Frederick D Day-Lewis
Biography
- Research Hydrologist, Earth System Processes Division, Hydrogeophysics Branch, U.S. Geological Survey, Storrs CT, 2010 - present
- Research Faculty (gratis), U. Connecticut, Center for Integrative Geosciences and Dept. of Civil and Environmental Engineering, 7/2012 - present
- Hydrologist , Office of Ground Water, Branch of Geophysics, U.S. Geological Survey,Storrs, CT, 2003-2010
- Assistant Professor Dept. of Geology, Bucknell University, Lewisburg, PA, 2001 - 2005
- President, American Geophysical Union Near Surface Geophysics Focus Group, 2014 - 2016
- Council Member, American Geophysical Union, 2012-2016
- Vice President, Environmental and Engineering Geophysical Society, 2013 - 2014
- Board Member, Environmental and Engineering Geophysical Society, 2012-2014
- Associate Editor, Ground Water Journal, 2003-2008, 2013-present
- Associate Editor, Geosphere, 2009 - present
- Associate Editor, Water Resources Research, 2007-2012
- Associate Editor, Hydrogeology Journal, 2002 - 2006
- Fellow, Geological Society of America, 2015
- USGS Water Mission Area Research Lecturer, 2011
- Editor’s Citation for Excellence in Refereeing, Water Resources Research, 2008
- EPA STAR Fellowship, 1997-2000
PUBLICATIONS
Koch, F.W., Voytek, E.B., Day-Lewis, F.D., Healy, R.W., Briggs, M.A., Lane, J.W., and Werkema, D., in press, 1DTempPro V.2: New Features for Inferring Groundwater/Surface-Water Exchange, Groundwater.
Roubinet, Delphine, Irving, J., and Day-Lewis, F.D., 2015, Development of a new semi-analytical model for cross-borehole flow experiments in fractured media, Advances in Water Resources, vol. 76 , pp. 97-108, doi:10.1016/j.advwatres.2014.12.002.
Singha, K., Day-Lewis, F.D., Johnson, T., and Slater, L.D., 2015, Advances in interpretation of subsurface processes with time-lapse electrical imaging, Hydrological Processes, doi: 10.1002/hyp.10280, 28 p.
Robinson, J., Slater, L., Johnson, T., Shapiro, A., Tiedeman, C., Ntarlagiannis, D., Johnson, C., Day-Lewis, F., Lacombe, P., Imbrigiotta, T. and Lane, J., 2015, Imaging Pathways in Fractured Rock Using Three-Dimensional Electrical Resistivity Tomography, Groundwater, doi: 10.1111/gwat.12356.
Swanson, R.D., Binley, A., Keating, K., France, S., Osterman, G., Day-Lewis. F.D., and K. Singha, 2015, Anomalous solute transport in saturated porous media: Relating transport model parameters to electrical and nuclear magnetic resonance properties, Water Resources Research, 51, 1264–1283, doi:10.1002/2014WR015284.
Briggs, M. A., Day-Lewis, F.D., Zarnetske, J.P., and Harvey, J.W., 2015, A physical explanation for the development of redox microzones in hyporheic flow, Geophysical Research Letters, 42, doi:10.1002/2015GL064200.
Johnson, T.C., Versteeg, R.J., Day-Lewis, F.D., Major, W. and Lane, J.W., 2015, Time-Lapse Electrical Geophysical Monitoring of Amendment-Based Biostimulation. Groundwater. doi: 10.1111/gwat.12291.
Briggs, M.A., Day-Lewis, F.D., Ong, J.B., Harvey, J.W., and Lane, J.W., 2014, Dual-domain mass-transfer parameters from electrical hysteresis: Theory and analytical approach applied to laboratory, synthetic streambed, and groundwater experiments, Water Resources Research, 50, 8281–8299, doi:10.1002/2014WR015880.
Anderson, B. Naftz, D.L., Day-Lewis, F.D., Henderson, R., Rosenberry, D.O., Jewell, P., 2014, Quantity and Quality of Groundwater Discharge in a Hyper-Saline Lake Environment, J. Hydrology, Journal of Hydrology, 512 (2014) 177–194. DOI: 10.1016/j.jhydrol.2014.02.040.
Briggs, M.A., Walvoord, M.A., McKenzie, J.M., Voss, C.I., Day-Lewis, F.D., and Lane, J.W., 2014, New permafrost is forming around shrinking Arctic lakes, but will it last?, Geophysical Research Letters, 41, 1585–1592, doi:10.1002/2014GL059251.
