AEM inverted resistivity models of the Mississippi Alluvial Plain, November 2018 - February 2019
Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired November 2018 to February 2019 along 16,816 line-kilometers (line-km) over the Mississippi Alluvial Plain (MAP). Data were acquired by CGG Canada Services, Ltd. with three different helicopter-borne sensors: the CGG Canada Services, Ltd. Resolve frequency-domain AEM instrument that is used to map subsurface geologic structure at depths up to 100 meters, depending on the subsurface resistivity; a Scintrex CS-3 cesium vapor magnetometer that detects changes in deep (hundreds of meters to kilometers) geologic structure based on variations in the magnetic properties of different formations; and a Radiation Solutions RS-500 spectrometer that detects the abundance of natural radioelements potassium, uranium, and thorium in the upper 20-30 cm that is used to determine differences in soil constituents. The survey was flown at a nominal sensor flight height of 30 m above terrain with 6- to 12-kilometer spaced east-west flight lines. The main survey block covers 13,641 line-km, including two north-south tie lines extending the length of the survey. Several rivers were surveyed along their center axes, covering 2,640 line-km (flight line numbers 8010000-8100001 nonsuccessive), and two separate inset grids were flown: (1) Crowley's Ridge in Arkansas with 1.5-km spaced east-west flights for a total of 406 line-km (flight line numbers 24025-24477 nonsuccessive) and (2) University of Memphis focus area in Tennessee with variable line spacing for a total of 129 line-km (flight line numbers 30010-30060 and 39010-39050 nonsuccessive).
This data release includes laterally-constrained inverted depth sections along all flight lines from the AEM data. Digital data of the laterally constrained inversions are provided and fields are defined in the data dictionary (https://www.sciencebase.gov/catalog/item/5d76ba5ce4b0c4f70d01ff94).
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Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "Bethany L. Burton",
"@type": "vcard:Contact",
"hasEmail": "mailto:blburton@usgs.gov"
}
|
| description | Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired November 2018 to February 2019 along 16,816 line-kilometers (line-km) over the Mississippi Alluvial Plain (MAP). Data were acquired by CGG Canada Services, Ltd. with three different helicopter-borne sensors: the CGG Canada Services, Ltd. Resolve frequency-domain AEM instrument that is used to map subsurface geologic structure at depths up to 100 meters, depending on the subsurface resistivity; a Scintrex CS-3 cesium vapor magnetometer that detects changes in deep (hundreds of meters to kilometers) geologic structure based on variations in the magnetic properties of different formations; and a Radiation Solutions RS-500 spectrometer that detects the abundance of natural radioelements potassium, uranium, and thorium in the upper 20-30 cm that is used to determine differences in soil constituents. The survey was flown at a nominal sensor flight height of 30 m above terrain with 6- to 12-kilometer spaced east-west flight lines. The main survey block covers 13,641 line-km, including two north-south tie lines extending the length of the survey. Several rivers were surveyed along their center axes, covering 2,640 line-km (flight line numbers 8010000-8100001 nonsuccessive), and two separate inset grids were flown: (1) Crowley's Ridge in Arkansas with 1.5-km spaced east-west flights for a total of 406 line-km (flight line numbers 24025-24477 nonsuccessive) and (2) University of Memphis focus area in Tennessee with variable line spacing for a total of 129 line-km (flight line numbers 30010-30060 and 39010-39050 nonsuccessive). This data release includes laterally-constrained inverted depth sections along all flight lines from the AEM data. Digital data of the laterally constrained inversions are provided and fields are defined in the data dictionary (https://www.sciencebase.gov/catalog/item/5d76ba5ce4b0c4f70d01ff94). |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://doi.org/10.5066/P9XBBBUU",
"mediaType": "application/http",
"description": "Landing page for access to the data"
},
{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "XML",
"mediaType": "text/xml",
"description": "The metadata original format",
"downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.5d76ba5ce4b0c4f70d01ff94.xml"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_5d76ba5ce4b0c4f70d01ff94 |
| keyword |
[
"Arkansas",
"Bayou Bartholomew",
"Bayou Meto",
"Boeuf River",
"Cache River",
"Coldwater River",
"Crowley's Ridge",
"GGGSC",
"Geology, Geophysics, and Geochemistry Science Center",
"Illinois",
"L'Anguille River",
"Louisiana",
"MRVA",
"Mississippi",
"Mississippi Alluvial Plain",
"Mississippi River",
"Mississippi River Valley Alluvial aquifer",
"Missouri",
"Saint Francis River",
"Tallahatchie River",
"Tennessee",
"USGS:5d76ba5ce4b0c4f70d01ff94",
"WAUSP",
"Water Availability and Use Science Program",
"Yazoo River",
"aeromagnetic surveying",
"aeroradiometric surveying",
"electromagnetic surveying",
"electromagnetics",
"engineering sciences",
"environment",
"geophysics",
"geoscientificInformation",
"geospatial datasets",
"groundwater",
"hydrogeology",
"magnetic field",
"magnetics",
"radiometrics",
"resistivity",
"water resources"
]
|
| modified | 2021-02-19T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -92.4522, 31.7405, -88.9188, 37.4157 |
| theme |
[
"geospatial"
]
|
| title | AEM inverted resistivity models of the Mississippi Alluvial Plain, November 2018 - February 2019 |
