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  3. @ Mississippi Alluvial Plain (MAP) Regional Water-Availability Study
  4. Hydrogeologic Framework
  5. Combined results and derivative products of hydrogeologic structure and properties from airborne electromagnetic surveys in the Mississippi Alluvial Plain
  6. Mississippi Alluvial Plain (MAP): Electrical Resistivity & Facies Classification Grids

Mississippi Alluvial Plain (MAP): Electrical Resistivity & Facies Classification Grids

Dates

Publication Date
Start Date
2019-11-01
End Date
2021-02-09

Citation

James, S.R., and Minsley, B.J., 2021, Combined results and derivative products of hydrogeologic structure and properties from airborne electromagnetic surveys in the Mississippi Alluvial Plain: U.S. Geological Survey data release, https://doi.org/10.5066/P9382RCI.

Summary

Electrical resistivity results from two regional airborne electromagnetic (AEM) surveys (Minsley et al. 2021 and Burton et al. 2021) over the Mississippi Alluvial Plain (MAP) were combined by the U.S. Geological Survey to produce three-dimensional (3D) gridded models and derivative hydrogeologic products. Grids were discretized in the horizontal dimension to align with the 1 kilometer (km) x 1 km National Hydrogeologic Grid (NHG; Clark et al. 2018), and vertically discretized into both 5 meter (m) depth slices and 5 m elevation slices. Ten “facies classes” were defined to categorize materials expected to have similar hydrologic and geologic properties based on their electrical resistivity (i.e. low classes correspond to clays and silts [...]

Contacts

Point of Contact :
Stephanie R James
Originator :
Stephanie R James, Burke J Minsley
Metadata Contact :
Stephanie R James, GS GGGSC DM Team
Publisher :
U.S. Geological Survey
USGS Mission Area :
Water Resources
Cooperator/Partner :
Lower Mississippi-Gulf Water Science Center
SDC Data Owner :
Geology, Geophysics, and Geochemistry Science Center
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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

MAP_RegionalAEM_2020_ResistivityFacies_DepthGrids.nc
“electrical resistivity and facies classifications in depth layers” 		57.51 MB application/x-netcdf
MAP_RegionalAEM_2020_ResistivityFacies_ElevationGrids.nc
“electrical resistivity and facies classifications in elevation layers” 		59.76 MB application/x-netcdf
MAP_RegionalAEM_2020_ResistivityFacies_Grids.xml
Original FGDC Metadata
View 		24.58 KB application/fgdc+xml
MAP_RegionalAEM_2020_ResistivityFacies_DepthGrids.ncml
“XML document in NetCDF markup language containing DepthGrids metadata” 		9.63 KB text/plain
MAP_RegionalAEM_2020_ResistivityFacies_ElevationGrids.ncml
“XML document in NetCDF markup language containing ElevationGrids metadata” 		9.65 KB text/plain

Purpose

These data were combined and created to provide high-resolution information about hydrogeologic structure and properties to aid interpretations, hydrologic models, water resource studies, and local decision-making concerning the Mississippi River Valley Alluvial aquifer.

Map

Communities

  • USGS Lower Mississippi-Gulf Water Science Center

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