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ID P-1-95-MB
Abstract Chief Scientist: Steve Eittreim. Data (multibeam, GPS, CTDmeter) of field activity P-1-95-MB in Monterey Bay from 07/29/1995 to 08/02/1995
Project/Theme Monterey Bay National Marine Sanctuary
National Plan Environment
Chief Scientist Steve Eittreim
Platform Pacific Hunter
Area of Operation Monterey Bay, Monterey Bay, CA
Bounding Coordinates
36.77509
-121.99269    -121.82182
36.60737
Dates 07/29/1995 (JD 210) to 08/02/1995 (JD 214)
Analog Materials list
Crew
Steve Eittreim Chief Scientist, USGS Western Region
Equipment Used
multibeam
GPS
CTDmeter
Purpose
Seafloor mapping in the offshore Ft Ord region
to characterize the nature of the seafloor morphology and geology
Information to be Derived
2-m bathymetry and acoustic imagery
Summary
175 square kilometers were swath-mapped covering most of the southern
Monterey Bay shelf with the exception of the outer shelf beyond 95 m water
depths; coverage included the shelf northwest of Monterey Peninsula. The data is
hampered by some noise problems due to rough weather and to patchiness in water
velocity distributions and to wave motion of the transducer vertically through
the thermocline.  2-meter, shaded-relief contour maps at 1:5000 have been
produced and the backscatter imagery maps are still in the data-processing
stage.
Notes
Associated activities:

  M-1-93-MB
  J-1-94-MB
  J-2-95-MB   J-6-95-MB   M-2-95-MB   P-1-95-MB   P-3-95-MB   R-1-95-MB
  M-1-96-MB
  J-1-97-MB   J-3-97-MB
  A-4-98-MB   J-3-98-MB   J-4-98-MB
(from USGS Bulletin 8/18/95) The Monterey Bay National Marine Sanctuary Project was the beneficiary of a high-resolution multibeam bathymetric survey last week as Humboldt State University's R/V PACIFIC HUNTER mowed the grass on the southern Monterey Bay shelf. The 5- day survey revealed a new trend of seafloor mounds in a north-south alignment northward out from the Peninsula. A relationship to the Monterey Bay fault zone is suggested by the linear edges of some of these mounds, parallel to the Monterey Bay fault zone. Both swath bathymetry and backscatter imagery were collected and gave complimentary information about the seafloor geology. The nearshore sand-bands/ribbons, previously mapped by Hunter et al, were imaged in detail, as was the major pipeline south of the Salinas River. Our crew of Steve Eittreim, Andy Stevenson and Roberto Anima were coached by the visiting dean of multibeam, Larry Mayer of the Univ. of New Brunswick, Canada. The Simrad EM- 1000 system, apparently the state of the art in multibeam bathy, was in some contrast to the platform used: The PACIFIC HUNTER is a 1927 refitted 125-foot coast guard cutter recently given a new life as research vessel, thanks to gargantuan efforts on the part of folks at HSU. She will be berthed at Redwood City for a couple of weeks before repair of one engine and the trek back to Humboldt Bay.
Publications
Eittreim, Stephen L., and Noble, Marlene, editors, 2002, Seafloor geology and
natural environment of the Monterey Bay National Marine Sanctuary: Marine 
Geology, v
. 181
http://www.sciencedirect.com/

Journals > m > Marine Geology > Volumes 181 - 190 > Volume 181, Issues 1-3

Wong, F.L., and Eittreim, S.L., 2001, Continental Shelf GIS for the Monterey Bay National Marine Sanctuary: U.S. Geological Survey Open-file Report 01-179, 1 CDROM, http://geopubs.wr.usgs.gov/ open-file/of01-179/
Got Help? For P-1-95-MB, we would appreciate any information on -- activity type, 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.
Type Webpage KMZ Arc         Metadata        
Imagery data      
Metadata data     txt  data  FAQ  xml
Navigation data nav    
Times   061.times    

P-1-95-MB location map of where navigation 

equipment operated
P-1-95-MB location map of where navigation 

equipment operated

 
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