Collecting Bathymetric Data in San Francisco Bay
Detailed Description
USGS scientists Patrick Barnard (left) and Jeff Hansen navigate personal watercraft equipped with GPS and echo sounders through the waters of San Francisco Bay. They are collecting bathymetric, or depth, information in order to create maps of the bottom of the Bay. The maps will be used to determine how the morphology or shape of the Bay floor changes through time.
Sources/Usage
Public Domain.
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