Geoffrey C. Bohling

Associate Scientist, Geohydrology, Kansas Geological Survey

Address Information

Kansas Geological Survey

1930 Constant Avenue

Lawrence, KS 66047-3724

Phone: (785) 864-2093

Fax: (785) 864-5317

E-mail: geoff@kgs.ku.edu

Education

• Ph.D. (Hydrogeology), University of Kansas, 1999 (with honors)
• M.S. (Hydrogeology), University of Wisconsin-Madison, 1988
• B.S. (Geophysics) / B.A. (English), University of Kansas, 1986 (with highest distinction)

Interests and Expertise

• Statistical and geostatistical applications in the earth sciences
• Field- and regional-scale aquifer characterization using geostatistical and inverse modeling techniques
• Statistical and scientific programming in Matlab, Fortran, Java, VBA/Excel, and C
• Exploratory data analysis and statistical modeling with R/S-Plus
• Statistical classification (data mining) techniques
• Development of petrophysical data analysis techniques

Additional Computer Skills

• Familiar with Python, ArcGIS, MS Access, SQL, Oracle
• Web development in HTML, Java, Perl/CGI, and SVG
• Experience with Mac OS X, UNIX/Linux, and Windows

Professional Experience

• Associate Scientist, Geohydrology Section, Kansas Geological Survey, 2008-present
  • Continuing research on advanced aquifer characterization techniques
    • Investigating approaches for developing quantitative aquifer models based on abundant but qualitative drillers' log data
    • Developing direct-push hydraulic profiling data analysis techniques
    • Investigating hydraulic tomography and other advanced well test analysis techniques
  • Developed Small County, an interactive exercise in the geological characterization of petroleum reservoirs
• Assistant Scientist, Geohydrology Section, Kansas Geological Survey, 1999-2008
  • Research on aquifer characterization and contaminant transport
    • Developing data inversion techniques for hydraulic tomography
    • Developing Java application and web pages for the Interactive Ground-water Tutor
  • Assisting with development of a geologic model for a large gas field
    • Automating data processing procedures
    • Exploring combined application of neural network and Markov chain simulation to subsurface modeling
  • Developing ADP and other data analysis and visualization tools for CHRONOS
  • Providing guest lectures for Data Analysis in Engineering and Natural Science
  • Developing methodologies and software for petrophysical data analysis, including:
    • The Oz Machine, a Java applet for generation of synthetic stratigraphic sequences and corresponding log suites
    • Kipling.xla: An Excel add-in for nonparametric regression and classification
    • Petrophysical analysis and data mining components of GEMINI, web-based software for well log analysis and reservoir characterization
  • Performing statistical and geostatistical analyses of High Plains aquifer water levels
• Research Staff, Mathematical Geology Section, Kansas Geological Survey, 1988-1998
  • Pursued research on aquifer characterization and contaminant transport
  • Pursued research on classification problems in the earth sciences, including regionalized classification and non-parametric classification techniques
  • Participated in numerous projects involving statistical and geostatistical analysis of earth science data sets
  • Developed, documented, and presented software, including:
    • PfEFFER (well log analysis)
    • GSLIB-style programs for regionalized classification
    • Simulation of oil field discovery sequences
    • SUPRPUMP (aquifer test analysis)
• Graduate Research Assistant, Department of Geology and Geophysics, University of Wisconsin-Madison, 1987-1988
  • Investigated use of ground penetrating radar to map water table
• Student Research Assistant, Geophysics and Geochemistry Section, Kansas Geological Survey, 1985-1986
  • Developed a program for simulating hydrocarbon maturation in a developing sedimentary basin
• Laboratory Teaching Assistant, Department of Physics and Astronomy, The University of Kansas, 1984-1985

Selected Professional Activities and Awards

• Deputy Chair, Hydrology Section Groundwater Technical Committee, American Geophysical Union, 2010-2012
• 2008 Editors' Citation for Excellence in Refereeing for Water Resources Research
• Associate Editor, Ground Water, 2007-Present
• Editorial Board Member, Computers & Geosciences, 2004-Present
• Provided extensive technical and editorial assistance for Statistics and Data Analysis in Geology, Third Edition by John C. Davis
• Treasurer, International Association for Mathematical Geology, 2000-2004
• Book Review Editor, Computers & Geosciences, 1996-2000

