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Records 26 to 50 of 109 records from author Douglas Werkema

2019
Sherrod, L., W. Sauck, E. Simpson, D Werkema, AND J. Swiontek. Case Histories of GPR for Animal Burrows Mapping and Geometry. JOURNAL OF ENVIRONMENTAL AND ENGINEERING GEOPHYSICS. Environmental and Engineering Geophysical Society, Denver, CO, 24(1):1-17, (2019).
WERKEMA, D. D., S. D. ACREE, R. R. ROSS, AND R. G. FORD. Cost Effective Tools for Assessment of Infiltration at Green Infrastructure Stormwater Management Sites. U.S. Environmental Protection Agency, Washington, DC, EPA/600/F-19/141, 2019.
Werkema, D. Geophysical applications for mine waste site objectives. 2019 CLU-IN Webinar Series: ORD Mining and Mineral Processing Site - Site Characterization, Corvallis, OR, October 02, 2019.
Scruggs, C., M. Briggs, F. Day-Lewis, D Werkema, AND J. Lane. The Dual‐Domain Porosity Apparatus: Characterizing Dual Porosity at the Sediment/Water Interface. Groundwater. Wiley-Blackwell, Hoboken, NJ, 57(4):640-646, (2019). https://doi.org/10.1111/gwat.12846
Day-Lewis, F., M. Briggs, J. Lane Jr., AND D Werkema. Using Temperature Measurements to Map and Quantify Flow across the Sediment/Water Interface. 2019 Sediments Conference, New Orleans, LA, February 11 - 14, 2019.
2018
Saneiyan, S., D. Ntarlagiannis, D Werkema, AND A. Ustra. Geophysical Methods for Monitoring Soil Stabilization Processes. JOURNAL OF APPLIED GEOPHYSICS. Elsevier Science Ltd, New York, NY, 148:234-244, (2018).
Werkema, D. Geophysics for LUST Sites. 26th National Tanks Conference & Exposition (NTC), Louisville, KY, September 11 - 13, 2018.
Briggs, M., J. Harvey, S. Hurley, D. Rosenberry, T. McCobb, D Werkema, AND J. Lane. Hydrogeochemical controls on brook trout spawning habitats in a coastal stream. HYDROLOGY AND EARTH SYSTEM SCIENCES. EGS, 22(12):6383-6398, (2018). https://doi.org/10.5194/hess-22-6383-2018
Terry, N., F. Day-Lewis, D Werkema, AND J. Lane. MoisturEC: A New R Program for Moisture Content Estimation from Electrical Conductivity Data. GROUNDWATER MONITORING AND REMEDIATION. National Ground Water Association, Westerville, OH, 56(5):823-831, (2018). https://doi.org/10.1111/gwat.12650
2017
Day-Lewis, F., L. Slater, J. Robinson, C. Johnson, N. Terry, AND D Werkema. An overview of geophysical technologies appropriate for characterization and monitoring at fractured-rock sites. JOURNAL OF ENVIRONMENTAL MANAGEMENT. Elsevier Science Ltd, New York, NY, 204(2):709-720, (2017).
Abdel Aal, G., E. Atekwana, AND D Werkema. Complex conductivity response to silver nanoparticles in partially saturated sand columns. JOURNAL OF APPLIED GEOPHYSICS. Elsevier Science Ltd, New York, NY, 137:73-81, (2017).
Saneiyan, S., D. Ntarlagiannis, AND D Werkema. Induced Polarization for Characterizing and Monitoring Soil Stabilization Processes. 2017 AGU Fall Meeting, New Orleans, LA, December 11 - 15, 2017.
Terry, N., F. Day-Lewis, J. Robinson, L. Slater, K. Halford, A. Binley, J. Lane Jr., AND D Werkema. Scenario Evaluator for Electrical Resistivity Survey Pre-modeling Tool. Groundwater Monitoring & Remediation. Wiley-Blackwell Publishing, Hoboken, NJ, 55(6):885-890, (2017).
Sharma, S., L. Slater, D. Ntarlagiannis, D Werkema, AND Z. Szabo. Specific polarizability of sand–clay mixtures with varying ethanol concentration. Near Surface Geophysics. John Wiley & Sons, Inc., Hoboken, NJ, 15(6):615-624, (2017). https://doi.org/10.3997/1873-0604.2017049
2016
Briggs, M., S. Buckley, A. Bagtzoglou, D Werkema, AND J. Lane. Actively Heated High-Resolution Fiber-Optic Distributed Temperature Sensing to Quantify Flow Dynamics in Zones of Strong Groundwater Upwelling. WATER RESOURCES RESEARCH. American Geophysical Union, Washington, DC, 52(7):5179-5194, (2016).
Werkema, D. Geophysical detection methods/GTDSS. Sustainable and Healthy Communities BOSC Subcommittee, OH, Cincinnati, November 02 - 04, 2016.
Briggs, M., J. Lane, F. Day-Lewis, C. Snyder, S. Hurley, N. Hitt, E. White, Z. Johnson, D. Nelms, D Werkema, AND A. Bagtzoglou. Groundwater Flowpath Controls on Seepage Temperature and Future Cold Water Stream Habitat. 2016 Geological Society of America Fall Meeting, Denver, CO, September 25 - 28, 2016.
2015
Karaoulis, M., D Werkema, AND A. Revil. 2D Time-lapse Seismic Tomography Using An Active Time Constraint (ATC) Approach. Journal of Geophysics. Springer, New York, NY, 34(2):206-212, (2015).
Werkema, D, E. Atekwana, AND G. Abdel Aal. Spectral Induced Polarization Measurements of Nanoparticles in Laboratory Column Experiments. Symposium on the application of Geophysics to Environmental and Engineering Problems (SAGEEP), Austin, TX, March 22 - 26, 2015.
2014
Atekwana, E., G. Abdel Aal, AND D Werkema. Detection of Silver Nanoparticles in Vadose Zone Environments using Complex ConductivityMeasurements. Presented at 20th European Meeting of Environmental and Engineering Geophysics, Athens, GREECE, September 14 - 18, 2014.
Heenan, J., D. Ntarlagiannis, L. Slater, J. Nolan, E. Atekwana, C. Ross, E. Atekwana, B. Fathepure, AND D Werkema. Electrical Resistivity Imaging for Long-Term Monitoring of Contaminant Degradation. Presented at 2014 Gulf of Mexico Oil Spill & Ecosystem Science Conference, Mobile, AL, January 28, 2014.
2013
Personna, R., L. Slater, D. Ntarlagiannis, D. Werkema, AND Z. Szabo. Electrical Signatures of Ethanol-Liquid Mixtures: Implications for Monitoring Biofuels Migration in the Subsurface. JOURNAL OF CONTAMINANT HYDROLOGY. Elsevier Science Ltd, New York, NY, 144:99-107, (2013).
Abdel, G., E. Atekwana, AND D Werkema. On the Sensitivity of SIP to the Presence and Transport of Nanoparticles in Saturated Porous Media. Presented at American Geophysical Union Fall Meeting, San Francisco, CA, December 09 - 13, 2013.
Glaser, D., D. Werkema, R. Verstegg, R. Henderson, AND D. Rucker. Temporal GPR Imaging of an Ethanol Release Within a Laboratory-Scaled Sand Tank. JOURNAL OF APPLIED GEOPHYSICS. Elsevier Science Ltd, New York, NY, 86:133-145, (2013).