Voytek, E.B., A. Drenkelfuss, F.D. Day-Lewis, R. Healy, D. Werkema, and J.W. Lane, Jr., 2014, 1DTempPro: Analyzing Temperature Profiles for Groundwater/Surface-Water Exchange, Ground Water, doi:10.1111/gwat.12051.
Briggs, M.A., Day-Lewis, F.D., Ong, J.B.T., Curtis, G.P., and J.W. Lane, 2013, Simultaneous estimation of local-scale and flow path-scale dual-domain mass transfer parameters using geoelectrical monitoring, Water Resources Research, 49, 5615–5630, doi:10.1002/wrcr.20397.
Briggs, M.A., Voytek, E.B., Day-Lewis, F.D., Rosenberry, D.O., and Lane, J.W., 2013, Understanding Water Column and Streambed Thermal Refugia for Endangered Mussels in the Delaware River, Environmental Science & Technology, vo. 47, no. 20, 11423-11431, DOI: 10.1021/es4018893
Mwakanyamale, K., Day-Lewis, F.D., Slater, L.D., 2013, Statistical mapping of zones of focused groundwater/surface-water exchange using fiber-optic distributed temperature sensing, Water Resources Resarch, 49, 6979–6984, doi:10.1002/wrcr.20458.
Swanson, R.D., Singha, K., Day-Lewis, F.D., Binley, A.M, Keating, K., and Haggerty, R., 2012, Direct Geoelectrical Evidence of Mass Transfer at the Laboratory-Scale, Water Resources Research. Vol. 48, No. 10, DOI: 10.1029/2012WR012431.
Johnson, T.C., Slater, L.D., Ntarlagiannis, D., Day-Lewis, F.D., and Elwaseif, M., 2012, Monitoring groundwater/surface-water interaction using time-series and time-frequency analysis of transient three-dimensional electrical resistivity changes, Water Resources Research, vol. 48, W07506, doi:10.1029/2012WR011893.
Mwakanyamale, K., Slater, L., Day-Lewis, F.D., Elwaseif, M., Ntarlagiannis, D., and Johnson, C.D., 2012, Spatially variable stage-driven groundwater-surface water interaction inferred from time-frequency analysis of distributed temperature sensing data, Geophysical Research Letters, doi:10.1029/2011GL050824.
Pidlisecky, A., Singha, K., and Day-Lewis, F.D., 2011, A Novel Parameterization for Improved Time-Lapse Tomographic Imaging of Hydrologic Processes, Geophysical Journal International, vol. 187, no. 1, 214-224, doi: 10.1111/j.1365-246X.2011.05131.x
Brosten, T.R., Day-Lewis, F.D., Schultz, G.M.,Curtis, G.P., and Lane, J.W., Jr., 2011, Using frequency-domain electromagnetic surveys to characterize a former uranium mill site, Naturita, CO, Journal of Applied Geophysics, doi:10.1016/j.jappgeo.2011.02.004.
Day-Lewis, F.D., Johnson, C.D., and Paillet, F.L., 2011, FLASH: A Computer Program for Flowmeter Log Analysis for Single Holes, Ground Water, doi: 10.1111/j.1745-6584.2011.00798.x.
Singha, K., Li L., Day-Lewis, F.D., Regberg, A.B., 2011, Quantifying Transport Processes: Are Chemically Conservative Tracers Geophysically Conservative?, Geophysics., vol. 76, no. 1, doi: 10.1190/1.3511356.
Slater, L.D., Ntarglagiannis, D., Day-Lewis, F.D., Mwakyanamale, K., Versteeg, R.J., Ward, A., Strickland, C., Johnson, C.D., and Lane, J.W., Jr., 2010, Use of electrical imaging and distributed temperature sensing methods to characterize surface water–groundwater exchange regulating uranium transport at the Hanford 300 Area, Washington, Water Resources Research, 46, W10533, doi:10.1029/2010WR009110. (WRR Editor’s ‘Featured Article’)
Johnson, T.C., Versteeg, R.J., Ward, A., Day-Lewis, F.D., and Revil, A., 2010, Improved hydrogeophysical characterization and monitoring through parallel modeling and inversion of time-domain resistivity and induced polarization data, Geophysics, vol. 75, no. 4, 27-41.
