miles offshore at a depth of 200 feet. Scientists from the U.S. Geological Survey and cooperating organizations have been investigating whether ocean currents and waves transport the wastewater to the beaches. These studies indicate that bacteria from the outfall are not a significant source of the beach contamination.
Posted: 2003-10-29

USGS OFR 03-111 - Preliminary Analysis Of Cores From North San Francisco Bay, California
In March 2000, the U.S. Geological Survey collected sediment cores in North San Francisco Bay, California to determine the location of mercury-contaminated hydraulic mining debris. This report documents preliminary analyses conducted on a subset of the cores collected on the March 2000 cruise. Field and laboratory methods used to analyze the cores are described. Field core descriptions, core X-radiographs, classification of stratigraphy from X- radiographs, and magnetic susceptibility are presented in the data section.
Posted: 2003-10-29

USGS OFR 03-120 - Bathymetry and selected perspective views of 6 reef and coastal areas in Northern Lake Michigan
We apply state of the art laser technology and derivative imagery to map the detailed morphology and of principal lake trout spawning sites on reefs in Northern Lake Michigan and to provide a geologic interpretation. We sought to identify the presence of ideal spawning substrate: shallow, "clean" gravel/cobble substrate, adjacent to deeper water. This study is a pilot collaborative effort with the US Army Corps of Engineers SHOALS (Scanning Hydrographic Operational Airborne Lidar Survey) program. The high-definition maps are integrated with known and developing data on fisheries, as well as limited substrate sedimentologic information and underlying Paleozoic carbonate rocks.
Posted: 2003-10-29

USGS OFR 03-383 - Bathymetric and geophysical surveys of Englebright Lake, Yuba-Nevada Counties, California
Harry L. Englebright Lake (Englebright Lake; Figure 1) is a 9-mile-long (14-kilometer) reservoir located in the Sierra Nevada foothills of northern California on the Yuba River gorge known as The Narrows. The reservoir is impounded by Englebright Dam (Photo 1), a concrete arch structure spanning 348 meters (1,142 feet) across and 79 meters (260 feet) high. The dam was constructed in 1941 for the primary purpose of trapping sediment derived from anticipated hydraulic mining operations in the Yuba River watershed. Hydraulic mining in the Sierra Nevada was halted in 1884 but resumed on a limited basis until the 1930's under the regulation of the California Debris Commission. Although no hydraulic mining in the upper Yuba River watershed resumed after the construction of the dam, the historical mine sites continued to contribute sediment to the river. Today, Englebright Lake is used primarily for recreation and hydropower. In 2001 and 2002, the U.S. Geological Survey (USGS) conducted bathymetric, geophysical, and geological studies of the reservoir under the auspices of the Upper Yuba River Studies Program (UYRSP), a multi-disciplinary investigation into the feasibility of introducing anadromous fish species to the Yuba River system upstream of Englebright Dam. A primary purpose of these studies was to assess the quantity and nature of the sediment that has accumulated behind the dam over the past 60 years. This report presents the results of those surveys, including a new bathymetric map of the reservoir and estimates of the total accumulated sediment volume.
Posted: 2003-10-29

USGS OFR 03-397 - Preliminary Cross Section of Englebright Lake Sediments
The Upper Yuba River Studies Program is a CALFED-funded, multidisciplinary investigation of the feasibility of introducing anadromous fish species to the Yuba River system upstream of Englebright Dam. Englebright Lake (Figure 1 on poster) is a narrow, 14-km-long reservoir located in the northern Sierra Nevada, northeast of Marysville, CA. The dam was completed in 1941 for the primary purpose of trapping sediment derived from mining operations in the Yuba River watershed. Possible management scenarios include lowering or removing Englebright Dam, which could cause the release of stored sediments and associated contaminants, such as mercury used extensively in 19th-century hydraulic gold mining. Transport of released sediment to downstream areas could increase existing problems including flooding and mercury bioaccumulation in sport fish. To characterize the extent, grain size, and chemistry of this sediment, a coring campaign was done in Englebright Lake in May and June 2002. More than twenty holes were drilled at 7 different locations along the longitudinal axis of the reservoir (Figure 4 on poster), recovering 6 complete sequences of post-reservoir deposition and progradation. Here, a longitudinal cross section of Englebright Lake is presented (Figure 5 on poster), including pre-dam and present-day topographic profiles, and sedimentologic sections for each coring site. This figure shows the deltaic form of the reservoir deposit, with a thick upper section consisting of sand and gravel overlying silt, a steep front, and a thinner lower section dominated by silt. The methodologies used to create the reservoir cross section are discussed in the lower part of this poster.
Posted: 2003-10-29

USGS OFR 02-411 - Multibeam Mapping of Selected Areas of the Outer Continental Shelf, Northwestern Gulf of Mexico - Data, Images, and GIS
Following the publication of high-resolution (5-meter spatial resolution) multibeam echosounder (MBES) images of the Flower Garden Banks National Marine Sanctuary area of the northwest Gulf of Mexico (Gardner et al., 1998), the Flower Garden Banks National Marine Sanctuary (FGBNMS) and the Minerals Management Service (MMS) have been interested in additional MBES data in the area. A coalition of FGBNMS, MMS, and the US Geological Survey (USGS) was formed to map additional areas of interest in the northwestern Gulf of Mexico (Figure 1) in 2002. FGBNMS chose the survey areas and the USGS chose the MBES. MMS and FGBNMS funded the mapping and the USGS organized the ship and multibeam systems through a cooperative agreement between the USGS and the University of New Brunswick. The objective of the cruise was to map seven regions of interest to MMS and the FGBNMS. This report provides the multibeam bathymetry and acoustic backscatter data, images, FGDC-compliant metadata, and a geographic information system (GIS) project from the 2002 surveys. This report also provides the multibeam bathymetry and acoustic backscatter data, images, and metadata from the 1997 USGS survey of East and West Flower Garden Bank and Stetson Bank.
Posted: 2003-10-29

