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  4. Hansen NWR, Montana, 2017

Hansen NWR, Montana, 2017

Dates

Publication Date
Time Period
2017-02-16

Citation

Hoogenboom, B.E., Preston, T.M., Smith, B.D., Moulton, C.W., and Ball, L.B., 2020, Ground conductivity measurements at selected National Wildlife Refuges, Montana and North Dakota, 2017-2018: U.S. Geological Survey data release, https://doi.org/10.5066/P9NY3UJU.

Summary

Shallow subsurface electrical conductivity was mapped at Hansen National Wildlife Refuge (NWR) in northeast Montana using the DUALEM421 electromagnetic sensor (Dualem, Inc., ON, Canada) in the winter of 2017. Data were acquired by towing the DUALEM421 sensor on a sled behind an all-terrain vehicle or snow machine, with the sensor at a nominal height of 0.3 meters (m) above ground surface. Approximately 10 line-kilometers (km) of data were acquired over an area of approximately .2 square-kilometers. Data were manually edited to remove sensor dropouts, lag corrected for apparent offsets between recorded GPS location and data locations for each coil pair, and averaged to a sounding distance of 1m along the survey path; data were not decoupled [...]

Contacts

Point of Contact :
Bennett E Hoogenboom
Originator :
Bennett E Hoogenboom, Todd M Preston, Bruce D Smith, Craig W Moulton, Lyndsay B Ball
Metadata Contact :
Bennett E Hoogenboom
Publisher :
U.S. Geological Survey
SDC Data Owner :
Geology, Geophysics, and Geochemistry Science Center
USGS Mission Area :
Energy and Minerals
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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Ground_conductivity_at_selected_NWR_Hansen_2017.xml
Original FGDC Metadata
View 		16.05 KB application/fgdc+xml
Prairie_Potholes_Hansen_RawData.csv 1.58 MB text/csv
Prairie_Potholes_Hansen_ProcessedData.csv 921.4 KB text/csv
Shapefile: Prairie_Potholes_2017_Hansen.zip
Prairie_Potholes_2017_Hansen.dbf 205.14 KB
Prairie_Potholes_2017_Hansen.prj 403 Bytes
Prairie_Potholes_2017_Hansen.shp 261.07 KB
Prairie_Potholes_2017_Hansen.shx 74.66 KB

Purpose

Historical oil and gas development on or adjacent to some U.S. Fish and Wildlife Service managed lands has resulted in saline contamination of surface and groundwater resources. At some locations, the extent and magnitude of contamination has been previously documented whereas at other areas, the extent of potential contamination is unknown. These data were collected to establish the electrical conductivity patterns that may be associated with changes in shallow salinity at selected U.S. Fish and Wildlife Service managed lands.

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