Henderson, R.D., Day-Lewis, F.D., Harvey, C.F., Abarca, E., Karam, H.N., Liu, L. and Lane, J.W., Jr., 2010, Marine Electrical Resistivity Imaging of Submarine Ground-Water Discharge: Sensitivity Analysis and Application in Waquoit Bay, Massachusetts, USA, Hydrogeology Journal, vol. 18, no. 1, 10.1007/s10040-009-0498-z, 173-185. (HJ ‘Editor’s Choice Article’)
Cohen, Denis, Person, Mark., Wang, Peng, Gable, C.W., Hutchinson, Deborah, Marksamer, Andee, Dugan, Brandon, Kooi, Henk, Groen, Koos, Lizarralde, Daniel, Evans, R.L., Day-Lewis, F.D. , and Lane, J.W., 2010, Origin and Extent of Fresh Paleowaters Beneath the Atlantic Continental Shelf, New England, Ground Water, DOI: 10.1111/j.1745-6584.2009.00627.x.
Slater, L., Day-Lewis, F.D., Ntarlagiannis, D., O’Brien, M., and Yee, N., 2009, Geoelectrical measurement and modeling of biogeochemical breakthrough behavior during microbial activity, Geophysical Research Letters, 36, L14402, doi:10.1029/2009GL038695.
Henderson, R.D., Day-Lewis, F.D., and Harvey, C.F, 2009, Investigation of aquifer-estuary interaction using wavelet analysis of fiber-optic temperature data, Geophysical Research Letters, 36, L06403, doi:10.1029/2008GL036926.
Singha, K., Pidlisecky, A., Day-Lewis, F.D., and Gooseff, M.N., 2008, Electrical characterization of non-Fickian transport in groundwater and hyporheic systems, Water Resources Research, 44, W00D07, doi:10.1029/2008WR007048.
Day-Lewis, F.D., Singha, K. 2008, Geoelectrical Inference of Mass Transfer Parameters Using Temporal Moments, Water Resources Research, Vol. 44, W05201, doi:10.1029/2007WR006750, 6p.
Culkin, S.L., Singha, K., and Day-Lewis, F.D., 2008, Implications of Rate-Limited Mass Transfer for Aquifer Storage Recovery Efficiency, Groundwater, doi: 10.1111/j.1745-6584.2008.00435.x, 15p.
Robinson, A.A., Binley, A., Crook, N., Day-Lewis, F.D., Ferre, T.P.A., Grauch, V.J.S., Knight, R., Knoll, M., Lakshmi, V., Miller, R., Nyquist, J., Pellerin, L., Singha, K., and Slater, L., 2008, A Vision for, and review of, electrical and magnetic geophysical instrumentation for advancing process-based watershed hydrological research, Hydrologic Processes, DOI:10.1002/hyp.6963, 32p.
Hyndman, D.W., Day-Lewis, F.D., and Singha, K. (editors), 2007, Subsurface Hydrology: Data Integration for Properties and Processes, Geophysical Monograph Series Vol. 171, American Geophysical Union: Washington DC, ISBN 978-0-87590-437-5, 253 p.
Day-Lewis, F.D., Chen, Y., and Singha, K., 2007, Moment Inference from Tomograms, Geophysical Research Letters, Vol. 34, L22404, doi: 10.1029/2007GL031621, 6p.
Singha, K., Day-Lewis, F.D., and Lane, J.W., Jr., 2007, Geoelectrical Evidence for Bicontinuum Transport in Ground Water, Geophysical Research Letters, Vol. 34 L12401, doi:10.1029/2007GL030019, 5p.
Marksamer, A.J., Brown, K., Person, M.A., Bish, D., Sauer, P., Krothe, N., Day-Lewis, F.D., Lane, J.W., Jr., Licht, K., Kooi, H., Dugan, B., and Willett, M., 2007, Integrating Geophysical, Hydrologic, Geochemical and Isotopic Data with Numerical Modeling to Understand the Freshwater-Saltwater Interface on Nantucket Island, Massachusetts, in Subsurface Hydrology: Data Integration for Properties and Processes, American Geophysical Union: Washington DC, p. 143-159.
Singha, K., Day-Lewis, F.D., and Moysey, S., 2007, Accounting for Tomographic Resolution in Hydrogeophysical Data Integration, in Subsurface Hydrology: Data Integration for Properties and Processes, American Geophysical Union: Washington DC, p. 227-241.