USGS OFR 02-410 - USGS Western Region Coastal and Marine Geology Cruise Report, R/V Ocean Surveyor Cruise O1-02-GM: Bathymetry and Acoustic Backscatter of Selected Areas of the Outer Continental Shelf, Northwestern Gulf of Mexico
Following the publication of high-resolution multibeam echosounder (MBES) images and data of the Flower Gardens area of the northwest Gulf of Mexico outer continental shelf (Gardner et al., 1998), the Flower Gardens Banks National Marine Sanctuary (FGBNMS) and the Minerals Management Service (MMS) have been interested in additional MBES data in the area. A coalition of FGBNMS, MMS, and the US Geological Survey (USGS) was formed to map additional areas of interest in the northwestern Gulf of Mexico (Fig. 1) in 2002. The areas were chosen by personnel of the FGBNMS and the choice of MBES was made by the USGS. MMS and FGBNMS funded the mapping and the USGS organized the ship and multibeam systems through a Cooperative Agreement between the USGS and the University of New Brunswick. The University of New Brunswick (UNB) contracted the RV Ocean Surveyor and the EM1000 MBES system from C&C Technologies, Inc., Lafayette, LA. C&C personnel oversaw data collection whereas UNB personnel conducted the cruise and processed all the data. USGS personnel were responsible for the overall cruise including the final data processing and digital map products.
Posted: 2003-10-29

Marine Geology Publication 181:1-3 - Seafloor geology and natural environment of the Monterey Bay National Marine Sanctuary
Excerpt from "Preface" ... the US Geological Survey (USGS) [convened] a workshop in 1993 to decide the types of research projects that should be supported in the Monterey Bay National Marine Sanctuary (MBNMS). The workshop was led by Michael Field of USGS and had wide participation by researchers in the Monterey Bay area. This volume is the outgrowth of the decisions made at that workshop. All the studies in this volume have at least one attribute in common: they are aimed at developing a better understanding of the MBNMS environment. Many of them come under the umbrella of characterization of the coastal and seafloor geologic environment. Others are concerned with geologic processes active in the Sanctuary and along the coastline. These include studies on circulation dynamics and benthic biota. Due to the perceived societal importance of the nearshore environment, and the limited resources available, the studies herein are dominantly centered on the continental shelf, despite the fact that 2/3 of the MBNMS is comprised of water depths beyond the shelf break ...
Posted: 2003-10-29

Open-File Report 03-002, Texture, Carbonate Content, and Preliminary Maps of Surficial Sediments of the Flower Garden Banks Area, Northwestern Gulf of Mexico Outer Shelf, Title Page
The purpose of this report is to release texture and carbonate content data from 107 seafloor sediments collected within and near the East and West Flower Garden Banks areas of the Flower Garden Banks National Marine Sanctuary and to show relationships between these data and existing bathymetric data.
Posted: 2003-10-22

Photographs of the Sea Floor Offshore of New York and New Jersey, USGS Open-File Report 01-470, Start page
A collection of sea floor bottom photographs taken offshore of New York and New Jersey
Posted: 2003-10-10

USGS OFR 03-85 - Nearshore Benthic Habitat GIS for the Channel Islands National Marine Sanctuary and Southern California State Fisheries Reserves Volume 1.
The nearshore benthic habitat of the Santa Barbara coast and Channel Islands supports diverse marine life that is commercially, recreationally, and intrinsically valuable. Some of these resources are known to be endangered including a variety of rockfish and the white abalone. Agencies of the state of California and the United States have been mandated to preserve and enhance these resources. Data from sidescan sonar, bathymetry, video and dive observations, and physical samples are consolidated in a geographic information system (GIS). The GIS provides researchers and policymakers a view of the relationship among data sets to assist scienctific research and to help with economic and social policy-making decisions regarding this protected environment.
Posted: 2003-10-01

USGS OFR 03-110 - Cruise Report for A1-02-SC: Southern California CABRILLO project, Earthquake Hazards Task
A two-week marine geophysical survey obtained sidescan-sonar images and multiple sets of high-resolution seismic-reflection profiles in the southern California offshore area between Point Arguello and Point Dume. The data were obtained to support two project activities of the United States Geological Survey (USGS) Coastal and Marine Geology (CMG) Program: (1) the evaluation of the geologic hazards posed by earthquake faults and landslides in the offshore areas of Santa Barbara Channel and western Santa Monica Basin and (2) determine the location of active hydrocarbon seeps in the vicinity of Point Conception as part of a collaborative study with the Minerals Management Service (MMS). The 2002 cruise, A1-02- SC, is the fourth major data-collection effort in support of the first objective (Normark et al., 1999a, b; Gutmacher et al., 2000). A cruise to obtain sediment cores to constrain the timing of deformation interpreted from the geophysical records is planned for the summer of 2003.
Posted: 2003-10-01

Oceanographic Observations, Hudson Shelf Valley, U.S. Geological Survey Open-File Report 02-217, Title Page
This data report presents oceanographic observations made in the Hudson Shelf Valley, offshore of New York, between December 1999 and April 2000
Posted: 2003-09-11

High-Resolution Quaternary Seismic Stratigraphy of the New York Bight Continental Shelf, USGS Open-File Report 02-152, Title Page
This USGS Open-File Report describes the Quaternary evolution of the New York Bight region, based on geophysical data acquired in 1995 and 1996.
Posted: 2003-08-14

