Alabama: bias feature containing proxy-datum bias information used in shoreline change rate calculations
The U.S. Geological Survey (USGS) maintains shoreline positions for the United States coasts from various historical sources, such as aerial photographs or topographic surveys, and contemporary sources, such as lidar-point clouds and digital elevation models. Shorelines are compiled in a Geographic Information System (GIS) and analyzed in the USGS Digital Shoreline Analysis System (DSAS) software to calculate rates of change. Keeping a record of historical shoreline positions is an effective method to monitor change over time, enabling scientists to identify areas most susceptible to erosion or accretion. These data can help coastal managers understand which areas of the coast are vulnerable to change. The shoreline positions and shoreline change rates provide actionable information to homeowners, coastal communities, and managers of public and private properties to improve resiliency for coastal hazards.
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "Meredith G. Kratzmann", "@type": "vcard:Contact", "hasEmail": "mailto:mkratzmann@contractor.usgs.gov" } |
| description | The U.S. Geological Survey (USGS) maintains shoreline positions for the United States coasts from various historical sources, such as aerial photographs or topographic surveys, and contemporary sources, such as lidar-point clouds and digital elevation models. Shorelines are compiled in a Geographic Information System (GIS) and analyzed in the USGS Digital Shoreline Analysis System (DSAS) software to calculate rates of change. Keeping a record of historical shoreline positions is an effective method to monitor change over time, enabling scientists to identify areas most susceptible to erosion or accretion. These data can help coastal managers understand which areas of the coast are vulnerable to change. The shoreline positions and shoreline change rates provide actionable information to homeowners, coastal communities, and managers of public and private properties to improve resiliency for coastal hazards. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.5066/P1JE2KSO", "mediaType": "application/http", "description": "Landing page for access to the data" }, { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "XML", "mediaType": "text/xml", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.69e2b0f0b66b0195694c11f1.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_69e2b0f0b66b0195694c11f1 |
| keyword |
[ "Bias", "Bias feature", "Bon Secour National Wildlife Refuge", "CMGP", "Coastal and Marine Geology Program", "DSAS", "Dauphin Island", "Digital Shoreline Analysis System", "Fort Morgan Alabama", "Gulf Coast", "Gulf Shores", "HWL", "High Water Line", "LRR", "Linear Regression Rate", "MHW", "Mean High Water", "North America", "PDB", "Shoreline change", "State of Alabama", "U.S. Geological Survey", "USGS", "USGS:69e2b0f0b66b0195694c11f1", "United States of America", "WHCMSC", "Woods Hole Coastal and Marine Science Center", "coastal processes", "environment", "geoscientificInformation", "geospatial datasets", "oceans", "proxy-datum bias" ] |
| modified | 2026-06-22T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -88.350587, 30.216387, -87.517445, 30.278659 |
| theme |
[ "geospatial" ] |
| title | Alabama: bias feature containing proxy-datum bias information used in shoreline change rate calculations |