Lane, J.W., Jr., Day-Lewis, F.D., and Joesten, P.K., 2007, Monitoring Engineered Remediation with Borehole Radar, The Leading Edge, Vol. 26, No. 8, 1032-1035.
Kemna, A., Binley, A.M., Day-Lewis, F.D., Englert, A., Tezkan, B., Vanderborght, J., and Vereecken, H., 2006, Solute and contaminant transport monitoring, in Applied Hydrogeophysics, Vereecken, H. (ed.): NATO Science Series IV: Earth and Environmental Sciences, , Vol. 71, Springer Netherlands, 395 p. ISBN: 978-1-4020-4912-5. DOI: 10.1007/978-1-4020-4912-5_1, p. 117-159.
Lane, J.W., Jr., Day-Lewis, F.D., and Casey, C.C., 2006, Geophysical Monitoring of Field-Scale Vegetable Oil Injections for Biostimulation, Ground Water, doi: 10.1111/j.1745-6584.2005.00134.x, 14p.
Day-Lewis, F.D., White, E.A., Belaval, M., Johnson, C.D., and Lane, J.W., Jr., 2006, Continuous Resistivity Profling to Delineate Submarine Ground-Water Discharge—Examples and Limitations, The Leading Edge, Vol. 25, No. 6, 724-728.
Day-Lewis, F.D., Gray, M.B., Garfield, R.L., and Day-Lewis, A.D.F., 2006, An on-campus well field for hydrogeophysics education and undergraduate research, Journal of Geoscience Education, vol. 54, No. 4, 480-486.
Day-Lewis, F.D.,Singha, K., and Binley, A. M., 2005, Applying Petrophysical Models to Radar Traveltime and Electrical Resistivity Tomograms: Resolution-Dependent Limitations, Journal of Geophysical Research, Vol. 110, B08206, doi:10.1029/2004JB005369, 17p.
Day-Lewis, F.D.,and Lane, Jr., J. W., 2004, Assessing the Resolution-Dependent Utility of Tomograms for Geostatistics, Geophysical Research Letters, Vol. 31, L07503, doi:10.1029/2004GL019617, 4p.
Day-Lewis, F.D., Lane, J.W., Jr., and Gorelick, S.M., 2004, Combined Interpretation of Radar, Hydraulic and Tracer Data from a Fractured-Rock Aquifer, Hydrogeology Journal, doi: 10.1007/s10040-004-0372-y, Vol. 14, No. 1-2, 1-14.
Day-Lewis, F.D., Lane, J.W., Jr., Harris, J.M., and Gorelick, S.M., 2003, Time-Lapse Imaging of Saline Tracer Tests Using Cross-Borehole Radar Tomography, Water Resources Research, Vol. 39, No. 10, 14 p.,1290, doi:10.1029/2002WR001722.
Day-Lewis, F.D., Harris, J.M., and Gorelick, S.M., 2002, Time-lapse Inversion of Crosswell Radar Data, Geophysics, Vol. 67, No. 6, 1740-1752.
Day-Lewis, F.D., Hsieh, P.A., and Gorelick, S.M., 2000, Identifying fracture-zone geometry using simulated annealing and hydraulic-connection data, Water Resources Research, Vol. 36, No. 7, 1707-1721.
Science and Products
Fiber-Optic Distributed Temperature Sensing Technology Demonstration and Evaluation Project
Fiber-optic distributed temperature sensing (FO-DTS) is an emerging technology that has promise for characterizing estuary-aquifer and stream-aquifer interaction and for identifying transmissive fractures in bedrock boreholes.
Geophysics for USGS Groundwater/Surface Water Interaction Studies
Understanding the interaction of groundwater and surface water is essential to water managers and hydrologists for the development of effective water-resource policy, protection, and management. The USGS conducts applied research to evaluate the use of new or emerging hydrogeophysical tools and methods to improve our understanding of groundwater/surface-water exchange.
Optimized Enhanced Bioremediation through 4D Geophysical Monitoring and Autonomous Data Collection, Processing, and Analysis
The USGS Office of Ground Water, Branch of Geophysics (OGW BG) is collaborating on an applied research project to evaluate the use of new hydrogeophysical tools to remotely monitor and visualize subsurface bioremediation amendment emplacement and transport in near real-time. The project, funded by the U.S. Department of Defense Environmental Security Technology Certification Program, could...
