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ID
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06024
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Also Known As
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06024
R-1-06-ME
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Abstract
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United States Geological Survey, Woods Hole, Massachusetts.
Chief Scientists: Walter Barnhardt, Joe Kelley, University of
Maine. Data (Bathymetry, Seismic refection, Sidescan-Klien,
RTK-GPS) of field activity 06024 (R-1-06-ME) in Penobscot
Bay, Maine, United States, North Atlantic from 09/11/2006 to
09/18/2006
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Organization |
United States Geological Survey, Woods Hole, Massachusetts
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Project/Theme
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Belfast Bay Pockmarks
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Chief Scientist
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Walter Barnhardt
Joe Kelley
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Platform
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Rafael
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Area of Operation
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Penobscot Bay, Maine, United States, North Atlantic, Maine
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Bounding Coordinates
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44.50000
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-69.00000 -68.75000 |
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44.33333 |
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Ports
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LEAVE Belfast, Maine
ARRIVE Belfast, Maine
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Dates
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09/11/2006 (JD 254) to 09/18/2006 (JD 261)
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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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Walter Barnhardt
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Joe Kelley
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University of Maine, Chief Scientist
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Barry Irwin (boat captain)
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Bill Danforth
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tech
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Bergeron
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tech
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Andrews
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data processing
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Laura Brothers
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University of Maine
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Equipment Used
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Bathymetry
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Seismic refection
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Sidescan-Klien
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RTK-GPS
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Purpose
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Seafloor mapping of pockmark field at mouth of Penobscot River
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Summary
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The survey took place from 11-18 September on board the RV
Rafael. We collected swath bathymetry, sidescan-sonar backscatter,
and subbottom profiles over an area of approximately 25 km2. The
survey focused on the mouth of the Penobscot River where it enters
upper Penobscot Bay (also known as Belfast Bay). This area is the
primary depositional site for sediment carried by the river, and
would probably experience significant impacts if/when the proposed
dam removals occur in upstream areas. With these data as a
pre-removal baseline, we will be able to quantify any changes in
bottom morphology and substrate conditions that might result from
releasing sediment from upstream impoundments. These new data will
be compared to a bathymetric survey collected in 1999 by NOAA that
covers part of the same area. Where the data overlap, we will be
able to determine what (if any) changes have occurred over the last
7 years and make conclusions about the rates and patterns of
sediment accumulation at the mouth of the river.
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Notes
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Navigation technique: RTK-GPS.
8 days at sea.
180 kms. of continuous data.
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Funding
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Got Help?
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For 06024, 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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