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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2009-021-FA

Other ID: B-21-09-RI

Status: Completed

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

Funding Program(s):

Principal Investigator(s): John Bratton

Affiliate Investigator(s): John King, URI-GSO

Information Specialist(s): VeeAnn Atnipp Cross

Data Type(s): Electro-Magnetic: Resistivity, Environmental Data: Conductivity, Environmental Data: Temperature, Location-Elevation: Navigation, Sonar: Single Beam

Scientific Purpose/Goals: Continuous resistivity profiling to map submarine fresh-saline groundwater interface in Greenwich Bay.

Vehicle(s):

Start Port/Location: East Greenwich, RI

End Port/Location: East Greenwich, RI

Start Date: 2009-05-13

End Date: 2009-05-15

Equipment Used: GPS (wh), HYPACK, Echosounder, Resistivity Profiler, YSI multiparameter sonde

Information to be Derived:

Summary of Activity and Data Gathered: May 13, Weds., Worley arrives in PM to set up gear on boat at Norton's Marina, East Greenwich, RI; May 14, Thurs., Worley, Bratton, King, Miller survey with 50-m CRP streamer in Greenwich Cove, Apponaug Cove, around perimeter of Greenwich Bay, and several N-S crossings in western half, King put off at marina at noon, VeeAnn Cross checks AM data remotely back in Woods Hole -- looks OK; May 15, same crew (incl. King) survey open parts of Greenwich Bay with 100-m streamer, periodic salinity measurements with YSI 30 (all 25.5-27.8 ppt), run long W-E lines, then out mouth to Patience Island, then SW to mouth of Potowomut Cove, then N back to Greenwich Bay, zigzagging N-S-N over eastern half of bay, back at pier at 1530.

Staff: John Bratton, Charles Worley

Affiliate Staff:
John King
URI
co-chief scientist; URI students Emily Shumchenia (shore/marina logistics) and Russ Miller (boat driver)

Notes: Original Center People field contained: John Bratton, co-chief scientist; Chuck Worley, marine resistivity tech.
Project = Direct Groundwater - Chesapeake, Direct Groundwater - Chesapeake

Location:

Greenwich Bay, Narragansett Bay, Rhode Island, United States, North America, North Atlantic;

Boundaries
North: 41.7 South: 41.64 West: -71.46 East: -71.38

Platform(s):


Small pontoon boat

Publications

Bratton, J.F., and Cross, V.A., 2018, Continuous resistivity profiling data and associated data from Greenwich Bay, Rhode Island collected in 2009, U.S. Geological Survey Field Activity 2009-021-FA: U.S. Geological Survey data release, https://doi.org/10.5066/F7DR2TSX.

Portals/Viewers

Documents associated with this activity

Title Survey Equipment Description
Cruise log (document not focused on specific equipment) PDF file of the data acquisition logs for USGS Field Activity 2009-021-FA.

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
GPS (wh) --- Navigation
HYPACKThe navigation system used was a Lowrance 480M with an LGC-2000 Global Positioning System (GPS) antenna. The antenna was located 1.5 meters forward of the resistivity streamer tow point and directly above the fathometer transducer. The data are part of the resistivity data.Navigation
2009-021-FA_res_lines (Trackline of the boat's XY position during the collection of CRP data in Greenwich Bay, Rhode Island in May 2009 (Geographic WGS 84, polyline shapefile format).)
EchosounderBathymetry values were acquired by the 200 kHz Lowrance fathometer. The fathometer was mounted on the starboard side of the University of Rhode Island pontoon boat, directly below the GPS antenna. The data are part of the resisitivity data.Single Beam
2009-021-FA_res_pntnav (The boat's XY position, water depth, and water temperature during the collection of CRP data in Greenwich Bay, Rhode Island in May 2009 (Geographic WGS 84, point shapefile and CSV format).)
Resistivity ProfilerAGI SuperSting marine system. Field activity used both a 50m streamer and a 100-m streamer. The 50-m streamer has an 11 electrode array with electrodes spaced 5 meters apart. The 100-m streamer has an 11 electrode array with electrodes spaced 10 meters apart.Resistivity
2009-021-FA_may14_rawres (Raw CRP data collected by the USGS on May 14, 2009 in Greenwich Bay, Rhode Island.)
2009-021-FA_may15_rawres (Raw CRP data collected by the USGS on May 15, 2009 in Greenwich Bay, Rhode Island.)
2009-021-FA_may14_procresis (Processed CRP data collected on May 14, 2009 in Greenwich Bay, Rhode Island.)
2009-021-FA_may15_procresis (Processed CRP data collected on May 15, 2009 in Greenwich Bay, Rhode Island.)
2009-021-FA_mrgmay14_resbsed (Processed CRP data that occurs at the sediment water interface or below collected in Greenwich Bay, Rhode Island on May 14, 2009 (Geographic WGS 84, point shapefile and CSV formats).)
2009-021-FA_mrgmay15_resbsed (Processed CRP data that occurs at the sediment water interface or below collected in Greenwich Bay, Rhode Island on May 15, 2009 (Geographic WGS 84, point shapefile and CSV formats).)
2009-021-FA_res2dinv (RES2DINV formatted CRP data from Greenwich Bay, Rhode Island.)
YSI multiparameter sondeThe YSI 30 is a handheld system. The unit was placed in the water and measurements taken at 10 locations in Greenwich Bay. The measurements are surface water temperature, salinity, and specific conductance measurements. The specific conductance measurements were temperature-compensated.Conductivity
Dissolved Oxygen
ORP
pH
Temperature
2009-021-FA_YSIdata (Locations and YSI 30 sensor data used to determine water conductivity values (Geographic WGS 84, point shapefile, XLSX, and CSV formats).)

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