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Recent News - stories from the last 14 days.

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USGS scientists publish new study on modeling barrier island response to hurricane storm surge under future sea level rise

SPCMSC researchers Davina Passeri, Nathaniel Plant and Joe Long, along with colleagues from Louisiana State University, have published a journal article entitled "Dynamic modeling of barrier island response to hurricane storm surge under future sea level rise" (https://link.springer.com/article/10.1007/s10584-018-2245-8) in Climatic Change. The study uses the process-based model XBeach to examine the morphodynamic response of Dauphin Island, Alabama, to storm surge from hurricanes Ivan (2004) and Katrina (2005) under present-day conditions and projections of future sea level rise. Results illustrate the triple-coupled interactions and feedbacks between sea level, storms and morphology, and improve the understanding of longer-term barrier island evolution in the context of storm events.

posted: 2018-08-09



Small gathering of people sitting in chairs and at tables in a multi-purpose room, with one person showing slides at the front of the room.New instruments installed to measure Arctic coastal erosion

In July 2018, three USGS Pacific Coastal and Marine Science Center researchers installed thermometers, video cameras, a seismometer, and a wave gauge to measure permafrost temperatures and bluff erosion on the Arctic Ocean coast of Barter Island, Alaska. Combined data from these instruments will be used to test the possibility of remotely estimating wave heights without installing and maintaining wave gauges in the ocean. USGS oceanographer Shawn Harrison devised and lead the installation of video cameras and seismometer. Coastal erosion along the Arctic coast of Alaska threatens Native Alaskan villages, sensitive ecosystems, energy- and defense-related infrastructure, and large tracts of Native Alaskan, State, and Federally managed land. The scientists also hosted a community outreach event to present results from earlier studies and to discuss their ongoing research. Government officials, residents, and non-residents attended the event. PCMSC researchers particularly appreciated the local coastal information, insights, and concerns provided by long-time community residents.
View the images from the video cameras, and view photos of the installation process for the cameras and the seismometer.
Contact: Li Erikson, lerikson@usgs.gov, 831-460-7418

posted: 2018-08-07



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