Skip to main content
  1. ScienceBase Catalog
  2. USGS Lower Mississippi-Gulf Water Science Center
  3. @ Mississippi Alluvial Plain (MAP) Regional Water-Availability Study
  4. Hydrogeologic Framework
  5. Towed and FloatingTransient Electromagnetic Surveys at Sites within the Mississippi Alluvial Plain: March and October, 2018
  6. Towed-transient electromagnetic survey data, Vicksburg, Mississippi, March 2018

Towed-transient electromagnetic survey data, Vicksburg, Mississippi, March 2018

Dates

Publication Date
Time Period
2018-03-30

Citation

Eric A. White, Carole D. Johnson, Wade H. Kress, James R. Rigby, Jim H. Alvis, and John W. Lane, Jr, 2022, Towed-transient electromagnetic survey data, Vicksburg, Mississippi, March 2018: U.S. Geological Survey.

Summary

Towed transient electromagnetic (tTEM) data were acquired along levees at select area near Vicksburg, Mississippi during March 2018. During the survey, 13.7 line-kilometers were collected in the focus area. Data were collected by members of the U.S. Geological Survey, Technology Development and Transfer Team, and the Aarhus University Hydrogeophysics Group. tTEM data acquired along the approximately 14 line-kilometers atop and along the toe of a levee near the banks of the Mississippi River in Warren County, Mississippi. Data were collected to characterize the subsurface resistivity structure of levees in support of a technical demonstration for the U.S. Army Corps of Engineers. tTEM data were collected using an Aarhus University HydroGeophysics [...]

Contacts

Point of Contact :
Eric A. White, U.S. Geological Survey, Water Mission Area, Observed Systems Division, Technical Development and Transfer Team
Originator :
Eric A. White, Carole D. Johnson, Wade H. Kress, James R. Rigby, Jim H. Alvis, John W. Lane, Jr
Metadata Contact :
Eric A White, U.S. Geological Survey, WATER
Publisher :
U.S. Geological Survey
Distributor :
Eric A White, U.S. Geological Survey, WATER

Attached Files

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

Towed-transient_electromagnetic_survey_data_Vicksburg_Mississippi_March2018.xml
Original FGDC Metadata
View 		117.8 KB application/fgdc+xml
20180330_VicksburgMS_tTEM_WGS84_Lat-Long__AVERAGED.xyz 6.69 MB chemical/x-xyz
20180330_VicksburgMS_tTEM_WGS84_Lat-Long__CULLED.xyz 3.16 MB chemical/x-xyz
20180330_VicksburgMS_tTEM_WGS84_UTM_15N__AVERAGED.xyz 6.74 MB chemical/x-xyz
20180330_VicksburgMS_tTEM_WGS84_UTM_15N__CULLED.xyz 3.11 MB chemical/x-xyz
20180330_VicksburgMS_tTEM_NAD83_Albers_Equal_Area_Conical__AVERAGED.xyz 6.78 MB chemical/x-xyz
20180330_VicksburgMS_tTEM_NAD83_Albers_Equal_Area_Conical__CULLED.xyz 3.11 MB chemical/x-xyz
Map_Towed-transient_electromagnetic_survey_data_Vicksburg_Mississippi_March2018.png thumbnail 5.35 MB image/png
20180330_Towed-Transient_Electromagnetic_Survey_Data_Vicksburg_MS_March_2018_Low-Moment_High-Moment_Data.png thumbnail 322.71 KB image/png

Purpose

Surface geophysical methods can provide information for the characterization of the subsurface structure of the earth for aquifer or engineering investigations. Towed- transient electromagnetic (tTEM) surveys provide resistivity soundings of the subsurface, which can be related to lithology and hydrogeology. In the tTEM method, electrical current is cycled through a wire in a transmitter loop (Tx), which in turn produces a static magnetic field. When the current is abruptly terminated, an instantaneous current is induced in the earth, and it moves downward and outward as the induced current decays with time. The decay is controlled by the resistivity of the earth. A receiver (Rx) towed behind the Tx loop in an offset configuration, measures the secondary magnetic field as a function of time (dB/dt). Decaying voltage measurements at the receiver are recorded, and during processing are converted to apparent resistivity, which can be inverted to recover the depth-dependent resistivity structure of the earth.
Preview Image

Map

Map Preview

Communities

  • USGS Lower Mississippi-Gulf Water Science Center

Tags

Provenance

Data source
Input directly

Item Actions

View Item as ...

JSON ATOM ISO XML

Save Item as ...

JSON FGDC MODS XML ISO XML

View Item...

Metrics