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Access USGS - San Francisco Bay and Delta

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San Francisco Bay Bathymetry

DOWNLOAD GRIDS

LOCATION & DATE CELL SIZE =
100m X 100m
CELL SIZE =
50m X 50m
CELL SIZE =
25m X 25m
Full Bay – 1950-199? FullBay100.tar.gz (496 kb)    
San Pablo Bay 1983   SPBay1983_50.zip  
San Pablo Bay 1951   SPBay1951_50.gz  
San Pablo Bay 1922   SPBay1922_50.gz  
San Pablo Bay 1898   SPBay1898_50.gz  
San Pablo Bay 1887   SPBay1887_50.gz  
San Pablo Bay 1856   SPBay1856_50.gz  
South Bay 1858   SouthBay1858_50.zip  
South Bay 1931   SouthBay1931_50.zip  
South Bay 1983   SouthBay1983_50.zip  
Suisun Bay 1990     SuisunBay1990_25.zip
Central Bay 1979     CentralBay_25.zip

GRID FILE FORMAT

Two files are contained in each compressed file – [name].dat (grid of depth values) and [name].prj (map projection). The files were generated using the ArcInfo command GRIDASCII and can be imported using the inverse command ASCIIGRID or the depths can be read by user written code. The first five lines describe the size of the grid, null value and define the lower left world coordinate of the grid.

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URL:http://sfbay.wr.usgs.gov/sediment/sfbay/downloads.html
Page Last Modified: Monday, 10-Dec-2012 15:25:42 PST