San Francisco Bay


[San Francisco Index Map]
 [Shaded Relief]  False sun illumination of bathymetry and land DTM
 [Backscatter]  Backscatter from multibeam and land DTM.
   Quicktime movie flying through the central San Francisco Bay region.
 [Perspective View]  Shaded relief oblique view of bathymetry and land DTM looking from downtown San Francisco, north past Angel Island, towards Tiburon.
 [Stereo Relief]  3-D stereo image of central San Francisco Bay (use 3-D glasses).
 [Data Download] Download Arc/Info Export (.e00) files and full resolution TIFF images.

 To support the multi-disciplinary San Francisco Bay Project, the sea floor of the west-central San Francisco Bay was mapped using the high-resolution multibeam system. The resulting images provide an unprecedented view of the various bedform fields in west-central San Francisco Bay, many unknown until this survey.

Our specific tasks were to:

  • map the western section of west-central San Francisco Bay
  • determine the distribution of bedforms (marine equivalent of sand dunes)
  • image the waste disposal site just south of Alcatraz Island
  • determine the heights and volumes of rock outcrops that lay directly in the path of ocean tankers that transit San Francisco Bay heading for the Oakland marine terminals.

This mapping effort was a cooperative project with the National Oceanic and Atmospheric Administration (NOAA) who provided raw multibeam data from a vital area immediately east of Alcatraz Island.


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