Data from: Electrical geophysical monitoring of subsurface solute transport in low-relief agricultural landscapes in response to a simulated major rainfall event

<p dir="ltr">This dataset derives from an intensive field experiment that involved the use of time-lapse electrical resistivity imaging (ERI) to track the fate and transport of an injected salt tracer (KBr) in shallow groundwater during a simulated rainfall event (150 mm in 12 hours) in a ditch-drained field. The study was led by a team of researchers from Rutgers University, USDA-ARS, University of Delaware, Morehead State University, and Landcare Research. The research team conducted the experiment in a 1.5-ha agricultural field located on the University of Maryland Eastern Shore Research and Teaching Farm in Princess Anne, MD. The experiment lasted four days (06/20/2022 to 06/23/2022) and focused on a 150-m2 plot that was situated in the southwestern corner of the field near an open drainage ditch. Resources in this dataset include the following:</p><ul><li><i><u>1D Vertical Electrical Sound</u></i><i> – vertical electrical resistivity tomography surveys; data were collected during the simulated rainfall event.</i></li><li><i><u>3D Time domain induced polarization survey</u></i><i> - time domain complex conductivity (TDIP) survey using the 96 Syscal Pro/Switch (Iris Instruments, France); data were collected as background data prior to the simulated rainfall event.</i></li><li><i><u>3D Timelapse electrical resistivity imaging</u></i><i> - electrical conductivity surveys using a radial array configuration with a total radial spread of ∼24 degrees; data were collected during and after the simulated rainfall event.</i></li><li><i><u>Ground penetrating radar</u></i><i> - ground penetrating radar was collected for Robinson et. al. 2020 and for Thompson et al. 2025; data were collected as background data prior to the simulated rainfall event.</i></li><li><i><u>Hydrologic data</u></i><i> - water levels in shallow wells measured by HOBO pressure transducers and time domain reflectometry (TDR) measurement of volumetric soil moisture content; data were collected during and after the simulated rainfall event.</i></li><li><i><u>Soil data</u></i><i> - soils data (texture) and geophysical measurements of soil cores for characterization of field site; data were collected as background data prior to the simulated rainfall event</i></li><li><i><u>Tracer data</u></i><i> – concentrations of Br- measured in ten multilevel groundwater samplers; data were collected after the simulated rainfall event</i></li></ul><p dir="ltr">For more information about this dataset contact: Josh Thompson (<a href="mailto:jht51@scarletmail.rutgers.edu" target="_blank"><u>jht51@scarletmail.rutgers.edu</u></a>); Anthony Buda (<a href="mailto:anthony.buda@usda.gov" target="_blank"><u>anthony.buda@usda.gov</u></a>); Amy Shober (<a href="mailto:ashober@udel.edu" target="_blank"><u>ashober@udel.edu</u></a>). Also see publications by Thompson et al. (2025) and Robinson et al. (2019) for detailed methodology.<br></p>

Tags: drainage, electrical-resistivity-imaging, hydrogeophysics, subsurface-nutrient-transport
Organization: Department of Agriculture