U.S. Geological Survey Open-File Report 03-001, Title Page
This report contains surficial sediment data from previously unpublished data sources or from gray literature. These data have been compiled as part of the National Benthic Habitats and Marine Aggregate Resources and Processes Projects to update the existent maps on surficial sediment distribution available for the Gulf of Maine region. Sediment data in this report are GIS ready and are broken into data layers by their original source project. The data layers are provided as single-point vector datasets with sample identifiers, navigation, textural attribute information, and FGDC compliant metadata.
Posted: 2003-08-14

Digital Shoreline Analysis System (DSAS) version 2.0
This page allows the download of the Digital Shoreline Analysis (DSAS) ArcView extension.
Posted: 2003-08-08

USGS Fact Sheet 64-03: The Marine Realms Information Bank -- A Coastal and Marine Digital Library
The Marine Realms Information Bank -- A Coastal and Marine Digital Library
Posted: 2003-07-06

Saltwater Intrusion in Los Angeles Area Coastal Aquifers--the Marine Connection | FS 030-02
One-third of the water supply for coastal areas of Greater Los Angeles comes from local ground-water sources. Saltwater has penetrated a part of the supply, and a significant part of the remaining supply is at risk. U.S. Geological Survey scientists, working in cooperation with local water agencies, are studying the connection between coastal aquifers and the offshore geology to better understand the processes and pathways of saltwater intrusion.
Posted: 2003-03-18

Primary Causes of Wetland Loss at Madison Bay, Terrebonne Parish, Louisiana - USGS Open File Report 03-060
The Gulf Coast Basin is a region where subsidence and fault activation are common around large, mature oil and gas fields even though moderately deep hydrocarbon production has generally been disregarded as the primary cause. This project will test the hypothesis that long-term, large-volume oil and gas production in the Gulf Coast Basin has resulted in land-surface subsidence and activation of deep-seated faults around some fields.
Posted: 2003-03-11

Natural Disasters - Forecasting Hurricane Occurrence
Events such as hurricanes, earthquakes, floods, tsunamis, volcanic eruptions, and tornadoes are natural disasters because they negatively impact society, and so they must be measured and understood in human-related terms. At the U.S. Geological Survey, we have developed a new method to examine fatality and dollar-loss data, and to make probabilistic estimates of the frequency and magnitude of future events. This information is vital to large sectors of society including disaster relief agencies and insurance companies.
Posted: 2003-03-02

Coral Mortality and African Dust
Why have coral reefs that are bathed in clear oceanic waters throughout much of the Caribbean suffered algal infestation, coral diseases, and near extinction of herbivorous sea urchins from the 1970s through early 1990s? The best known factors detrimental to coral reefs do not apply for many of the affected reefs where human population is low.
Posted: 2003-02-18

USGS Open-File Report 02-403, Contaminated Sediments Database for the Gulf of Maine, Title Page
Contaminated sediment database for the Gulf of Maine
Posted: 2003-02-06

USGS OFR 03-13 - Cascadia Tsunami Deposit Database
The Cascadia Tsunami Deposit Database contains data on the location and sedimentological properties of tsunami deposits found along the Cascadia margin. Data have been compiled from 52 studies, documenting 59 sites from northern California to Vancouver Island, British Columbia that contain known or potential tsunami deposits. Bibliographical references are provided for all sites included in the database. Cascadia tsunami deposits are usually seen as anomalous sand layers in coastal marsh or lake sediments. The studies cited in the database use numerous criteria based on sedimentary characteristics to distinguish tsunami deposits from sand layers deposited by other processes, such as river flooding and storm surges. Several studies cited in the database contain evidence for more than one tsunami at a site. Data categories include age, thickness, layering, grainsize, and other sedimentological characteristics of Cascadia tsunami deposits. The database documents the variability observed in tsunami deposits found along the Cascadia margin.
Posted: 2003-01-01

West-Central Florida Coastal Transect #1: Anclote Key - USGS Open File Report 99-505
This is the first of nine transect areas extending from the mainland of west-central Florida out to a depth of 26m. Data collected and presented includes sediment core data and side-scan sonar mapping of portions of the seafloor.
Posted: 2002-12-17

West-Central Florida Coastal Transect #2: Caladesi Island - Clearwater Beach Island - USGS Open File Report 99-506
This is the second of nine transect areas extending from the mainland of west-central Florida out to a depth of 26m. Data collected and presented includes sediment core data and side-scan sonar mapping of portions of the seafloor.
Posted: 2002-12-17

West-Central Florida Coastal Transect #3: Sand Key - USGS Open File Report 99-507
This is the third of nine transect areas extending from the mainland of west-central Florida out to a depth of 26m. Data collected and presented includes sediment core data and side-scan sonar mapping of portions of the seafloor.
Posted: 2002-12-17

West-Central Florida Coastal Transect #4: Indian Rocks Beach - USGS Open File Report 99-508
This is the fourth of nine transect areas extending from the mainland of west-central Florida out to a depth of 26m. Data collected and presented includes sediment core data and side-scan sonar mapping of portions of the seafloor.
Posted: 2002-12-17

West-Central Florida Coastal Transect #5: Treasure Island - Long Key - USGS Open File Report 99-509
This is the fifth of nine transect areas extending from the mainland of west-central Florida out to a depth of 26m. Data collected and presented includes sediment core data and side-scan sonar mapping of portions of the seafloor.
Posted: 2002-12-17

West-Central Florida Coastal Transect #6: Anna Maria Island - USGS Open File Report 99-510
This is the sixth of nine transect areas extending from the mainland of west-central Florida out to a depth of 26m. Data collected and presented includes sediment core data and side-scan sonar mapping of portions of the seafloor.
Posted: 2002-12-17

