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File:Scientific Investigations Map 2917.jpg

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Summary

Description
English: This poster shows views of the sea floor in west-central San Francisco Bay around Alcatraz and Angel Islands, underneath the Golden Gate Bridge, and through its entrance from the Pacific Ocean. The sea floor is portrayed as a shaded relief surface generated from the multibeam data color-coded for depth from light blues for the shallowest values to purples for the deepest. The land regions are portrayed by USGS digital orthophotographs (DOQs) overlaid on USGS digital elevation models (DEMs). The water depths have a 4x vertical exaggeration while the land areas have a 2x vertical exaggeration.
Date
Source https://pubs.er.usgs.gov/publication/sim2917
Author

Credit: U.S. Geological Survey Department of the Interior/USGS

Peter Dartnell ORCID , Patrick L. Barnard , John L. Chin , Daniel Hanes , Rikk G. Kvitek , Pat J. Iampietro , and James V. Gardner

Licensing

Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

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1 January 2006

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Date/TimeThumbnailDimensionsUserComment
current19:18, 28 November 2017Thumbnail for version as of 19:18, 28 November 20171,849 × 793 (312 KB)Hadron137User created page with UploadWizard

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