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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2018-001-FA

Other ID: none

Status: Pending

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

Funding Program(s):

Principal Investigator(s): Walter Barnhardt

Affiliate Investigator(s):

Information Specialist(s): Seth Ackerman

Data Type(s): Seismics: Sub Bottom Profiler, Sonar: Multibeam, Sonar: Sound Velocity

Scientific Purpose/Goals: To collect geologic framework information from inner shelf and inlet (where possible) for coastal-change studies


Start Port/Location: Bass River, NJ

End Port/Location: Bass River, NJ

Start Date: 2018-05-29

End Date: 2018-06-15

Equipment Used: Sensor - MVP30, Reson T20-P, Edgetech chirp subbottom profiler 512i

Information to be Derived: surficial geology, stratigraphy, Holocene sed thickness, depth to transgressive UC, etc

Summary of Activity and Data Gathered: High-resolution geophysical mapping of the sea floor in Little Egg Inlet and along the southern end of Long Beach Island near Beach Haven, NJ was conducted from May 31 to June 10, 2018 as part of a collaborative effort between the U.S. Geological Survey and Stockton University. The goal of these mapping surveys was to provide high-quality data needed to build scientific knowledge of the evolution and behavior of the New Jersey barrier island system. Multibeam bathymetry and backscatter data were collected along 741 kilometers of tracklines (~200 square kilometers) of the coastal sea floor to regionally define its depth and morphology, as well as the character and distribution of sea-floor sediments. Approximately 690 kilometers of seismic-reflection profile data were also collected to define the thickness and structure of sediment deposits in the inlet and offshore.

Staff: Seth Ackerman, Charles Worley, Alexander Nichols, Walter Barnhardt

Affiliate Staff:

Notes: Funding project is LQ00-GHY2000. Work on shelf will likely reqire a larger vessel than Rafael -- one possibility is the RV Arabella (Rutgers). USGS funding is firm. Potential reimbursable $$ from USFWS *might* expand the scope of mapping.


Little Egg Inlet, New Jersey, United States, Atlantic Ocean

North: 39.56970507 South: 39.4243 West: -74.45983887 East: -74.22515869


photo of R/V Petrel - Stockton University
R/V Petrel - Stockton University



Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Sensor - MVP30 --- Sound Velocity
Reson T20-P --- Water column reflectivity
Edgetech chirp subbottom profiler 512i --- Sub Bottom Profiler

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