West-Central Florida Coastal Transect #7: Longboat Key - USGS Open File Report 99-511
This is the seventh of nine transect areas extending from the mainland of west-central Florida out to a depth of 26m. Data collected and presented includes sediment core data and side-scan sonar mapping of portions of the seafloor.
Posted: 2002-12-17

West-Central Florida Coastal Transect #8: Siesta Key - USGS Open File Report 99-512
This is the eighth of nine transect areas extending from the mainland of west-central Florida out to a depth of 26m. Data collected and presented includes sediment core data and side-scan sonar mapping of portions of the seafloor.
Posted: 2002-12-17

West-Central Florida Coastal Transect #9: Casey Key - USGS Open File Report 99-513
This is the ninth of nine transect areas extending from the mainland of west-central Florida out to a depth of 26m. Data collected and presented includes sediment core data and side-scan sonar mapping of portions of the seafloor.
Posted: 2002-12-17

U.S. Geological Survey Digital Data Series DDS-74
This data report presents long-term oceanographic observations made in western Massachusetts Bay at 42° 22.6' N., 70° 47.0' W. (Site A, 33 m water depth) from December 1989 through December 2000.
Posted: 2002-11-14

USGS - Lake Pontchartrain Geochemistry
Lake Pontchartrain, as the largest estuary in southern Louisiana, is an important recreational, commercial, and environmental resource for New Orleans, southeastern Louisiana, and the Nation. This publication is one of the products resulting from a 5-year cooperative program started in 1995 by the U.S. Geological Survey (http://coastal.er.usgs.gov/pontchartrain/). The program is focused on the geological framework and sedimentary processes of the Lake Pontchartrain Basin. Detailed documentation of selected aspects of the cooperative program are provided here.
Posted: 2002-10-16

Temporal changes in grain size and organic-mineral aggregatesin surficial sediments near the Massachusetts Bay Outfall Site, Title Page
This report summarizes the time-series analyses of grain size distribution and the abundance of organic-mineral aggregates in surface sediments at two monitoring stations near the Massachusetts Bay Outfall. Sediments, especially the finer fractions, can adsorb contaminants from sea water and exert a strong influence on the transport and ultimate distribution of contaminants. Therefore, it is important to know the extent to which sediment characteristics in Massachusetts Bay can change in response both to natural events, such as storms, and to the start of the new sewage outfall.
Posted: 2002-08-12

USGS Open File Report 01-123: Title page
USGS high resolution seismic data for northern North Carolina coastal system
Posted: 2002-07-11

Environmental Atlas of the Lake Pontchartrain Basin - USGS Open File Report 02-206
The Environmental Atlas of the Lake Pontchartrain Basin provides citizens, planners, managers, educators, scientists and other professionals with a multidisciplinary and integrated source of information on Lake Pontchartrain and its surrounding Basin.
Posted: 2002-05-14

WHFC DODS Data Server
The USGS WHFC time series data archive. Data sets are available in DODS format.
Posted: 2002-05-10

Red Tides in Western Gulf of Maine
Description of Research Project on Toxic "Red Tide" Populations in the Western Gulf of Maine: Sources, Transport, and Nutrient Environment
Posted: 2002-04-24

An Environmental and Geological Bibliography for Lake Pontchartrain, Louisiana
This presentation has been prepared both as a CD ROM and as a Web site for those with access to the Internet. It contains examples of illustrations that would not be available in normal local libraries, including a slide show designed to introduce Lake Pontchartrain to school and general audiences, satellite photographs, and downloadable environmental atlas pages. It also includes information on presentations and organizations involved in a series of scientific conferences on the environment of Lake Pontchartrain.
Posted: 2002-04-24

Massachusetts Bay Disposal Site Maps
The site lies 17 nautical miles east of the entrance to Boston Harbor and is adjacent to the boundary of the Stellwagen Bank National Marine Sanctuary. The area has had a complex history since the 1940's. The USGS/NOAA cooperative mapping program has acquired multibeam echo-sounder data in combination with video and still photos to describe the character of the sea floor and produce interpretive maps of the region. The maps were published in 1996, and are made available on this CD-ROM in Portable Document File, Encapsulated PostScript, and PostScript formats. Includes a gallery of bottom photographs.
Posted: 2002-04-24

Photographs of the seafloor in Western Massachusetts Bay
This report contains photographs and sediment sample analyses of the sea floor obtained at 142 sites in western Massachusetts during July 18-21, 1999. These photographs and samples provide information to assist interpretation of topography/shaded relief and backscatter intensity maps created using a multibeam echo sounder system) Collection of these photographs and samples was undertaken to map and describe the sea floor of Massachusetts Bay.
Posted: 2002-04-24

USGS Marine Sediment analysis procedures, database of East Coast sediment analyses, and georeferenced displays of the sediment types
This report (available as CDROM) contains full procedural instructions and methods for marine sediment analysis, including video tutorials and analytical software. It also contains the full database of sediment textural information of the USGS Woods Hole Field Center during about 38 years of operations, about 19,000 samples, beginning with the Continental Margin Program conducted with K.O. Emery and the Woods Hole Oceanographic Institution from 1962-1970. It also provides background and tools for visualizing and displaying sediment textural information using GIS. Truly a significant compilation of data, information, and instructional materials for Marine sedimentological studies.
Posted: 2002-04-24

Sidescan-sonar Imagery, Surface Sediment Samples, and Surficial Geologic Interpretation of the Southwestern Washington Inner Continental Shelf Based on Data Collected During Corliss Cruises 97007 and 98014
The sidescan-sonar imagery and surface sediment samples have been used to map the surficial geology of this storm-dominated inner-shelf environment. Includes data in GIS files.
Posted: 2002-04-24

