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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2002-020-FA

Other ID: none

Status: Completed

Organization(s): USGS, Woods Hole Coastal and Marine Science Center

Funding Program(s):

Principal Investigator(s): David Twichell

Affiliate Investigator(s): Mark Rudin, UNLV

Information Specialist(s): David Foster

Data Type(s): Sonar: Sidescan, Seismics: Sub Bottom Profiler, Imagery: Photo, Imagery: Video, Sampling: Geology, Location-Elevation: Navigation

Scientific Purpose/Goals: Characterize the lake floor and map sediment thickness using sidescan sonar and chirp sub-bottom profiling techniques.


Start Port/Location: Cottonwood Cove, NV

End Port/Location: Cottonwood Cove, NV

Start Date: 2002-04-15

End Date: 2002-04-30

Equipment Used: HYPACK, ARGO, Edgetech DF-1000 sidescan sonar, Knudsen CHIRP Sub-bottom Profiler, ISIS

Information to be Derived: Sea floor map;

Summary of Activity and Data Gathered: A total of 223 km of 3.5 kHz Chirp sub-bottom and EdgeTech DF-1000 sidescan sonar data were collected. Navigation was with P-code DGPS.

Staff: David Foster, Kenneth E. Parolski, Mark Capone

Affiliate Staff:

Notes: Original Center People field contained: Chief scientist - Dave Foster; Technician - Kenneth Parolski; Data processor - Mark Capone.
Project = Lake Mohave, Lake Mohave


Lake Mohave, Nevada, Arizona, United States, North America;

North: 35.9 South: 35.2 West: -114.75 East: -114.55




Cross, V.A.A., Foster, David S., and Twichell, David C., 2005, Lake Mohave geophysical survey 2002; GIS data release: U.S. Geological Survey Open-File Report 2004-1247, CD-ROM, URL:


FAN 2002-020-FA has data viewable in the GeoMappApp/Virtual Ocean applications. To view this data in these applications go to and See the instructions for locating USGS data in these applications. You can also view the imagery created from the SEGY data at

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Edgetech DF-1000 sidescan sonar --- Sidescan
2002-020-FA-SO-001 ( Sidescan sonar images)
ISIS --- Sidescan
Knudsen CHIRP Sub-bottom Profiler --- Sub Bottom Profiler
Chirp seismic data ( )
2002-020-FA-SE-001 ( Seismics Data - 60 scanned record sections in JPEG format.)
2002-020-FA-SE-002 ( Raw seismic data)
ARGO --- Photo
HYPACK --- Navigation
2002-020-FA-LN-001 ( Navigation data)

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