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Location Folder Show Tree ROOT _ScienceBase Catalog __USGS Lower Mississippi-Gulf Water Science Center ___@ Mississippi Alluvial Plain (MAP) Regional Water-Availability Study ____Hydrogeologic Framework Airborne electromagnetic, magnetic, and radiometric survey of the Mississippi Alluvial Plain, November 2018 - February 2019 Airborne electromagnetic, magnetic, and radiometric survey of the Mississippi Alluvial Plain, November 2019 - March 2020 Airborne electromagnetic, magnetic, and radiometric survey, Shellmound, Mississippi, March 2018 (ver. 2.0, March 2024) Combined results and derivative products of hydrogeologic structure and properties from airborne electromagnetic surveys in the Mississippi Alluvial Plain (ver. 2.0, July 2024) Ground-based electromagnetic survey, Shellmound, Mississippi, October 2018 More... Filters Date Range Past year (5) Past month (1) Past week (1) Past day (0) Custom range... To   Search Extensions Shapefile (6) ArcGIS Service Definition (2) Types Downloadable (8) Map Service (8) OGC WFS Layer (6) OGC WMS Layer (6) Shapefile (6) ArcGIS REST Map Service (2) ArcGIS Service Definition (2) Contacts U.S. Geological Survey - ScienceBase Burke J Minsley Geology, Geophysics, and Geochemistry Science Center Michael D Pace Stephanie R James More... Categories Data (9) Data Release - Revised (2) Tag Types Theme (9) Place (9) USGS Scientific Topic Keyword (6) Harvest Set (9) Tag Schemes None (8) USGS Thesaurus (8) Geographic Names Information System (GNIS) (6) ISO 19115 Topic Category (7) Common Geographic Areas (1) SEG dictionary (1) USGS Geographic Names Information System (GNIS) (1) View Results as: JSON ATOM CSV Browse Folder

Airborne electromagnetic, magnetic, and radiometric survey of the Mississippi Alluvial Plain, November 2019 - March 2020 Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired November 2019 to March 2020 along 24,030 line-kilometers (line-km) over the Mississippi Alluvial Plain (MAP). Data were acquired by CGG Canada Services, Ltd. with three different airborne sensors: the CGG Canada Services, Ltd. TEMPEST time-domain AEM instrument that is used to map subsurface geologic structure at depths up to 300 meters (m), 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... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arkansas, Arkansas River, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, All tags... Hydrology, Illinois, Louisiana, MRVA, Mississippi, Mississippi Alluvial Plain, Mississippi River, Mississippi River Valley Alluvial aquifer, Missouri, New Madrid Seismic Zone, Shellmound, Tennessee, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), WAUSP, Water Availability and Use Science Program, Water Resources, aeromagnetic surveying, aeroradiometric surveying, electromagnetic surveying, electromagnetics, engineering sciences, environment, geologic structure, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, hydrology, magnetic field, magnetics, potassium, radiometrics, resistivity, thorium, uranium, water resources, Fewer tags Digital surfaces of the bottom altitude and thickness of the Mississippi River Valley alluvial aquifer and site data within the Mississippi Alluvial Plain project region Bottom altitudes of the Mississippi River Valley alluvial aquifer (MRVA) were compiled from interpretations of subsurface geophysical logs (log picks) at about 10,000 boreholes and wells located throughout the Mississippi Alluvial Plain (MAP) that were available from previous investigations. Five sources of the bottom altitude data are listed numerically in the Cross Reference section (below) and correspond with the Ref_code listed in the .shp dataset. Borehole geophysical data (log picks) were referenced (corrected) to the National Elevation Dataset (NED) 10-meter digital elevation model (DEM; https://nationalmap.gov/elevation.html). Log picks that required a DEM correction of less than 20 feet were retained for... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arkansas, Arkansas River, Cross Validation, Crowley's Ridge, Geostatistics, All tags... Kriging, Louisiana, Lower Mississippi-Gulf Water Science, Mississippi, Mississippi Alluvial Plain, Mississippi River, Mississippi River Delta, Mississippi River Valley Alluvial Aquifer, Mississippi Valley, Missouri, Tennessee, USGS Science Data Catalog (SDC), Variogram modeling, hydrogeology, Fewer tags Airborne electromagnetic, magnetic, and radiometric survey of the Mississippi Alluvial Plain, Mississippi Embayment, and Gulf Coastal Plain, September 2021 - January 2022 Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired September 2021 to January 2022 along 27,204 line-kilometers (line-km) over the Mississippi Alluvial Plain (MAP), Mississippi Embayment, and Gulf Coastal Plain. Data were acquired by Xcalibur Multiphysics (Canada), Ltd. with three different airborne sensors: the 30Hz TEMPEST time-domain AEM instrument that is used to map subsurface geologic structure at depths up to 300 meters (m) 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... