Processed ground-based EM survey data

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 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. This data release contains the processed data that have been averaged and culled to produce final resistivity models. Digital data of the processed soundings are provided and fields are defined in the data dictionary.

Data e Risorse

Campo Valore
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier USGS:5d9cc463e4b03661629238e9
metadata_type geospatial
modified 20200820
old-spatial -90.31430, 33.57960, -90.26980, 33.61270
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 07e8cb26998782eaf558661adcd5c45dde7acfd8
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-90.31430, 33.57960], [-90.31430, 33.61270], [ -90.26980, 33.61270], [ -90.26980, 33.57960], [-90.31430, 33.57960]]]}
theme {geospatial}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • amerigeo
  • amerigeoss
  • ckan
  • electromagnetic-surveying
  • electromagnetics
  • engineering-sciences
  • environment
  • geo
  • geology-geophysics-and-geochemistry-science-center
  • geophysics
  • geoscientificinformation
  • geoss
  • gggsc
  • groundwater
  • hydrogeology
  • leflore-county
  • mississippi
  • mississippi-alluvial-plain
  • mississippi-river-valley-alluvial-aquifer
  • mrva
  • national
  • north-america
  • resistivity
  • shellmound
  • tallahatchie-river
  • united-states
  • usgs-5d9cc463e4b03661629238e9
  • water-resources
isopen False
license_id notspecified
license_title License not specified
maintainer Michael D.M. Pace
maintainer_email mpace@usgs.gov
metadata_created 2025-11-21T00:31:46.328932
metadata_modified 2025-11-21T00:31:46.328935
notes 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 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. This data release contains the processed data that have been averaged and culled to produce final resistivity models. Digital data of the processed soundings are provided and fields are defined in the data dictionary.
num_resources 2
num_tags 28
title Processed ground-based EM survey data