Gulf of Mexico GLORIA Sidescan Sonar Geologic Interpretation
This (online) CD-ROM contains copies of the 250 m resolution GLORIA sidescan sonar mosaic for the Gulf of Mexico and its geologic interpretation. The imagery and interpretation have been archived here to preserve this legacy data set. The data are intended to be GIS-ready in as much as the data do not require any additional cleanup, formatting, renaming of fields or other "data work" to use the data in the GIS of choice.
Posted: 2002-04-24

Stellwagen Bank National Marine Sanctuary Region off Boston, Massachusetts, USGS National Geologic Studies of Benthic Habitats, Northeastern United States
USGS national geologic studies of benthic habitats, northern United States; Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts
Posted: 2002-04-24

Long Island Sound Environmental Studies
Reports and maps on acoustic and textural features of Long Island Sound bottom sediments; Sidescan-sonar imagery of areas off Hammonasset Beach state park, Norwalk, Niantic Bay, Milford, Fishers Island Sound, Falkner Island, New Haven, New London, CT, and Roanoke Pt., NY. Also, articles on a surficial sediment data, benthic communities and contaminants, and currents, and a bibliography.
Posted: 2002-04-23

Georeferenced Sea-Floor Mapping and Bottom Photography in Long Island Sound
Extensive information in 12 separate chapters on geology (including late-Pleistocene stratigraphy, and a free-air gravity anomaly map indicative deep substructure), surface sediments, organic carbon, benthic enviroments, megafaunal environments, contaminanats such as metals, mercury, and a bacterial indicator of human pollution; GIS referenced mapping data, and a collection of bottom photographs; Environmental changes 1940s to 1990s.
Posted: 2002-04-23

Lake Pontchartrain, LA, Geochemistry
Geology, geologic history, sediments, circulation, satellite imagery, of Lake Pontchartrain, LA, and a sediment database and geochemical assessment of the Lake.
Posted: 2002-04-23

SeaMARC 1A sidescan sonar mosaic, cores and depositional interpretation of the Mississippi Fan: ArcView GIS Data Release
An online CDROM contains a SeaMARC 1A sidescan sonar mosaic, cores, and a depositional interpretation of the Mississippi Fan, with an ArcView GIS Data Release. This study focused on a depositional lobe identified in previous GLORIA imagery. A channel and breached levee were studied to understand the processes by which sedimentation is redirected to a different part of the fan. The channel that originated at the breach in the levee of the main channel was traced to the distal edge of the Mississippi Fan where deposits associated with the end of this channel system were mapped.
Posted: 2002-04-23

Stellwagen Bank National Marine Sanctuary - off Boston MA - Sea Floor topographic contours maps and perspective views
A multibeam echo sounder aboard the Canadian Hydrographic Survey vessel Frederick G. Creed mapped the Stellwagen bank area (covering 1100 sq. nautical miles). Topographic contour maps and perspective maps -displayed as sun-illuminated seabed imagery - show sea floor topography (scale of 1:25,000) show the complex sea floor created by glacial erosion, deposition, and subsequent wave and current action. GIS data of the maps are included.
Posted: 2002-04-22

Hawaiian Islands GLORIA Imagery
GLORIA sidescan sonar imagery of the Hawaiian Islands, showing index map and downloadable quadrangles of sea-floor imagery.
Posted: 2002-04-03

U.S. Geological Survey Open-File Report 00-410
Sea floor features of the Stellwagen Bank National Marine Sanctuary region at a scale of 1:60,000. The maps depict topography, sun-illuminated (shaded relief) topographic imagery, and combined imagery of sun-illuminated sea floor topography and backscatter intensity
Posted: 2002-03-22

Subsurface Characterization of Selected Water Bodies in the St. Johns River Water Management District, Northeast Florida - USGS Open File Report 00-180
Florida is a karst (limestone) platform with abundant sinkholes, springs, and caverns. These surveys of sinkholes were conducted in the St. Johns River Water Management District in part to test the effectiveness of shallow-water marine geophysical techniques in determining the geomorphology of karst features.
Posted: 2002-01-18

U.S. Geological Survey Studies in the New York Bight
Since 1992, the U.S. Geological Survey`s Coastal and Marine Geology Program has been conducting studies offshore of New York designed to map and characterize the sea floor, to understand the transport and fate of sediments and associated pollutants, to map the inner shelf and sand deposits along the southern shore of Long Island, and to understand the recent geologic history. A long-term goal of these geological studies is to develop predictive models and geologic information to guide research and sustainable use of the coastal ocean.
Posted: 2001-12-14

West-Central Florida Coastal Studies
This project is a study of the west central Florida coast, conducted by the U.S. Geological Survey, University of South Florida, and Eckerd College. The study investigates the formation and maintanance of the barrier island system, as well as the geologic framework of the region.
Posted: 2001-10-31

A Marine GIS Library for Massachusetts Bay:
This CD-ROM contains information in a Geographic Information System (GIS) format (ESRI's ArcView) for the coastal region offshore of Boston, Massachusetts. This collection of coverages (here defined as ArcView shapefiles, grids and TIFs) is a beginning effort to develop a library of information in GIS format that can be referenced and shared by those working in, and seeking to understand, the Massachusetts Bay region. The CD-ROM was assembled at a workshop attended by an ad-hoc group representing federal and state government, industry and academia. This CD-ROM principally contains data on waste disposal sites and characteristics of the sea floor.
Posted: 2001-10-15

