USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 2011-056-FA

Other ID: none

Status: Completed

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

Funding Program(s):

Location: Upper Mystic Lake, Massachusetts

Principal Investigator(s): Carolyn Ruppel

Affiliate Investigator(s): Benjamin Scandella--MIT

Information Specialist(s): Carolyn Ruppel

Data Type(s): Location-Elevation: Navigation, Sonar: Single Beam

Scientific Purpose/Goals: map gas in sediments and water column in vicinity of lake-bottom sonar deployment


Start Date: 2011-11-29

Start Port/Location: Winchester Boat Club

End Date: 2011-11-29

End Port/Location: Winchester Boat Club

Equipment Used: EdgeTech 424 chirp sub-bottom profiler, HYPACK, Echosounder

Information to be Derived: Time series data;Sea floor map;

Summary of Activity and Data Gathered: Re-occupied closely spaced Chirp lines collected earlier to determine if any changes in gas charging of sediments or gas emissions from sediments. Crossed sonar deployed on bottom lander several times and imaged it in the Chirp data. Sought to correlate seeps detected by the sonar lander with seeps inferred from fishfinder/Chirp records.

Staff: Eric Moore, Charles Worley

Affiliate Staff:

Project = Ruppel--NSF Hydrologic Sciences, Ruppel--NSF Hydrologic Sciences

Location Map:


photo of Knob


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
EdgeTech 424 chirp sub-bottom profiler --- Sub Bottom Profiler
HYPACK --- Navigation
Echosounder --- Single Beam