USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 2008-024-FA

Other ID: R-24-08-ME

Status: Completed

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

Funding Program(s):

Principal Investigator(s): Walter Barnhardt

Affiliate Investigator(s): Joe Kelley, University of Maine; Laura Brothers, University of Maine

Information Specialist(s): Brian Andrews

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

Scientific Purpose/Goals: Re-mapping of pockmark field to determine morphological change (if any) and to refine sub-bottom structure.


Start Date: 2008-09-16

Start Port/Location: Belfast, ME

End Date: 2008-09-25

End Port/Location: Belfast, ME

Equipment Used: Klein 531 sidescan, EdgeTech 424 chirp sub-bottom profiler, Klein 3000, Digital camera, Real Time Kinematic GPS, SWATHplus-M 234 kHz, Sensor - SVP

Information to be Derived:

Summary of Activity and Data Gathered: Seismic reflection system failed after three days due to software problems (SB Logger). Very frustrating. Swath bathymetry and backscatter from sidescan sonar: 8 days of data collection, 340 km of tracklines, water depths 3-90 m; Seismic reflection profiles: 3 days of data collection, 109 km of tracklines; Sound velocity profiles: 15.

Staff: Brian Andrews, Walter Barnhardt, Emile Bergeron, Barry Irwin, Charles Worley

Affiliate Staff:
Joe Kelley and Laura Brothers
Univ. of Maine (co-PIs)

Notes: Original Center People field contained: Walter Barnhardt (PI), Barry Irwin (boat driver), Emile Bergeron (master tech), Brian Andrews (data processor), and Chuck Worley (tech).
Project = Penobscot River Sampling, Penobscot River Sampling


Penobscot River, Penobscot Bay, Belfast Bay, Maine, United States, Gulf of Maine, North America, North Atlantic;

North: 44.5 South: 44.3 West: -68.8 East: -69


photo of Rafael



Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Klein 531 sidescan --- Sidescan
EdgeTech 424 chirp sub-bottom profiler --- Sub Bottom Profiler
Klein 3000 --- Sidescan
Digital camera --- Photo
Real Time Kinematic GPS --- Navigation
SWATHplus-M 234 kHz --- Interferometric
2008-024-FA-BA-001-01 ( Processed SwathPlus bathymetry)
Sensor - SVP --- Sound Velocity