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Digital elevation model (DEM) of northern San Francisco Bay, California, created using bathymetry data collected between 1999 and 2016 (MLLW)

Dates

Publication Date
Start Date
1999
End Date
2016

Citation

Fregoso, T.A., Jaffe, B.E., and Foxgrover, A.C., 2020, High-resolution (1 m) digital elevation model (DEM) of San Francisco Bay, California, created using bathymetry data collected between 1999 and 2016: U.S. Geological Survey data release, https://doi.org/10.5066/P9TJTS8M.

Summary

A 1-m resolution, continuous surface, bathymetric digital elevation model (DEM) of the northern portion of San Francisco Bay, which includes San Pablo Bay, Carquinez Strait, and portions of Suisun Bay, was constructed from bathymetric surveys collected from 1999 to 2016. 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 [...]

Contacts

Attached Files

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NorthSFBay_DEM_Mosaic_MLLW_1m.jpg
“Bathymetric map of the northern portion of San Francisco Bay (MLLW)”
thumbnail 1.2 MB
NorthSFBay_DEM_Mosaic_MLLW_1m.aux.xml 2.5 KB
NorthSFBay_DEM_Mosaic_MLLW_1m.tfw 90 Bytes
1.37 GB
4.09 GB

Purpose

These data were compiled using new techniques to create a high-resolution DEM of the northern portion of San Francisco Bay, which will be used to document and assess changes in seafloor morphology. These data are intended for science researchers, students, policy makers, and the general public. These data can be used with geographic information systems (GIS) or other software to identify elevations. These data are not intended to be used for navigational purposes.

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