Fiber-Optic Distributed Temperature Sensing in Waquoit Bay, Massachusetts
In 2006 the USGS Office of Groundwater, Branch of Geophysics (OGW BG) conducted a technology demonstration and evaluation project in Waquoit Bay, East Falmouth, Massachusetts, to evaluate the use of fiber-optic distributed temperature sensing (FO-DTS). In this project, the USGS used FO-DTS to investigate aquifer-estuary interaction by monitoring submarine groundwater discharge in Waquoit Bay....
Example data from MoisturEC: a new R program for moisture content estimation from electrical conductivity data
This dataset includes example data used for demonstration of the moisturEC program. This includes inverted electrical resistivity data, model resolution from the inversion, point moisture information, and conductivity-saturation calibration information. The data are from a field site in Coventry, CT outfitted with five, Decagon 5TE moisture probes, arranged along a 28 m transect at different...
Model data for pore network modeling of the electrical signature of solute transport in dual-domain media, U.S. Geological Survey data release: U.S. Geological Survey data release
Pore network simulations were performed to investigate the electrical geophysical
signature of solute-transport in dual-domain media. This data release includes model
results, source code, and laboratory data used in the accompanying paper, as
explained in the upper-level "readme" file.
Residence time controls on the fate of nitrogen in flow‐through lakebed sediments
For many glacial lakes with highly permeable sediments, water exchange rates control hydrologic residence times within the sediment‐water interface (SWI) and the removal of reactive compounds such as nitrate, a common pollutant in lakes and groundwater. Here we conducted a series of focused tracer injection experiments in the upper 20 cm of...
Hampton, Tyler B.; Zarentske, Jay P.; Briggs, Martin A.; Singha, Kamini; Harvey, Judson W.; Day-Lewis, Frederick D.; Dehkordy, Farzaneh MahmoodPoor; Lane, John W. Multi-scale preferential flow processes in an urban streambed under variable hydraulic conditions
Spatially preferential flow processes occur at nested scales at the sediment-water interface (SWI), due in part to sediment heterogeneities, which may be enhanced in flashy urban streams with heavy road sand influence. However, several factors, including the flow-rate dependence of preferential hyporheic flow and discrete groundwater discharge...
Dehkordy, Farzaneh MahmoodPoor; Briggs, Martin A.; Day-Lewis, Frederick D.; Singha, Kamini; Krajnovich, Ashton; Hampton, Tyler B.; Zarnetske, Jay P.; Scruggs, Courtney R.; Bagtzoglou, Amvrossios C. The dual‐domain porosity apparatus: Characterizing dual porosity at the sediment/water interface
The characterization of pore-space connectivity in porous media at the sediment/water interface is critical to understanding contaminant transport and reactive biogeochemical processes in zones of groundwater and surface-water exchange. Previous in situ studies of dual-domain (i.e., mobile/less-mobile porosity) studies have been limited to...
Scruggs, Courtney R.; Briggs, Martin A.; Day-Lewis, Frederick D.; Werkema, Dale D.; Lane, Jr., John W. Evaluating long-term patterns of decreasing groundwater discharge through a lake-bottom permeable reactive barrier
Identifying and quantifying groundwater exchange is critical when considering contaminant fate and transport at the groundwater/surface-water interface. In this paper, areally distributed temperature and point seepage measurements are used to efficiently assess spatial and temporal groundwater discharge patterns through a glacial-kettle lakebed...
McCobb, Timothy D.; Briggs, Martin A.; LeBlanc, Denis R.; Day-Lewis, Frederick D.; Johnson, Carole D. Direct observations of hydrologic exchange occurring with less‐mobile porosity and the development of anoxic microzones in sandy lakebed sediments
Quantifying coupled mobile/less‐mobile porosity dynamics is critical to the prediction of biogeochemical storage, release, and transformation processes in the zone where groundwater and surface water exchange. The recent development of fine‐scale geoelectrical monitoring paired with pore‐water sampling in groundwater systems enables direct...
Briggs, Martin A.; Day-Lewis, Frederick D.; Dehkordy, Farzaneh Mahmood Poor; Hampton, Tyler B.; Zarnetske, Jay P.; Scruggs, Courtney R.; Singha, Kamini; Harvey, Judson W.; Lane, Jr., John W. Simulation of less‐mobile porosity dynamics in contrasting sediment water interface porous media
Considering heterogeneity in porous media pore size and connectivity is essential to predicting reactive solute transport across interfaces. However, exchange with less‐mobile porosity is rarely considered in surface water/groundwater recharge studies. Previous research indicates that a combination of pore‐fluid sampling and geoelectrical...
