Coastal National Elevation Database (CoNED) Project - Topobathymetric Digital Elevation Model (TBDEM)

• Main Author: Earth Resources Observation And Science EROS Center
• Format: Dataset
• Language: unknown
• Published: U.S. Geological Survey 2017
• Subjects: CoNED; Pacific; north slope; Alaska
• Online Access: https://dx.doi.org/10.5066/f7z60mhj; https://www.usgs.gov/centers/eros/science/usgs-eros-archive-digital-elevation-coastal-national-elevation-database-coned

Physical processes in the coastal environments are controlled by the geomorphology of both over-the-land topography and underwater bathymetry; therefore, many applications of geospatial data in coastal environments require detailed knowledge of near-shore topography and bathymetry (topobathymetry). The Coastal National Elevation Database (CoNED) Project is a collaboration between the U.S. Geological Survey (USGS) Coastal and Marine Geology Program (CMGP), the National Geospatial Program (NGP), and the National Oceanic and Atmospheric Administration (NOAA) National Geophysical Data Center (NGDC). This coastal elevation database integrates disparate light detection and ranging (lidar) and bathymetric data sources into common databases aligned both vertically and horizontally to common reference systems. CoNED Project - topobathymetric digital elevation models (TBDEMs) provide a required seamless elevation product for science application studies such as shoreline delineation, coastal inundation mapping, sediment-transport, sea-level rise, storm surge models, tsunami impact assessment, and analysis of the impact of various climate change scenarios on coastal regions. CoNED Project elevation model development is focused in select regions along the U.S. coast, such as in the Northern Gulf of Mexico (NGOM), the Hurricane Sandy region, San Francisco Bay, the Pacific Northwest, and the North Slope of Alaska. The models vary in spatial resolution from 1 to 3 meters. The temporal range of the input bathymetry and topography data varies for most CoNED Project TBDEMs from the mid- to late-1900s to the present. The raster topobathymetric elevation product, the Federal Geographic Data Committee (FGDC) metadata, and a spatial referenced ESRI shapefile are contained in the downloadable bundle.