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USGS Coastal and Marine Geology Program

USGS Coastal and Marine Geology Program > National Assessment of Coastal Change Hazards

National Assessment of Coastal Change Hazards


Eroding sea cliffs along the Pacifica coast just south of San Francisco, CA during the 1997-98 El Nino winter.

Coastlines are constantly changing landscapes that pose fascinating science questions as well as unique management challenges. The National Assessment of Coastal Change Hazards (NACCH) provides robust scientific findings that help to identify areas that are most vulnerable to diverse coastal change hazards including beach and dune erosion, long-term shoreline change, and sea-level rise. Through extensive observation, modeling and prediction of these processes, scientists gauge how U.S. shores have historically shifted, and how past changes will affect their vulnerability to future hazards. Read more in the Project Overview.

News & Events

Tropical Storm Hermine: The storm team is responding to TS Hermine. Activities include probabilities of coastal change (available from the Coastal Change Hazards Portal), total water levels, as well as ground surveys of Pinellas County beaches.

Climate Change Complicates Predictions Of Damage From Big Surf

High waves during storm? New forecast model tries to predict

Forecasting Coastal Change Prior to Hurricanes Takes Leap Forward

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Page Last Modified: August 31, 2016 @ 06:06 PM (JSG)