Suisun Bay bathymetric change: 1866 to 1990
This data release provides a series of four bathymetric change grids generated from historical bathymetric surveys collected in Suisun Bay, CA from the 1866 to 1990. The National Ocean Service (NOS) and its predecessor, the United States Coast and Geodetic Survey, collected hydrographic surveys in 1866, 1886, 1923, 1941, and 1990. Surface modeling software was used to generate bathymetric DEMs of each of these surveys. The bathymetric DEMs were then adjusted to account for gridding interpolation bias and changes in sea level through time. The adjusted DEMs for consecutive surveys were then differenced to reveal the amount of sediment erosion and deposition and changes from human activities (e.g., dredging, sand mining) that occurred through time. These bathymetric change grids are provided here in GeoTIFF format with a horizontal resolution of 25 meters and can be used to quantify net sediment volume change and rates of change throughout the bay.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "PCMSC Science Data Coordinator",
"@type": "vcard:Contact",
"hasEmail": "mailto:pcmsc_data@usgs.gov"
}
|
| description | This data release provides a series of four bathymetric change grids generated from historical bathymetric surveys collected in Suisun Bay, CA from the 1866 to 1990. The National Ocean Service (NOS) and its predecessor, the United States Coast and Geodetic Survey, collected hydrographic surveys in 1866, 1886, 1923, 1941, and 1990. Surface modeling software was used to generate bathymetric DEMs of each of these surveys. The bathymetric DEMs were then adjusted to account for gridding interpolation bias and changes in sea level through time. The adjusted DEMs for consecutive surveys were then differenced to reveal the amount of sediment erosion and deposition and changes from human activities (e.g., dredging, sand mining) that occurred through time. These bathymetric change grids are provided here in GeoTIFF format with a horizontal resolution of 25 meters and can be used to quantify net sediment volume change and rates of change throughout the bay. |
| distribution |
[
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{
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|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_667605d7d34e3cf50fef28f8 |
| keyword |
[
"Bathymetry and Elevation",
"Central San Francisco Bay",
"Digital Elevation Model (DEM)",
"GPS measurement",
"Global Positioning System (GPS) observations",
"San Francisco Bay",
"San Pablo Bay",
"South San Francisco Bay",
"Suisun Bay",
"USGS:667605d7d34e3cf50fef28f8",
"bathymetry",
"digital elevation models",
"elevation",
"geographic information systems",
"geographic information systems (GIS)",
"geospatial datasets",
"inlandWaters",
"single-beam echo sounder",
"topographic mapping",
"topography"
]
|
| modified | 2025-07-30T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -121.747071, 38.0099650, -122.270970, 38.1721906 |
| theme |
[
"Geospatial"
]
|
| title | Suisun Bay bathymetric change: 1866 to 1990 |
