San Pablo Bay bathymetry: 1856 to 1983

This data release provides a series of six bathymetric digital elevation models (DEMs) of San Pablo Bay, CA generated from single-beam hydrographic surveys collected from 1856 to 1983. The DEMs were constructed based upon historical United States Coast and Geodetic Survey and National Ocean Service (NOS) surveys collected in 1856, 1887, 1898, 1922, 1951, and 1983. Depth soundings from the pre-1930s surveys were manually digitized and georeferenced while the later surveys were obtained in digital format, and all information compiled into a geographic information system (GIS). Using surface modeling software, the soundings from each survey were supplemented with hand-drawn contours and shorelines obtained from topographic sheets to generate bathymetric DEMs at a horizontal resolution of 25 m. The bathymetric DEMs are provided in GeoTIFF format, vertically referenced to the Mean Lower Low Water (MLLW) tidal epoch referenced at the time of data collection.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://ddi.doi.gov/usgs-data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier http://datainventory.doi.gov/id/dataset/usgs-667605fad34e3cf50fef28fa
metadata_type geospatial
modified 2025-07-30T00:00:00Z
old-spatial -122.200668, 37.9178559, -122.590411, 38.1882142
publisher U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash a4dab26d4a169c0e4c38584ac5a8ba65cd0b429a082cbe229c2a89d8d10b64ee
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-122.200668, 37.9178559], [-122.200668, 38.1882142], [ -122.590411, 38.1882142], [ -122.590411, 37.9178559], [-122.200668, 37.9178559]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • bathymetry
  • bathymetry-and-elevation
  • central-san-francisco-bay
  • digital-elevation-model-dem
  • digital-elevation-models
  • elevation
  • geographic-information-systems
  • geographic-information-systems-gis
  • geospatial-datasets
  • global-positioning-system-gps-observations
  • gps-measurement
  • inlandwaters
  • san-francisco-bay
  • san-pablo-bay
  • single-beam-echo-sounder
  • south-san-francisco-bay
  • suisun-bay
  • topographic-mapping
  • topography
  • usgs-667605fad34e3cf50fef28fa
isopen False
license_id notspecified
license_title License not specified
maintainer PCMSC Science Data Coordinator
maintainer_email pcmsc_data@usgs.gov
metadata_created 2025-09-23T15:08:44.714104
metadata_modified 2025-09-23T15:08:44.714111
notes This data release provides a series of six bathymetric digital elevation models (DEMs) of San Pablo Bay, CA generated from single-beam hydrographic surveys collected from 1856 to 1983. The DEMs were constructed based upon historical United States Coast and Geodetic Survey and National Ocean Service (NOS) surveys collected in 1856, 1887, 1898, 1922, 1951, and 1983. Depth soundings from the pre-1930s surveys were manually digitized and georeferenced while the later surveys were obtained in digital format, and all information compiled into a geographic information system (GIS). Using surface modeling software, the soundings from each survey were supplemented with hand-drawn contours and shorelines obtained from topographic sheets to generate bathymetric DEMs at a horizontal resolution of 25 m. The bathymetric DEMs are provided in GeoTIFF format, vertically referenced to the Mean Lower Low Water (MLLW) tidal epoch referenced at the time of data collection.
num_resources 2
num_tags 28
title San Pablo Bay bathymetry: 1856 to 1983