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Digital elevation model (DEM) of central San Francisco Bay, California, created using bathymetry data collected between 2009 and 2020 (NAVD88)

A 1-m resolution, continuous surface, bathymetric digital elevation model (DEM) of the central portion of San Francisco Bay, was constructed from bathymetric surveys collected from 2005 to 2020. In 2014 and 2015 the California Ocean Protection Council (OPC) contracted the collection of bathymetric surveys of large portions of San Francisco Bay. A total of 93 surveys were collected using a combination of multibeam and interferometric side-scan sonar systems. Of those 93 surveys, 75 consist of swaths of data ranging from 18- to just over 100-meters wide. These swaths were separated by data gaps ranging from 10- to just over 300-meters wide. The no-data areas required interpolation to create a continuous surface. The OPC surveys were combined with additional datasets collected by the United States Geological Survey (USGS), National Oceanic and Atmospheric Administration (NOAA), NOAA’s National Ocean Service (NOS), and the United States Army Corps of Engineers (USACE) to create a continuous, high-resolution digital elevation model (DEM). The creation of this DEM refines techniques developed by the USGS to create DEMs from historic bathymetric data, and allow for the creation of a modern-day bathymetric surface that can be compared to earlier surveys to delineate regions of sediment erosion and deposition.

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Author(s) Theresa Fregoso orcid, Bruce E Jaffe orcid, Amy Foxgrover orcid
Publication Date 2021-07-08
Beginning Date of Data 2009
Ending Date of Data 2020
Data Contact
DOI https://doi.org/10.5066/P9TJTS8M
Citation Fregoso, T., Jaffe, B.E., and Foxgrover, A., 2021, Digital elevation model (DEM) of central San Francisco Bay, California, created using bathymetry data collected between 2009 and 2020 (NAVD88): U.S. Geological Survey data release, https://doi.org/10.5066/P9TJTS8M.
Metadata Contact
Metadata Date 2021-07-08
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License http://www.usa.gov/publicdomain/label/1.0/
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Harvest Source: Coastal and Marine Geoscience Data System
Harvest Date: 2024-12-24T07:32:52.722Z