Coral Reefs in Honduras: Status after Hurricane Mitch - USGS Open File Report 01-133
In response to the devastation wrought by Hurricane Mitch in Honduras, the United States Geological Survey performed a study to determine the impact the storm had on the coral reef systems of Cayos Cochinos and Roatan, Honduras.
Posted: 2001-10-14

USGS EAST-COAST SEDIMENT ANALYSIS: PROCEDURES, DATABASE, AND GEOREFERENCED DISPLAYS
This CD-ROM contains descriptions of the field and laboratory methods used to collect and process sediment samples at the Woods Hole Field Center for Coastal and Marine Geology Program, USGS in Woods Hole, Massachusetts; an archive of digitally-available sediment data generated at this facility between 1962 and 2000; and data layers that can be viewed with geographic mapping tools.
Posted: 2001-10-12

U.S. Geological Survey Open-File Report 00-352
USGS Open-File Report 00-352; SeaMARC 1A sidescan sonar mosaic, cores and depositional interpretation of the Mississippi Fan: ArcView GIS Data Release
Posted: 2001-10-10

Photographs of the seafloor in Western Massachusetts Bay
This CD-ROM contains photographs and sediment sample analyses of the sea floor obtained at 142 sites in western Massachusetts Bay (Figure 1) during a research cruise (USGS cruise ISBL99024) aboard the Fishing Vessel (FV) Isabel S. (Figure 2) conducted July 18-21, 1999. These photographs and samples provide critical ground truth information for the interpretation of shaded relief and backscatter intensity maps created using data collected with a multibeam echo sounder system (Butman and others, in press, a, b, c; Valentine and others, in press, a, b, c). Collection of these photographs and samples was undertaken in support of a large project whose overall objective is to map and describe the sea floor of Massachusetts Bay.
Posted: 2001-10-10

U.S. Geological Survey Open-File Report 01-154
This Open-File Report contains bottom photographs that were collected in the early 1960's as part of the U. S. Geological Survey's Continental Margin Program. This joint program conducted with the USGS and the Woods Hole Oceanographic Institution conducted a geologic reconnaissance investigation of the continental shelf and slope off the Atlantic coast of the United States. As part of the program nearly 3800 locations were occupied that extended from the Canadian border to the southern tip of Florida. Bottom photography was completed at many of these stations in conjunction with sediment sampling. This report provides a digital release of the historical photos collected collected at these stations.
Posted: 2001-09-26

Surficial Geology and Distribution of Post-Impoundment Sediment in Las Vegas Bay, Lake Mead, U.S. Geological Open-File Report 01-070, Title Page
Sidescan sonar imagery and seismic-reflection profiles were collected in the northwestern part of Las Vegas Bay to map the distribution and volume of sediment that has accumulated in this part of Lake Mead since impoundment. The mapping suggests that three ephemeral streams are the primary source of this sediment, and of these, Las Vegas Wash is the largest. Two deltas off the mouth of Las Vegas Wash formed at different lake elevations and account for 41% of the total volume of post-impoundment sediment within the study area. Deltas off the other two washes (Gypsum and Government) account for only 6% of the total volume. The sediment beyond the front of the deltas is primarily mud, and it only occurs in valley floors, where it forms a flat-lying blanket that is mostly less than 1.5 m thick. Although a thin layer, the fine-grained sediment accounts for approximately 53% of the total post-impoundment sediment volume of 5.7 x 106 m3 that has accumulated in the study area. This sediment appears to have been transported several kilometers from the river sources by density flows.
Posted: 2001-09-07

Project PROBES (Puerto Rico Ocean Bottom Earthquake Survey), USGS Open-File Report 01-112
Project PROBES: Puerto Rico Ocean Bottom Earthquake Survey, U.S. Geological Survey Open-File Report 01-112
Posted: 2001-09-07

Remote Sensing Applications to Coral Reef Environments
The main goal of this project is to investigate and analyze remotely sensed image data to determine their applicability for detecting and mapping the location of live and dead reef areas, density of coral cover, and the major type of coral present, as well as algae, silt/mud, and carbonate sand cover.
Posted: 2001-09-04

U.S. Geological Survey Open-File Report 01-194
sediment core descriptions, x-radiographs, quantitative analytical data including water content, biogenic silica content, magnetic susceptibility, trace-metal concentrations, stable isotope ratios, organic carbon and nitrogen contents.
Posted: 2001-08-20

USGS - Atlantic Margin Offshore Sediments
Atlantic Margin Offshore Sediments, Cooperative Database and GIS Development
Posted: 2001-05-31

Mapping Coastal Change Hazards
An illustrated discussion of coastal change hazards and the work that the U.S. Geological Survey is doing to map and understand these hazards.
Posted: 2001-05-03

Coastal and Marine Geology Program Internet Map Server
This site serves Interactive maps and Geographic Information System (GIS) data from regions around the United States.
Posted: 2001-03-01

USGS Open-File Report 01-216, Bouguer Gravity Anomaly Map of the Dead Sea Fault System Title Page
Bouguer Gravity Anomaly Map of the Dead Sea Fault System, Jordan and Israel, U.S. Geological Survey Open-File Report 01-216
Posted: 2001-03-01

Global Inventory of Natural Gas Hydrate Occurance
This updated global inventory reports on natural gas hydrate recovered from 20 places worldwide and includes 79 places where the presence of gas hydrate has been inferred from geophysical, geochemical, or geological evidence.
Posted: 2001-01-09