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arkansas, Arkansas River, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Illinois, All tags... Louisiana, MRVA, Mississippi, Mississippi Alluvial Plain, Mississippi River, Mississippi River Valley Alluvial aquifer, Missouri, New Madrid Seismic Zone, Shellmound, Tennessee, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), WAUSP, Water Availability and Use Science Program, ["Geophysics"], aeromagnetic surveying, aeroradiometric surveying, electromagnetic surveying, electromagnetics, engineering sciences, environment, geologic structure, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, hydrology, magnetic field, magnetics, potassium, radiometrics, resistivity, thorium, uranium, water resources, Fewer tags Combined results and derivative products of hydrogeologic structure and properties from airborne electromagnetic surveys in the Mississippi Alluvial Plain (ver. 2.0, July 2024) Electrical resistivity results from four regional airborne electromagnetic (AEM) surveys (Burton et al. 2024, Hoogenboom et al. 2023, 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. These products were first published using data from the first two AEM regional surveys, labeled with the year “2020” (Minsley et al. 2021, Burton et al. 2021). The 3D resistivity models and select derivative products were later updated by incorporating additional data from the two subsequent AEM surveys, labeled with the year “2022” (Burton et al. 2024, Hoogenboom et... Categories: Data, Data Release - Revised; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: 3D, Arkansas, Arkansas River, GGGSC, Geology, Geophysics, and Geochemistry Science Center, All tags... Illinois, Louisiana, MRVA, Mississippi, Mississippi Alluvial Plain, Mississippi River, Mississippi River Valley Alluvial aquifer, Missouri, Tennessee, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), WAUSP, Water Availability and Use Science Program, electromagnetic surveying, electromagnetics, engineering sciences, environment, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, hydrogeology, resistivity, three-dimensional, water resources, Fewer tags Waterborne Resistivity Inverted Models, Mississippi Alluvial Plain, 2016-2018 This data release consists of two .csv files of inverted models of electrical resistivity created from the processed resistivity data in the accompanying two data releases: (Miller and Others, 2018) and (2018 Raw and Processed, in progress). During 2016, 17, and 18, the U.S. Geological Survey conducted continuous resistivity profiling along 15 rivers or lakes in the Mississippi Alluvial Plain of Mississippi, Arkansas, Louisiana, and Missouri to characterize streambed hydraulic conductivity values. These techniques characterize the near surface geomorphology of the streambed that controls the recharge to the alluvial aquifer. These data can be used to map changes in the lithology of the streambed and identify areas... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Arkansas, Black River, Bogue Phalia, Cache River, Continuous Resistivity Profiling, All tags... Electrical Resistivity, Eutah Bend, Floodway, Geophysical Survey, Geophysics, Hydraulic Conductivity, Hydrogeology, Mississippi, Mississippi Alluvial Plain, Missouri, On Farm Storage, Quiver River, Roebuck Lake, Sky Lake, St. Francis River, Sunflower River, Tallahatchie River, USGS Science Data Catalog (SDC), White River, Yalobusha River, Yazoo River, inlandWaters, Fewer tags Ground-based electromagnetic survey, Shellmound, Mississippi, October 2018 Shallow soil characteristics were mapped near Shellmound, Mississippi, using the DualEM 421 electromagnetic sensor in October 2018. Data were acquired by towing the DualEM sensor on a wheeled cart behind an all-terrain vehicle (ATV), with the sensor at a height of 0.432 meters (m) above the ground surface. Approximately 175 line-kilometers of data were acquired over an area of nearly four square-kilometers, with 25 m separation between survey lines. Data were manually edited for noise sources such as powerlines or other buried structures and averaged to regular output soundings every 5 m along survey lines. The processed data were inverted to recover models of electrical resistivity structure as a function of depth... