Dataset description: Gridded bathymetric data from repeat surveys of south San Francisco Bay, California, 2023-2025

Repeat bathymetric surveys were performed between October 2023 and January 2025 (U.S. Geological Survey field activity number 2023-655-FA) in the shallows of south San Francisco Bay, California using either a 234 kHz SwathPlus interferometric sonar or 200 kHz single beam sonar system. Gridded bathymetric surfaces derived from the processed single beam sonar data were produced with using linear interpolation. The bathymetric datasets are provided in GeoTIFF format.

Version	1
Keywords	sonar methods, geospatial datasets, marine geophysics, bathymetry, bathymetry measurement
Data types	Single Beam, Interferometric
Format	GeoTIFF;
Amount	51.3 MB

Contacts

Contact	Samantha C McGill PCMSC_data@usgs.gov

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Location of materials and files

Public files	https://cmgds.marine.usgs.gov/data-releases/datarelease/10.5066-P14D723N/ https://doi.org/10.5066/P14D723N
Metadata	https://cmgds.marine.usgs.gov/metadata/pcmsc/DataReleases/CMGDS_DR_tool/DR_P14D723N/DMP23_bathymetric_surfaces_metadata.xml Outline - Questions and answers - Text - XML

Activities and equipment

Activity	Equipment
2023-655-FA	SWATH plus-M A Phase Measuring Bathymetric Sonar (PMBS) also known as an Interferometric Sidescan Sonar (ISS) with a frequency of 234.5 kHz.
2023-655-FA	Biosonics 200 kHz Fisheries single-beam echosounder