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Contact: Michael P Crane
USGS Eros Data Center, 47914 252nd Street, Sioux Falls, South Dakota 57198-9801
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Topobathymetric data (a topobathy) are a merged rendering of both topography (land elevation) and bathymetry (water depth) to provide a single product useful for inundation mapping and a variety of other applications. These data were developed using one topographic and two bathymetric datasets collected at different dates. Topography was obtained from the U.S. Geological Survey's National Elevation Dataset (NED). Bathymetry was provided by NOAA's GEOphysical DAta System (GEODAS). For several nearshore areas within the bay GEODAS data were replaced with high resolution bathymetry acquired by NASA's Experimental Advanced Airborne Research Lidar (EAARL).
Topobathy Data:
Use the USGS Topobathy data portal to download topobathymetric data for select sites.
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