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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2010-006-FA

Other ID: none

Status: Completed

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

Funding Program(s):

Principal Investigator(s): John Bratton

Affiliate Investigator(s): Holly Michael, University of Delaware

Information Specialist(s): VeeAnn Atnipp Cross

Data Type(s): Electro-Magnetic: Resistivity, Environmental Data: CTD, Environmental Data: Conductivity, Environmental Data: Dissolved Oxygen, Environmental Data: ORP, Environmental Data: Temperature, Environmental Data: pH, Location-Elevation: Navigation, Seismics: Sub Bottom Profiler, Sonar: Single Beam, Time Series: Mooring (physical oceanography)

Scientific Purpose/Goals: CRP surveying of Indian River Bay, Delaware.


Start Port/Location: Indian River Marina, Rehoboth Beach, DE

End Port/Location: Indian River Marina, Rehoboth Beach, DE

Start Date: 2010-04-12

End Date: 2010-04-16

Equipment Used: HYPACK, Boomer, Temperature and salinity, Pressure, Echosounder, Resistivity Profiler, EdgeTech 424 chirp sub-bottom profiler, YSI multiparameter sonde

Information to be Derived:

Summary of Activity and Data Gathered: 12 April 2010, drive from Falmouth to Delaware, launch boat and test gear; 13 April 2010, collect resistivity (CRP), depth, salinity/temp, and chirp data around perimeter of Indian River Bay, rough weather in PM, end operations early in SE corner of bay; 14 April 2010, collect data on long E-W lines, equipment problems in AM, Holly Michael and students visit at marina around mid-day, PM resume CRP and salinity/temp/bathy data collection on E-W and some N-S lines, chirp system not operating; 15 April 2010, collect more data along N-S zigzag lines (no chirp), also E-W lines in shallow, SE corner of bay, and set of ~12 closely-spaced lines in a dense box off Holts Landing State Park, load boat on trailer at marina and stow equipment at end of day; 16 April 2010, travel day back to Falmouth from Delaware.

Staff: Emile Bergeron, VeeAnn Atnipp Cross, Adrian Green

Affiliate Staff:

Notes: Data quality problems with bathymetry and salinity/temperature on 13 April PM and 14 April AM associated with placement of instruments too close to bow and chirp towfish; moved astern on 15 April; CRP processed with available and interpolated data for bathymetry and salinity/temperature on 13-14 April; tide stage data downloaded from USGS gauges at Indian River Inlet (Coast Guard Station) and Oak Orchard gauge (#01484595) upstream in Indian River.


Indian River Bay, Delaware, United States, North America, North Atlantic;

North: 38.6276 South: 38.55568 West: -75.2289 East: -75.06134




Cross, V.A., Bratton, J.F., Michael, H.A., Kroeger, K.D., Green, A., and Bergeron, E., 2014, Continuous Resistivity Profiling and Seismic-Reflection Data Collected in April 2010 from Indian River Bay, Delaware: U.S.Geological Survey Open-File Report 2011-1039.


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
HYPACK --- Navigation
EdgeTech 424 chirp sub-bottom profiler --- Sub Bottom Profiler
Echosounder --- Single Beam
Boomer --- Boomer
Temperature and salinity --- CTD
Pressure --- Mooring (physical oceanography)
Resistivity Profiler --- Resistivity
YSI multiparameter sonde --- Conductivity
Dissolved Oxygen

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