Coastal erosion is a national problem, with enormous economic and social consequences that affect all 30 states bordering the ocean or the Great Lakes. The geologic framework of the coastal region must be determined in order to understand the problems that must be addressed to maintain U.S. coastlines and to predict the effects of any mitigation or management plans.Other related USGS websites: El Niņo Home Page
Description: Beach erosion is a chronic problem along most open-ocean shores of the United States. As coastal populations continue to grow, and community infrastructures are threatened by erosion, there is increased demand for accurate information regarding past and present shoreline changes. There is also need for a comprehensive analysis of shoreline movement that is regionally consistent. To meet these national needs, the Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is conducting an analysis of historical shoreline changes along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii. A primary goal of this work is to develop standardized methods for mapping and analyzing shoreline movement so that internally consistent updates can periodically be made to record shoreline erosion and accretion. updated: 2004-07-21 pages include:
Description: In states bordering the Gulf of Mexico and the Atlantic Ocean, vast areas of coastal land have been destroyed since the mid 1800s as a result of natural processes and human activities. The physical factors that have the greatest influence on coastal land loss are reductions in sediment supply, relative sea level rise, and frequent storms, whereas the most important human activities are sediment excavation, river modification, and coastal construction. As a result of these agents and activities, coastal land loss is manifested most commonly as beach/bluff erosion and coastal submergence. updated: 2003-08-20 pages include:
Description: El Niņo information with links to a broad range of topics such as Floods, Landslides, Coastal Hazards, Climate, News Releases. updated: 2000-01-31 pages include:
These are results 1 through 3 of 3 matches.
Search all individual CMGP webpages for these terms - Erosion, Alaska: Search all webpages
U. S. Department of the Interior | U.S. Geological Survey
Movies
Maps
Data Sets