| Identifier | 2009-021-FA | ||||||||
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| Alternate names | B-21-09-RI | ||||||||
| Purpose | Continuous resistivity profiling to map submarine fresh-saline groundwater interface in Greenwich Bay. | ||||||||
| Location | Greenwich Bay, Narragansett Bay, Rhode Island, United States, North America, North Atlantic; | ||||||||
| Summary | 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. | ||||||||
| Comments | Original Center People field contained: John Bratton, co-chief scientist; Chuck Worley, marine resistivity tech. Project = Direct Groundwater - Chesapeake, Direct Groundwater - Chesapeake | ||||||||
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| Organization |
384 Woods Hole Road
Quissett Campus
Woods Hole, MA02543-1598
(508) 548-8700
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| Principal investigators | John F Bratton | ||||
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| Affiliate principal | John King, URI-GSO | ||||
| Affiliate staff | John King, URI, co-chief scientist; URI students Emily Shumchenia (shore/marina logistics) and Russ Miller (boat driver) |
| Data category: | Electro-Magnetic, Environmental Data, Location-Elevation, Sonar |
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| Data type: | Resistivity, Conductivity, Temperature, Navigation, Single Beam |
| Name | Description |
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| Cruise log | PDF file of the data acquisition logs for USGS Field Activity 2009-021-FA. |
| Equipment | Usage description | Data types | Datasets |
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| Lowrance 480M | Navigation, Single Beam | 2 | |
| YSI multiparameter sonde | The 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 | 1 |
| AGI SuperSting | AGI 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 | 7 |
| Dataset name | Equipment | Description | Dataset contact |
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| 2009-021-FA_res_lines | Lowrance 480M | Trackline of the boat XY position during the collection of CRP data in Greenwich Bay, Rhode Island in May 2009 (Geographic WGS 84, polyline shapefile format). | VeeAnn A. Cross |
| 2009-021-FA_res_pntnav | Lowrance 480M | 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). | VeeAnn A. Cross |
| 2009-021-FA_YSIdata | YSI multiparameter sonde | Locations and YSI 30 sensor data used to determine water conductivity values (Geographic WGS 84, point shapefile, XLSX, and CSV formats). | VeeAnn A. Cross |
| 2009-021-FA_may14_procresis | AGI SuperSting | Processed CRP data collected on May 14, 2009 in Greenwich Bay, Rhode Island. | VeeAnn A. Cross |
| 2009-021-FA_may14_rawres | AGI SuperSting | Raw CRP data collected by the USGS on May 14, 2009 in Greenwich Bay, Rhode Island. | VeeAnn A. Cross |
| 2009-021-FA_may15_procresis | AGI SuperSting | Processed CRP data collected on May 15, 2009 in Greenwich Bay, Rhode Island. | VeeAnn A. Cross |
| 2009-021-FA_may15_rawres | AGI SuperSting | Raw CRP data collected by the USGS on May 15, 2009 in Greenwich Bay, Rhode Island. | VeeAnn A. Cross |
| 2009-021-FA_mrgmay14_resbsed | AGI SuperSting | 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). | VeeAnn A. Cross |
| 2009-021-FA_mrgmay15_resbsed | AGI SuperSting | 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). | VeeAnn A. Cross |
| 2009-021-FA_res2dinv | AGI SuperSting | RES2DINV formatted CRP data from Greenwich Bay, Rhode Island. | VeeAnn A. Cross |