Folders: ROOT > ScienceBase Catalog > USGS Hydrogeophysics Branch > HGB Data Releases > Electrical Geophysical Data Collected in the Scott M. Matheson Wetlands Preserve Near Moab, Utah ( Show all descendants )
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ROOT _ScienceBase Catalog __USGS Hydrogeophysics Branch ___HGB Data Releases ____Electrical Geophysical Data Collected in the Scott M. Matheson Wetlands Preserve Near Moab, Utah Filters
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The electrical conductivity of the earth is used to help infer lithological and pore fluid properties. Various geophysical methods can provide estimates of the distribution of below ground electrical conductivity, with each method having certain limitations. This data release presents raw and processed results from land-based and water-based frequency domain electromagnetic induction imaging (EMI) data collected from March 31 to April 2, 2015. Data were primarily collected by walking throughout the wetland and riparian zones with the GEM-2 instrument (Geophex, Ltd.) at approximately 1 m off the ground in horizontal coplanar (ski flat) mode. A survey along a section of the Colorado River in a kayak was also collected...
Vertical electrical soundings (VES) are used to develop depth-resolved models of aquifer resistivity by making electrical potential measurements at increasingly larger electrode spacing, with the array centered around a common point. Variations in modeled electrical resistivity with depth can be used to infer groundwater salinity and preferential fresh groundwater flow zones. Each of the 4 VES measurement integrates approximately 11 individual electrical soundings with 4 electrodes driven into the soil in a linear Wenner array with electrode spacings ranging from 1 to 40 m. Data were collected manually with a SuperSting electrical resistivity meter (AGI - Advanced Geosciences, Inc) and recorded by hand in a field...
Categories: Data;
Tags: Groundwater,
InlandWaters,
Moab,
Scott M. Matheson Wetlands Preserve,
Surface Water,
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