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ID
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07007
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Also Known As
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A-1-07-LA
07007
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Abstract
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United States Geological Survey, Woods Hole, Massachusetts.
Chief Scientist: Dave Twichell. Data (Navigation-DGPS,
Navigation-Hypack, Seismic reflection, Sidescan-Klein 3000,
Swath bathymetry) of field activity 07007 (A-1-07-LA) in
Chandeleur Islands, Louisiana, northern Gulf of Mexico,
United States, North America, North Atlantic from 06/10/2007
to 06/22/2007
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Organization |
United States Geological Survey, Woods Hole, Massachusetts
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Project/Theme
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Northern Gulf Coast Ecosystem Change
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Chief Scientist
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Dave Twichell
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Platform
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Acadiana
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Area of Operation
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Chandeleur Islands, Louisiana, northern Gulf of Mexico, United States, North America, North Atlantic, Louisiana
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Bounding Coordinates
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29.75000
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-89.25000 -88.75000 |
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28.33333 |
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Ports
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LEAVE Venice, LA
ARRIVE Venice, LA
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Dates
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06/10/2007 (JD 161) to 06/22/2007 (JD 173)
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Analog Materials
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No analog holdings.
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Information Specialist
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Crew
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Equipment Used
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Navigation-DGPS
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Navigation-Hypack
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Seismic reflection
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Sidescan-Klein 3000
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Swath bathymetry
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Purpose
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Seafloor mapping along the offshore side of the southern
part of the Chandeleur Islands, Gulf of Mexico
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Summary
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This two-week cruise aboard the R/V ACADIANA collected
bathymetric, sidescan sonar and chirp seismic data along the
offshore side of the southern half of the Chandeleur Island chain of
eastern Louisiana. The survey was coordinated with additional
surveys conducted by the R/V GILBERT and a University of New Orleans
vessel that collected bathymetric and seismic data near the islands
and along the back side of the island chain. The purposes for
collecting these data were (1) to provide a detailed post-Katrina
bathymetry, (2)to study the processes that have shaped the sea floor
in an effort to better understand the effects of hurricane Katrina,
and (3) to understand the influence of the underlying stratigraphy
on the sea floor geology. The offshore geophysical dataset was
collected on a grid of lines spaced 100 m apart in the shore
parallel direction and 1000 m apart in the shore normal direction.
Submetrix swath bathymetric data and Klein sidescan sonar imagery
were collected along 2146 km of tracks and Edgetech 512i chirp
subbottom data were collected along 1654 km of tracks.
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Notes
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Navigation technique: DGPS.
Project number and name: 2921-CNV77 Northern Gulf Coast Ecosystem Change
14 days at sea.
2146 kms. of continuous data.
0 stations occupied.
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Funding
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USGS and Louisiana Department of Natural Resources
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Got Help?
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For 07007, we would appreciate any information on -- activity type, analog materials, contract, days at sea, dive count, information to be derived, kms of navigation, national plan, NGDC Info, owner, project number, publications, scanned materials, seismic description, station count, station description, submersible, tabulated info.
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