Dehkordy, Farzaneh MahmoodPoor; Briggs, Martin A.; Day-Lewis, Frederick D.; Bagtzoglou, Amvrossios C. MoisturEC: a new R program for moisture content estimation from electrical conductivity data
Noninvasive geophysical estimation of soil moisture has potential to improve understanding of flow in the unsaturated zone for problems involving agricultural management, aquifer recharge, and optimization of landfill design and operations. In principle, several geophysical techniques (e.g., electrical resistivity, electromagnetic induction, and...
Terry, Neil; Day-Lewis, Frederick D.; Werkema, Dale D.; Lane, John W. Scenario Evaluator for Electrical Resistivity survey pre-modeling tool
Geophysical tools have much to offer users in environmental, water resource, and geotechnical fields; however, techniques such as electrical resistivity imaging (ERI) are often oversold and/or overinterpreted due to a lack of understanding of the limitations of the techniques, such as the appropriate depth intervals or resolution of the methods....
Terry, Neil; Day-Lewis, Frederick D.; Robinson, Judith L.; Slater, Lee D.; Halford, K.J.; Binley, Andrew; Lane, John W.; Werkema, Dale D. Surface geophysical methods for characterising frozen ground in transitional permafrost landscapes
The distribution of shallow frozen ground is paramount to research in cold regions, and is subject to temporal and spatial changes influenced by climate, landscape disturbance and ecosystem succession. Remote sensing from airborne and satellite platforms is increasing our understanding of landscape-scale permafrost distribution, but typically...
Briggs, Martin A.; Campbell, Seth; Nolan, Jay; Walvoord, Michelle Ann; Ntarlagiannis, Dimitrios; Day-Lewis, Frederick D.; Lane, John W. Application of frequency- and time-domain electromagnetic surveys to characterize hydrostratigraphy and landfill construction at the Amargosa Desert Research Site, Beatty, Nevada
In 2014 and 2015, the U.S. Geological Survey (USGS), conducted frequency-domain electromagnetic (FDEM) surveys at the USGS Amargosa Desert Research Site (ADRS), approximately 17 kilometers (km) south of Beatty, Nevada. The FDEM surveys were conducted within and adjacent to a closed low-level radioactive waste disposal site located at the ADRS....
White, Eric A.; Day-Lewis, Frederick D.; Johnson, Carole D.; Lane, John W. 1DTempPro V2: new features for inferring groundwater/surface-water exchange
A new version of the computer program 1DTempPro extends the original code to include new capabilities for (1) automated parameter estimation, (2) layer heterogeneity, and (3) time-varying specific discharge. The code serves as an interface to the U.S. Geological Survey model VS2DH and supports analysis of vertical one-dimensional temperature...
Koch, Franklin W.; Voytek, Emily B.; Day-Lewis, Frederick D.; Healy, Richard W.; Briggs, Martin A.; Lane, John W.; Werkema, Dale D. Imaging pathways in fractured rock using three-dimensional electrical resistivity tomography
Major challenges exist in delineating bedrock fracture zones because these cause abrupt changes in geological and hydrogeological properties over small distances. Borehole observations cannot sufficiently capture heterogeneity in these systems. Geophysical techniques offer the potential to image properties and processes in between boreholes. We...
Robinson, Judith; Slater, Lee; Johnson, Timothy B.; Shapiro, Allen M.; Tiedeman, Claire; Ntlargiannis, Dimitrios; Johnson, Carole D.; Day-Lewis, Frederick D.; Lacombe, Pierre; Imbrigiotta, Thomas; Lane, John W.
Scenario Evaluator for Electrical Resistivity (SEER) Survey Pre-Modeling Tool
The USGS Scenario Evaluator for Electrical Resistivity (SEER) is a quick and simple Excel-based decision support tool practitioners can use to assess the likely outcome of using two-dimensional (2D) electrical resistivity imaging for site characterization and remediation monitoring.
Fractured Rock Geophysical Toolbox Method Selection Tool (FRGT-MST)
The Fractured Rock Geophysical Toolbox Method Selection Tool (FRGT-MST) is an Excel-based tool for identification of geophysical methods most likely to be appropriate for project goals and site conditions.