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: GGGSC, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geology, Geophysics, and Geochemistry Science Center, Leflore County, All tags... MRVA, Mississippi, Mississippi Alluvial Plain, Mississippi River Valley Alluvial aquifer, Shellmound, Tallahatchie River, USGS Science Data Catalog (SDC), dualEM, electromagnetic surveying, electromagnetics, engineering sciences, environment, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, resistivity, water resources, Fewer tags Airborne electromagnetic, magnetic, and radiometric survey, Shellmound, Mississippi, March 2018 (ver. 2.0, March 2024) Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired in late February to early March 2018 along 2,364 line-kilometers in the Shellmound, Mississippi study area. 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... Categories: Data, Data Release - Revised; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Greenwood, Hydrology, All tags... Leflore County, MRVA, Mississippi, Mississippi Alluvial Plain, Mississippi River Valley Alluvial aquifer, Shellmound, Sunflower County, Tallahatchie River, USGS Science Data Catalog (SDC), Water Resources, aeromagnetic surveying, aeroradiometric surveying, electromagnetic surveying, electromagnetics, engineering sciences, environment, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, magnetic anomaly maps, magnetic field, magnetics, radiometrics, resistivity, water resources, Fewer tags Ground-based time-domain electromagnetic data and resistivity models for the Mississippi Alluvial Plain Project The Mississippi Alluvial Plain (MAP) Project contains several geologic units which act as important aquifers. We collected several sets of time-domain electromagnetic (TEM) data consisting of two higher-density surveys and six regional-scale transects. The higher density surveys were collected to compare and contrast to other geophysical data not included in this data release, such as airborne electromagnetic, magnetic resonance sounding, and towed time-domain electromagnetic surveys . The transects, which were collected over the span of three years, cross the MAP study area from east-to-west, with about 100 km line spacing, and cover an area of nearly 100,000 square-kilometer. Each transect spans a distance of... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arkansas, Electromagnetic sounding, GPS measurement, Geology, Geophysics, and Geochemistry Science Center, Geophysics, All tags... Hydrogeology, Louisiana, MAP, Mississippi, Mississippi Alluvial Plain regional water availability, Mississippi alluvial plain, Missouri, TDEM, TEM, TEM, Tennessee, USGS Science Data Catalog (SDC), electromagnetic surveying, geophysics, geoscientificinformation, groundwater and surface-water interaction, hydrology, resistivity, time-domain electromagnetic sounding, time-domain electromagnetics, transient electromagnetic sounding, Fewer tags Historical (1940–2006) and recent (2019–20) aquifer slug test datasets used to model transmissivity and hydraulic conductivity of the Mississippi River Valley alluvial aquifer from recent (2018–20) airborne electromagnetic (AEM) survey data The Mississippi River Valley alluvial aquifer (“alluvial aquifer”) is one of the most extensively developed aquifers in the United States. The alluvial aquifer is present at the land surface in parts of southeastern Missouri, northeastern Louisiana, western Mississippi, western Tennessee and Kentucky near the Mississippi River, and throughout eastern Arkansas. Historical (1940–2006) and recent (2019–20) aquifer-test datasets were compiled to model transmissivity and hydraulic conductivity of the alluvial aquifer from recent (2018–19) airborne electromagnetic (AEM) survey data. This data release contains the aquifer-test and geophysical data along with computer codes written in Matlab version R2014a syntax used to... Categories: Data; Tags: Aeromagnetic surveying, Aeroradiometric surveying, Aquifer test, Arkansas, Dar Zarrouk parameters, All tags... Electric resistivity, Electric–hydraulic relations, Electromagnetic surveying, Electromagnetics, Engineering sciences, Geoelectric parameters, Geophysics, Geophysics, Geospatial datasets, Groundwater, Hydraulic conductivity, Hydrogeology, Hydrology, Illinois, Kentucky, Longitudinal conductance, Louisiana, Lower Mississippi Gulf Water Science Center, Magnetic field, Magnetics, Mean electric resistivity, Mississippi, Mississippi Alluvial Plain, Mississippi River, Mississippi River Valley Alluvial aquifer, Missouri, Oklahoma-Texas Water Science Center, Petrophysical relations, Pump Test, Radiometrics, Resistivity, Slug Test, Tennessee, Transmissivity, Transverse resistance, USGS Science Data Catalog (SDC), Water Availability and Use Science Program, Water Resources, Water resources, Fewer tags