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Case Study Monterey Bay 1770-1990
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Coast Geodetic Survey
Nautical Charting
Bathymetry Mapping the Features
Case Study Monterey Bay 1770 - 1990
Bathymetry Mapping the Features
Monterey Bay Case Study - Photo #1.First recorded soundings in Monterey Bay.Surveyed by Don Miguel de Costanso - only 17 soundings
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Monterey Bay Case Study - Photo #2.Reconnaissance chart of California coast.Surveyed in 1852 by Captain James Alden on the C&GS; Ship ACTIVE
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Monterey Bay Case Study - Photo #3.Detail of Monterey Bay from 1852 C&GS; survey.Note 0/120 in center of bay.Indicates that bottom was not reached with 120 fathom leadline
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Monterey Bay Case Study - Photo #4.C&GS; chart of Monterey harbor published in 1852
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Monterey Bay Case Study - Photo #5.1897 contoured map of Monterey Submerged Valley.From George Davidson published paper in Proc. of Calif. Acad. of Sciences.Monterey Canyon was first noted in 1857 by James Alden of C&GS; Ship ACTIVE. Alden termed the
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Monterey Bay Case Study - Photo #6.Increasing detail of lower canyon including huge meander.From Submarine Canyons by Shepard and Dill
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Monterey Bay Case Study - Photo #7.Profiles showing comparison of Monterey Canyon and Grand Canyon.From Submarine Canyons by Shepard and Dill
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Monterey Bay Case Study - Photo #8.Upper Monterey Canyon as developed by multi-beam sounding systems.Surveyed by NOAA Ships DAVIDSON, DISCOVERER, and SURVEYOR.This was the smooth sheet for the first published NOAA multi-beam map
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Monterey Bay Case Study - Photo #9.3-D image of 9,000 square nautical miles.Shows Monterey Canyon, continental slope, Pioneer and Guide Seamounts, etc.This image was constructed from over 5,000,000 soundings
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