Skip to main content

Jerde NWR, Montana, 2017

Dates

Publication Date
Time Period
2017-02-24

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 Jerde 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 1 square-kilometer. 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

Attached Files

Click on title to download individual files attached to this item.

Prairie_Potholes_Jerde_RawData.csv 1.89 MB text/csv
Prairie_Potholes_Jerde_ProcessedData.csv 930.96 KB text/csv
Shapefile: Prairie_Potholes_2017_Jerde.zip
Prairie_Potholes_2017_Jerde.dbf 209.18 KB
Prairie_Potholes_2017_Jerde.prj 403 Bytes
Prairie_Potholes_2017_Jerde.shp 266.21 KB
Prairie_Potholes_2017_Jerde.shx 76.13 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.

Additional Information

Shapefile Extension

boundingBox
minY48.954079662118474
minX-104.20046826807996
maxY48.96113588570464
maxX-104.18782988594089
files
namePrairie_Potholes_2017_Jerde.dbf
contentTypetext/plain
pathOnDisk__disk__50/ba/43/50ba43a7ea5a578127ea0703ecf5225cabbf939f
size214202
dateUploadedFri Apr 17 15:09:30 MDT 2020
namePrairie_Potholes_2017_Jerde.prj
contentTypetext/plain
pathOnDisk__disk__21/2c/10/212c10a28870466cd1579887d72fcc0f33af8d2b
size403
dateUploadedFri Apr 17 15:09:29 MDT 2020
namePrairie_Potholes_2017_Jerde.shp
contentTypex-gis/x-shapefile
pathOnDisk__disk__25/5d/80/255d806203b56901fcaa6a1cb32c051b7893e75b
size272596
dateUploadedFri Apr 17 15:09:30 MDT 2020
namePrairie_Potholes_2017_Jerde.shx
contentTypex-gis/x-shapefile
pathOnDisk__disk__6d/9e/5b/6d9e5b527501af0de388c5f9b8467dcbde118b81
size77956
dateUploadedFri Apr 17 15:09:30 MDT 2020
geometryTypePoint
namePrairie_Potholes_2017_Jerde
nativeCrsEPSG:32613

Item Actions

View Item as ...

Save Item as ...

View Item...