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    • April 2018 bathymetry collected near Dumbarton Bridge in south San Francisco Bay, California

    Metadata Updated: January 22, 2026

    Bathymetric survey data were collected in April 2018 just south of Dumbarton Bridge in south San Francisco Bay, California. A portion of the main channel was surveyed using an interferometric sidescan sonar system following procedures detailed in Foxgrover and others, 2011. The bathymetry is provided as a 1-m resolution raster in geoTIFF format, referenced to the vertical datum of mean lower low water (MLLW). To convert to the North American Vertical Datum of 1988 (NAVD88), subtract a static offset of 0.37 m (datum conversions provided in Foxgrover and others, 2007).

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date January 13, 2026
    Metadata Updated Date January 22, 2026

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 13, 2026
    Metadata Updated Date January 22, 2026
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/USGS_f9300c29-a8ac-4556-b287-98c9ab308878
    Data Last Modified 2022-07-01T00:00:00Z
    Category geospatial
    Public Access Level public
    Bureau Code 010:12
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://ddi.doi.gov/usgs-data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Datagov Dedupe Retained 20260122132010
    Harvest Object Id c5c2d5a1-097d-49cd-921e-22d10bf82423
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": -122.119591, 37.498714, -122.119591, 37.505166, -122.111977, 37.505166, -122.111977, 37.498714, -122.119591, 37.498714}
    Source Datajson Identifier True
    Source Hash b36b7bcd07b821d3f8d96cf3cdd7b479df07b585e1c212e3bb4e0b62159bba2b
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -122.119591, 37.498714, -122.119591, 37.505166, -122.111977, 37.505166, -122.111977, 37.498714, -122.119591, 37.498714}

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