USGS Project Information Sheet on Database of Contaminated Sediments for the Gulf of Maine
Heavy metals, pesticides, petroleum compounds, and nutrients measured in Gulf of Maine sediments originate from a variety of industrial, municipal, and domestic sources. A large dataset has been compiled on contaminant deposition in coastal sediments in order to quantify the research conducted over the last 40 years. The database is to be used by the USGS and other environmental managers to assess the environmental health of regional ecosystems, the transport paths of contaminants, and the ultimate fate of those contaminants. The current database is a compilation of organic, inorganic, and texture data, sample location information, and comments on the data quality for over 7,000 sediment samples. This information may be useful to researchers for intercomparisons of more recent data as well as policy makers for remediation and resource management of urban areas in the U.S.
Posted: 2000-10-24

Remote Video Monitoring
Remote Video Monitoring (RVM) systems provide a means of automatically acquiring video data from remote locations and returning them to a central laboratory computer for processing. This project makes use of RVM technology to monitor coastal change at locations in Florida, Massachusetts, Ohio, and Washington.
Posted: 2000-10-02

Tectonic Stress in the Pacific Northwest
Studies of the Cascadia Megathrust and Tectonic Stress in the Pacific Northwest
Posted: 2000-08-28

San Francisco Bay Earthquake Hazards Project
Earthquake Hazard Studies in the San Francisco Bay area, including monitoring of faults through seismic imaging and other geophysical studies.
Posted: 2000-07-25

GLORIA Imagery of the Exclusive Economic Zone of the USA
USGS research using GLORIA sidescan sonar to map the sea floor within the 200-mile wide Exclusive Economic Zone.
Posted: 2000-07-12

Gulf of Maine Information System - REDIMS
Research Environmental Data and Information Management System (REDIMS) for the Gulf of Maine: Information about data availability, numerical models, and REDIMS organization
Posted: 2000-05-11

Geologic Framework and Processes of the Lake Pontchartrain Basin
Lake Pontchartrain and adjacent lakes form one of the largest and most important estuaries in the Gulf Coast Region. The estuary drains the Pontchartrain Basin, an area of over 12,000 square kilometers situated on the eastern side of the Mississippi River delta plain. In Louisiana, nearly one-third of the state population lives within the 14 parishes of the Pontchartrain Basin.
Posted: 2000-03-15

Geologic Characterization of Lakes and Rivers of Northeast Florida
This study is part of a series of cooperative investigations conducted from 1993 to 1997 of inland and offshore waters and adjacent terrain throughout much of the St. Johns River Water Management District in northeastern Florida.
Posted: 2000-03-03

Hurricane Dennis Impact Studies
Includes pre/post-storm topographic change data derived from lidar mapping of the coast, as well as a set of oblique aerial photography of affected barrier islands on the North Carolina coast.
Posted: 2000-03-02

Seismic Stratigraphy of the Central Indian River Region - Open File Report 97-723
The geology and and hydrology of the central Indian River region along the central east coast of Florida is of critical concern to the St. Johns River Water Management District (SJRWMD). In this area the upward migration of deeper, more saline ground water in the lower Floridan aquifer to the shallower, fresher ground water of the upper Floridan aquifer and above, may impact the water quality of this resource.
Posted: 2000-02-29

East Gulf of Mexico Satellite Imagery
Satellite imagery of the eastern Gulf of Mexico, measuring sea surface temperature, reflectance, and altimetry, is taken, processed, and posted in online archives several times per day.
Posted: 2000-01-27

Florida Bay Satellite Imagery
Satellite imagery of Florida Bay, measuring sea surface temperature and reflectance, is taken, processed, and posted in online archives several times per day.
Posted: 2000-01-27

Observations of Impacts Caused by Hurricane Bonnie, August 1998, on the North Carolina Coast
A comparison of pre- and post-storm lidar topographic mapping of sections of the North Carolina coastline in response to Hurricane Bonnie.
Posted: 1999-12-08

El Niño/La Niña Coastal Comparison Photography - Oregon
La-Niña Mapping, May, 1999 - A Follow-on Experiment to the El-Niño Coastal Mapping, October 1997 / April 1998. These pages include pre/post-El-Niño rainfall data from the Laurel Mountain Monitoring Station, as well as a set of oblique aerial photography of portions of the Oregon coast.
Posted: 1999-12-08

Mamala Bay Dredge Disposal Studies
Fate of Dredge Disposal Material and Polluted Sediment, Offshore Honolulu, Hawaii
Posted: 1999-09-13

Duck '97 Fundamental Nearshore Processes Research
Predictive models of nearshore hydrodynamics, sediment transport, and beach evolution perform poorly. This effort will provide data sufficiently complete to support model development and verification.
Posted: 1999-08-23

National Coastal Assessment
The coastal margin of the US is among the most densely populated, developed, property valued, tax generating, income generating, and recreational valued region of the US. The dynamic natural processes and human-induced changes within this margin are poorly understood yet result in a highly mobile coastal zone that is subject to rapid (decadal or less) change. The goal of this project is to develop a GIS based inventory of scientific data including those variables known to contribute to coastal change.
Posted: 1999-05-14

Short and Long-Term Variability of Ebb-Tidal Deltas: Management Implications
With the increasing demand for suitable beach fill material, coastal planners often covet ebb-tidal shoal sands due to their (typically) coarse grain size and proximity to the beach. However, these sand bodies are rarely mined because of potential adverse effects on adjacent shorelines. The quantification of sediment volumes in an ebb-tidal delta over short and long time spans can be used to identify the system's natural variability.
Posted: 1999-03-18

FS 78-99: Contaminated-Sediment Database Development for Boston Harbor
USGS scientists undertook a pioneering effort to assemble a database from all available sources of information on chemicals in sediments of the Boston Harbor study area. The database was created to help understand the distribution of sediment contaminants and their sources, transport, and other processes and to support environmental management. The work involved collaboration with the U.S. Environmental Protection Agency (USEPA), the U.S. Army Corps of Engineers (USACOE), the Massachusetts Water Resources Authority, and other organizations. More than 100,000 sediment measurements from more than 3,000 samples were gleaned from 1,500 references.
Posted: 1999-03-05

