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ID J-1-99-SF
Abstract Chief Scientists: John Chin, Paul Carlson. Seismic and Sidescan Sonar and Video data (Geopulse, sidescansonar, underwatertelevision, underwatercamera) of field activity J-1-99-SF in Central San Francisco Bay, CA from 01/11/1999 to 01/20/1999
Project/Theme Applied Sediment Transport
National Plan Environment
Chief Scientist John Chin
Paul Carlson
Activity Type Seismic and Sidescan Sonar and Video
Platform David Johnston
Area of Operation Central San Francisco Bay, CA, San Francisco Bay, CA
Bounding Coordinates
37.92942
-122.47744    -122.19342
37.50867
Dates 01/11/1999 (JD 011) to 01/20/1999 (JD 020)
Analog Materials list
Crew
John Chin Chief Scientist, USGS Western Region
Paul Carlson Chief Scientist, USGS Western Region
Mike Boyle Electronic Tech, USGS Western Region
Hank Chezar Video Specialist, USGS Western Region
Gordon Smith Captain, UCSC
Equipment Used
Geopulse
sidescansonar
underwatertelevision
underwatercamera
Purpose
Obtain acoustic & video imagery of sand shoal regions and rock pinnacles
Information to be Derived
Morphology of the sand waves and shoals and of the rock pinnacles and 
surrounding sediments.
Summary
Good imagery across sand waves, dredge area and hazardous rock pinnacles.
Notes
San Francisco Bay Pollutant and Sediment Transport.

From "Western Region coastal and Marine Geology Bulletin",
Publisher: Mike Carr, Editor: Anne Gartner, February 12, 1999:

CRUISE NEWS: R/V DAVID JOHNSTON
In mid-January 1999, the David Johnston returned to central San
Francisco Bay for follow-up studies of three bedrock knobs that
rise above the unconsolidated sediment to water depths of <39'
(LLW).
The rocks are within the general westbound traffic zone and about
200 m from the Deep Water Traffic Lane where oil tankers and cargo
vessels with drafts of 50' routinely enter the bay; thus a
potential catastrophe awaits.
The rocks have been lowered by blasting in the past (late 1800s and
early 1900s) and the Harbor Safety committee is meeting frequently
to determine how to tackle this problem under present rules and
regulations.
At their invitation, John Chin and Paul Carlson have attended
several of the meetings.
We (Mike Boyle, Paul Carlson, John Chin, and boat skipper Gordon
Smith) ran very successful hi-res seismic lines and a few side-scan
sonar lines across the rocks and over some of the sand shoal areas.

Hank Chezar joined us for one day and we obtained some good video
over two of the rocks and over one of the sand shoals.
Fortunately, we had our camera deployment before the rains came to
muddy up the water.
The accompanying photo shows Hank testing the camera system before
we left Pier 39 in San Francisco.
Got Help? For J-1-99-SF, we would appreciate any information on -- contract, days at sea, dive count, funding, information specialist, kms of navigation, NGDC Info, organization, owner, ports, project number, publications, scanned materials, seismic description, station count, station description, submersible, tabulated info.
Type Webpage KMZ Arc         Metadata        
Imagery data      
Metadata data     txt  data  FAQ  xml
Navigation data nav    
Seismic data geopulse.seis    
Times   062.times    

J-1-99-SF location map of where navigation 

equipment operated
J-1-99-SF location map of where navigation 

equipment operated

 
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