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Metadata
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ID
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M-1-96-MB
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Abstract
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Chief Scientists: Steve Eittriem, Andy Stevenson.
Geophysical data (Kleinsidescan, Geopulse, ADP, GPS, mudseis,
mudscan) of field activity M-1-96-MB in northern Monterey Bay
Sanctuary continental shelf, California from 05/26/1996 to
06/02/1996
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Project/Theme
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Monterey Bay National Marine Sanctuary
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National Plan
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Environment
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Chief Scientist
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Steve Eittriem
Andy Stevenson
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Activity Type
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Geophysical
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Platform
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McArthur
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Area of Operation
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northern Monterey Bay Sanctuary continental shelf, California
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Location map
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Bounding Coordinates
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37.21393
-122.71731 -121.85370
36.80203
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Dates
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05/26/1996 (JD 147) to 06/02/1996 (JD 154)
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Analog Materials
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list
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Index map
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Crew
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Steve Eittriem
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Chief Scientist, USGS Western Region
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Andy Stevenson
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Chief Scientist, USGS Western Region
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Larry Kooker
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Electronics Technician, USGS Western Region
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John Gann
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Electronics Technician, USGS Western Region
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Kaye Kinoshita
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Watchstander, USGS Western Region
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Jim Vaughan
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Watchstander, USGS Western Region
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Marjorie Medrano
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Watchstander, USGS Western Region
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Pete Galanis
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Watchstander, USGS Western Region
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Equipment Used
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Kleinsidescan
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Geopulse
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ADP
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GPS
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mudseis
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mudscan
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Purpose
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Map seafloor geology and shallow subsurface stratigraphy of Monterey Bay Sanctuary
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continental shelf to better understand the different benthic environments of the
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Sanctuary; attempt to define vertical profiles of current field in upper 100-m of
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the water column using acoustic doppler system.
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Information to be Derived
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Bottom type (sand, mud, bedrock, bedrock charactistics, active sediment
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transport indications, biological seep communities or encrustations);
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Subbottom seismic stratigraphy and structure (stratigraphic style,
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paleochanneling and terrace formation, fault activity, tectonic uplift or
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subsidence, geologic history)
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Summary
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Seafloor geologic mapping using sonar side-scan (acoustic backscatter)
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imagery of the bottom. Shallow subbottom profiling using a 1-kHz sound
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source which gives information on stratigraphy to depths of about 50 meters.
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Acoustic backscatter imagery, sub-bottom shallow seismic stratigraphy in SEG-Y
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format, Acoustic Doppler Current Profiler data.
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Notes
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Associated activities:
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M-1-93-MB
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J-1-94-MB
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J-2-95-MB
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J-6-95-MB
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M-2-95-MB
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P-1-95-MB
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P-3-95-MB
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R-1-95-MB
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M-1-96-MB
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J-1-97-MB
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J-3-97-MB
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A-4-98-MB
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J-3-98-MB
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J-4-98-MB
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Interpreted seafloor geologic map of Monterey Bay National Marine
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Sanctuary continental shelf; Maps of bathymetry and distribution of seismic
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stratigraphic units; Published studies of past geologic environment of
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continental shelf.
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An entry in "Western Region Marine and Coastal Surveys Bulletin",
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June 7, 1996:
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MACARTHUR CRUISE
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Our weather-worn McArthur scientific crew returned to terra firma
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on Sunday, having completed another 400 square km of mapping on the outer
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shelf off Santa Cruz and Ano Nuevo. The outer shelf off Ano Nuevo was declared
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by side-scan sonar watchstanders Galanis, Kinoshita, Medrano, Stevenson,
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Eittreim, and Lewis to be perhaps the most boring piece of seafloor on the face
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of the earth, with the possible exception of the deep Bering Sea. Now that it is
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done, at least we'll never have to return again. Moderately high winds kept the
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lively ship McArthur true to her reputation, although extraordinary skill in
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line planning kept her moving either dead down-wind, or upwind, keeping the
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rolls to a minimum. 400-m line spacing with the Klein 100 kHz side-scan and
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1-kHz Geopulse high-resolution gives us a nearly complete and dense coverage
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of the continental shelf of Monterey Bay proper. Last minute snafus in
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scheduling nearly resulted in abandonment of the cruise, but our Marine Facility
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folks pulled it out of the fire for us with some extraordinarily creative and
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flexible manpower deployments, including Gann and Kooker onboard as technical
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brainpower. Thanks to NOAA's PR savvy, the cruise was heavy with lots of
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outreachy stuff: press conferences onboard on May 28 and June 2, resulting in
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several TV news program scoops and articles in the SC Sentinel (front page), the
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Monterey Herald, and other newspapers.
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Publications
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Eittreim, Stephen L., and Noble, Marlene, editors, 2002, Seafloor geology and
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natural environment of the Monterey Bay National Marine Sanctuary: Marine Geology, v
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. 181
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http://www.sciencedirect.com/
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Journals > m > Marine Geology > Volumes 181 - 190 > Volume 181, Issues 1-3
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Wong, F.L., and Eittreim, S.L., 2001, Continental Shelf GIS for the Monterey
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Bay National Marine Sanctuary: U.S. Geological Survey Open-file Report 01-179,
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1 CDROM,
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http://geopubs.wr.usgs.gov/
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open-file/of01-179/
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Got Help?
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For M-1-96-MB, 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, scanned materials, seismic description, station count, station description, submersible, tabulated info.
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