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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2007-001-FA

Other ID: none

Status: Completed

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

Funding Program(s):

Principal Investigator(s): Walter Barnhardt

Affiliate Investigator(s): Massachusetts Office of Coastal Zone Management

Information Specialist(s): Seth Ackerman, Brian Andrews

Data Type(s): Location-Elevation: Navigation, Seismics: Sub Bottom Profiler, Sonar: Multibeam, Sonar: Sidescan

Scientific Purpose/Goals: Sea floor mapping (geophysics only).


Start Port/Location: Green Harbor, MA

End Port/Location: Green Harbor, MA

Start Date: 2007-04-20

End Date: 2007-05-04

Equipment Used: SWATHplus-M 234 kHz, Real Time Kinematic GPS, Submetrix Sidescan sonar, EdgeTech 424 chirp sub-bottom profiler, Klein 595 100/500kHz sidescan sonar

Information to be Derived: Sea floor map; Bathymetric maps;

Summary of Activity and Data Gathered: Completed mapping in shallow water along coast, approx. from Green Harbor to Scituate, to fill in areas not covered by 2006 Megan Miller survey. Collected full coverage bathymetry and backscatter data, and closely spaced grid of sub-bottom profiles. Cruise was delayed 6 days by a strong nor'easter. Lost several days at end of cruise due to weather. Took along two data processors on this cruise for the first time (usually only one) in order to speed up the production. New 4-stroke outboards performed well, very quiet and lots of power. Auto-pilot seldom deviated from programmed HYPACK lines. New pole mount for chirp worked great, allowed tight turns to port w/out prop damage to fish. Now, if we could just find a way to launch/recover the big 512i fish! Total trackline length = 525 km; area mapped = 57 km2; water depths range from 4-20 m. Nearshore area south of Green Harbor (off Duxbury Beach) was not completed due to weather; will fill gaps during July cruise.

Staff: Seth Ackerman, Brian Andrews, Wayne Baldwin, Emile Bergeron, William Danforth, Jane Denny, David Foster, Barry Irwin, Charles Worley

Affiliate Staff:

Notes: Project = Geologic mapping of the Massachusetts inner shelf, Geologic mapping of the Massachusetts inner shelf


Massachusetts Bay, Scituate, Duxbury, Massachusetts, United States, North America, North Atlantic;

North: 42.33333 South: 41.66667 West: -70.8333 East: -70.33333


photo of Rafael


Andrews, B.D., Ackerman, Seth D., Baldwin, Wayne E., and Barnhardt, Walter A., 2010, Geophysical and sampling data from the inner continental shelf; northern Cape Cod Bay, Massachusetts: U.S. Geological Survey Open-File Report 2010-1006, URL:

Barnhardt, W.A., Ackerman, Seth D., Andrews, Brian D., and Baldwin, Wayne E., 2010, Geophysical and sampling data from the inner continental shelf; Duxbury to Hull, Massachusetts: U.S. Geological Survey Open-File Report 2009-1072, URL:

de La Beaujardière, J., Beegle-Krause, C.J., Bermudez, Luis, Hankin, Steven, Hazard, Lisa, Howlett, Eoin, Le, Steven, Proctor, Roger, Signell, Richard P., Snowden, Derrick, and Thomas, Julie, 2010, Ocean and coastal data management: , Proceedings of OceanObsâ09: Sustained Ocean Observations and Information for Society (Vol. 2), Venice, Italy, 21-25 September 2009, Hall, J., Harrison D.E. & Stammer, D., Eds., ESA Publication WPP-306. Venice, Italy, 21-25 September 2009, URL:

Pendleton, E.A., Baldwin, W.E., Barnhardt, W.A., Ackerman, S.D., Foster, D.S., Andrews, B.A., and Schwab, W.C., 2013, Shallow Geology, Sea-floor Texture, and Physiographic Provinces of the Inner Continental Shelf from Nahant to Northern Cape Cod Bay, Massachusetts: U.S.Geological Survey Open-File Report 2012-1157, URL:


FAN 2007-001-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
Submetrix Sidescan sonar --- Interferometric
EdgeTech 424 chirp sub-bottom profiler --- Sub Bottom Profiler
2007-001-FA-SE-001-01 ( 23 DVD's of SUBX, KLIEN, NAV. Data)
Chirp seismic data ( )
2007-001-FA-SE-001 ( Raw SGEY data)
Klein 595 100/500kHz sidescan sonar --- Sidescan
Sidescan mosaic 2 ( )
2007-001-FA-SO-001-01 ( 23 DVD's of SUBX, KLIEN, NAV. Data)
Sidescan mosaic ( )
Real Time Kinematic GPS --- Navigation
2007-001-FA-LN-001-01 ( 23 DVD's of SUBX, KLIEN, NAV. Data)
SWATHplus-M 234 kHz --- Interferometric
Bathymetry GIS data 2 ( )
Bathymetry GIS data ( )

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