Monterey Bay Marine Sanctuary Studies
The USGS Monterey Bay National Marine Sanctuary Project gathers, interprets, and distributes geologic information - tools necessary for sound resource protection and preservation of the federally established Monterey Bay National Marine Sanctuary. This web site provides access to that information.
Posted: 1999-02-22

Hydrocarbons in Monterey Bay Marine Sanctuary
Description and interpretation of hydrocarbons associated with fluid venting processes in Monterey Bay, California.
Posted: 1999-02-17

Coastal Erosion from El-Nino Winter Storms - Oblique Aerial Photography
USGS acquired baseline precision-located oblique still and video photography coverage of over 1000 km of coastline from the west coast of the U.S. in October, 1997, in anticipation of storms generated by the El-Niño warming of the Pacific Ocean. A follow-up mission was completed in April, 1998 after the storm season.
Posted: 1998-12-16

Antarctic Seismic Data Library System (SDLS)
The Antarctic Seismic Data Library System provides open access worldwide to Antarctic multichannel seismic-reflection data collected by many countries to study the structure of the earth's crust of Antarctica.
Posted: 1998-12-15

Coastal Erosion Along the U.S. West Coast During the 1997-98 El Nino: Expectations and Observations
This survey of 1200 km of representative reaches of the U.S. west coast both prior to and following the 1997-98 El Niño winter storms includes an interactive display of the mapped changes in coastal topography due to erosion, deposition, and landslides.
Posted: 1998-12-08

South Carolina Quaternary Geologic Framework
South Carolina's central coast and inner shelf from North Edisto River to Bull's Inlet has a complex Quaternary history of transgressive and regressive sedimentary sequences. These sequences were identified from 612 line-km of high-solution single-channel seismic profiles, side-scan sonar mosaics, 81 vibracores, ground penetrating radar, Amino acid racemization, and compilation of previous investigations.
Posted: 1998-11-20

Hurricane Bonnie Impact Studies
Hurricane Bonnie, a Category 3 storm, made landfall on August 26, 1998 in southern North Carolina near Cape Fear very close to landfall of both Hurricanes Bertha and Fran in 1996. These pages include pre/post-storm topographic change data derived from lidar mapping of the coast, as well as a set of oblique aerial photography of affected barrier islands on the North Carolina coast.
Posted: 1998-11-13

Hurricane Georges Coastal Impacts - Pre/Post-Storm Oblique Aerial Photography
This set of oblique aerial photogrpahy covers three areas impacted by Hurricane Georges in September, 1998 - Puerto Rico, the Florida Keys, and Gulf Coast barrier islands off Louisiana, Mississippi and Alabama.
Posted: 1998-10-14

USGS TerraWeb: San Fransisco Bay Landsat TM Main Page
Using satellite imagery for change detection and mapping in the San Francisco Bay Area. View full resolution Landsat TM satellite image mosaics of the bay area and learn how change mapping is done.
Posted: 1998-08-01

Bedform Sedimentology Studies
Information about ripples, dunes, and sedimentary structures including, explanatory text, computer-generated images and movies, photographs, and bedform-simulation software.
Posted: 1998-05-30

USGS TerraWeb: USGS: Seafloor Imagery of the Monterey Bay Continental Shelf
Information and imagery about the collection and image processing of sonar data to create a seafloor map of Monterey Bay. View images and maps hosted on the USGS TerraWeb Remote Sensing Web Server.
Posted: 1998-05-28

1982-83 El Niño Coastal Erosion: San Mateo County, CA
Coastal Erosion caused by El Nino storms in San Mateo County, California
Posted: 1998-05-06

A Giant Sediment Trap in the Florida Keys
Aerial photography, high resolution seismic profiling, coring and jet probing have revealed a large sediment-filled sinkhole in the Key Largo National Marine Sanctuary off Key Largo, Florida. The 600-m-diameter feature straddles coral reef and carbonate-sand facies and contains >55 m of marine lime sand and aragonite mud.
Posted: 1998-04-21

Hurricane Fran Impact Studies
On September 5, 1996, Hurricane Fran, a category 3 hurricane, made landfall on the North Carolina coast at Cape Fear. These pages include overwash data as well as a set of pre/post-storm oblique aerial photography of affected barrier islands on the North Carolina coast.
Posted: 1997-12-08

OFR 95-839: Sediment Chemistry and Biological Sampling off Honolulu
Cruise Report of mapping dredge disposal area off Honolulu, Hawaii
Posted: 1997-10-08

OFR 95-17: Acoustic Mapping of Disposal Sites off Honolulu
Final report in series of analyses studying environmental impact of dredge-material disposal offshore of Honolulu
Posted: 1997-10-08

Bottom Characteristics of an Ocean Disposal Site off Honolulu, Hawaii
ESRI Conference Presentation Using Time-based Navigational Trackline Data Managed by Routes and Events
Posted: 1997-10-01

OFR 95-527: Geochemistry of surface sediments in the Gulf of the Farallones, CA
Study to investigate the distribution, composition, and modern dispersal patterns of surface sediment on the continental shelf and slope of the Gulf of the Farallones
Posted: 1996-04-18

OFR 95-838: Moored Array Data Report for Monterey Bay, California
A study of the mechanisms that govern the circulation within and the transport of sediment and water through Monterey Submarine Canyon using moorings that measured current, temperature, salinity and water clarity
Posted: 1996-03-25

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