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ID
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N-1-97-MW
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Abstract
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Chief Scientist: Bruce Jaffe. Geophysical and Video data
(Kleinsidescan, 3dot5khz, Geopulse, GPS, bottomtransponder,
bathymetry, YoNav, computer) of field activity N-1-97-MW in
Sleeping Bear Point, Michigan from 05/19/1997 to 05/22/1997
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Project/Theme
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Recent Submarine and Coastal Landsliding in Sleeping Bear Dunes
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| National Plan
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Natural Hazards and Public Safety/Offshore
Earthquakes and Landslides/Sleeping Bear Coastal Landslide
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Chief Scientist
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Bruce Jaffe
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Activity Type
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Geophysical and Video
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Platform
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Neptune
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Area of Operation
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Sleeping Bear Point, Michigan, Midwest, US
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Bounding Coordinates
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45.02462
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-86.07252 -85.76251 |
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44.90464 |
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Ports
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leave Leeland, MI
arrive Leeland, MI
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Dates
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05/19/1997 (JD 139) to 05/22/1997 (JD 142)
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Analog Materials
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No analog holdings.
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Crew
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Bruce Jaffe
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Chief Scientist, USGS Western Region
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Guy Cochranne
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Unspecified, USGS Western Region
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Mike Boyle
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Electronic Technician, USGS Western Region
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Hank Chezar
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Underwater Video Expert, USGS Western Region
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Stuart Sides
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Head Side-scan Processor, USGS Western Region
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Miguel Velasco
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Side-scan Processor, USGS Western Region
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John Gann
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Navigation Specialist, USGS Western Region
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William French
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Unspecified, USGS Volunteer
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Equipment Used
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Kleinsidescan
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3dot5khz
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Geopulse
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GPS
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bottomtransponder
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bathymetry
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YoNav
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computer
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Purpose
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Map the offshore portion of the February 1995
Sleeping Bear Point landslide to better understand the affect of landslides
on the coastal system in the Sleeping Bear National Lakeshore, gather
information for a slope stability analysis, determine landslide history and
framework geology near the Point.
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Information to be Derived
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Extent of submarine portion of the 1995 landslide, geologic controls on sliding,
volume sediment moved offshore during the 1995 and other older landslides,
images of slide features.
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Summary
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Ran side-scan sonar in reconnaissance and mosaic modes. Collected
subbottom profiles. Collected underwater video to groundtruth side-scan images
and to document slide features.
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Notes
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The following is the beginning of USGS Fact Sheet 020-98.
In February 1995, a 1,600-foot stretch of popular beach at Sleeping Bear
Dunes National Lakeshore suddenly slid into the waters of northeastern Lake
Michigan. The National Park Service (NPS) immediately requested the
assistance of the U.S. Geological Survey (USGS) in evaluating the hazard at
the lakeshore. To protect the public, USGS and NPS scientists are
conducting studies that will help predict when the landslide-prone area
will move again.
See the entire Fact Sheet on this project at:
http://geopubs.wr.usgs.gov/FactSheets/SleepingBear/SleepingBear.html
Crew:
Guy Cochranne- Geophysicist
Mike Boyle- Electronic Technician
Hank Chezar- Underwater Video Expert
Dr. William French, Visiting Scientist and Watchstander, USGS Volunteer
Stuart Sides- Head side-scan processor
Miguel Velasco- Side-scan processor
John Gann- Navigation Specialist
Lv port: Leeland, MI
Ar port: Leeland, MI
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Got Help?
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For N-1-97-MW, we would appreciate any information on -- analog materials, contract, days at sea, dive count, funding, information specialist, kms of navigation, NGDC Info, organization, owner, project number, publications, scanned materials, seismic description, station count, station description, submersible, tabulated info.
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