Selected Publications

Peer-reviewed Journals

• Bohling, G.C., Liu, G., Knobbe, S., Reboulet, E., Hyndman, D.W., Dietrich, P., and Butler, J.J., Jr., 2012, Geostatistical analysis of centimeter-scale hydraulic conductivity variations at the MADE site, Water Resources Research, v. 48, W02525, doi:10.1029/2011WR010791
• Dogan, M., Van Dam, R.L., Bohling, G.C., Butler, J.J., Jr., and Hyndman, D.W., 2011, Hydrostratigraphic analysis of the MADE site with full-resolution GPR and direct-push hydraulic profiling, Geophysical Research Letters, v. 38, L06405, doi:10.1029/2010GL046439
• Bohling, G.C., and Butler, J.J., Jr., 2010, Inherent limitations of hydraulic tomography, Ground Water, vol. 48, no. 6, p. 809-824, doi:10.1111/j.1745-6584.2010.00757.x
• Liu, G., Butler, J.J., Jr., Bohling, G.C., Reboulet, E., Knobbe, S. and Hyndman, D.W., 209, A new method for high-resolution characterization of hydraulic conductivity, Water Resour. Res., v. 45, W08202, DOI:10.1029/2009WR008319. [Abstract online]
• Bohling, G.C., 2009, Sensitivity and Resolution of Tomographic Pumping Tests in an Alluvial Aquifer, Water Resources Research, v. 45, W02420, doi:10.1029/2008WR007249
• Liu, G., Bohling, G.C., and Butler, J.J., Jr., 2008, Simulation assessment of the direct-push permeameter for characterizing vertical variations in hydraulic conductivity, Water Resources Research, v. 44, W02432, doi:10.1029/2007WR006078
• Bohling, G.C., 2008, Information Fusion in Regularized Inversion of Tomographic Pumping Tests, in Quantitative Information Fusion for Hydrological Sciences (Studies in Computational Intelligence 79), edited by X. Cai and T.-C. J. Yeh, Springer-Verlag, pp. 137-162, doi:10.1007/978-3-540-75384-1
• Bohling, G.C., Butler, J.J., Jr., Zhan, X., and Knoll, M.D., 2007, A Field Assessment of the Value of Steady-shape Hydraulic Tomography for Characterization of Aquifer Heterogeneities, Water Resources Research, vol. 43, no. 5, W05430, doi:10.1029/2006WR004932
• Dubois, M. K., Bohling, G.C., and Chakrabarti, S., 2007, Comparison of four approaches to a rock facies classification problem, Computers & Geosciences, vol. 33, no. 5, p. 599-617, doi:10.1016/j.cageo.2006.08.011
• Bohling, G.C., and Doveton, J.H., 2006, The Oz Machine: A Java applet for interactive instruction in geological log interpretation, Geosphere, vol. 2, no. 5, p. 169-174, doi:10.1130/GES00046.1.
• Macfarlane, P. A., Bohling, G.C., Thompson, K.W., and Townsend, M.A., Helping Students Make the Transition from Novice Learner of Ground-water Concepts to Expert Using the Plume Busters Software, Journal of Geoscience Education, vol. 54, no. 5, p. 610-619
• Bohling, G.C., 2005, Chronos Age-Depth Plot: A Java application for stratigraphic data analysis, Geosphere, vol. 1, no. 2, p. 78-84, doi:10.1130/GES00009.1.
• Bohling, G.C., Zhan, X., Butler, J.J., Jr., and Zheng, L., 2002, Steady-shape analysis of tomographic pumping tests for characterization of aquifer heterogeneities, Water Resources Research, vol. 38, no. 12, 1324, doi:10.1029/2001WR001176.
• Bohling, G.C., and Butler, J.J., Jr., 2001, lr2dinv: A finite-difference model for inverse analysis of two-dimensional linear or radial groundwater flow, Computers & Geosciences, vol. 27, no. 10, p. 1147-1156, doi:10.1016/S0098-3004(01)00036-X
• Butler, J.J., Jr., McElwee, C., and Bohling, G., 1999, Pumping tests in networks of multilevel sampling wells: motivation and methodology: Water Resources Research, vol. 35, no. 11, p. 3553-3560.
• Harff, J., Bohling, G.C., Endler, R., Davis, J.C., and Olea, R.A., 1999, Gliederung holozäner Ostseesedimente nach physikalischen Eigenschaften [Structure of Holocene sediments from the Baltic Sea according to petrophysical properties], Petermanns Geographische Mitteilungen, vol. 143, p. 50-55.
• Bohling, G.C., Davis, J.C., and Olea, R.A., and Harff, J., 1998, Singularity and nonnormality in the classification of compositional data, Mathematical Geology, v. 30, no. 1, pp. 5-20.
• Bohling, G.C., 1997, GSLIB-style programs for discriminant analysis and regionalized classification, Computers & Geosciences, v. 23, no. 7, pp. 739-761. (Code available here.)
• McElwee, C.D., Bohling, G.C., and Butler, J.J., Jr., 1994, Sensitivity analysis of slug tests I: The slugged well, Journal of Hydrology, v. 164, pp. 53-67.
• McElwee, C.D., Butler, J.J., Jr., Bohling, G.C., and Liu, W., 1994, Sensitivity analysis of slug tests II: Observation wells, Journal of Hydrology, v. 164, pp. 69-87.
• Butler, J.J., Jr., Bohling, G.C., Hyder, Z., and McElwee, C.D., 1994, The use of slug tests to describe vertical variations in hydraulic conductivity, Journal of Hydrology, v. 156, pp. 137-162.
• Bohling, G.C., and Davis, J.C., 1993, A Fortran program for Monte Carlo simulation of oil field discovery sequences, Computers & Geosciences, v. 19, no. 10, pp. 1529-1543.
• Bohling, G.C., and McElwee, C.D., 1992, SUPRPUMP: An interactive program for well test analysis and design, Ground Water , v. 30, no. 2, p. 262-268.

Open File Reports

• Bohling, G.C., and B. B. Wilson, Statistical and Geostatistical Analyses of the Kansas High Plains Water Table Elevations, 2006 Measurement Campaign, Kansas Geological Survey Open File Report 2006-20, 43 pp.
• Bohling, G.C., and B. B. Wilson, 2005, Statistical and Geostatistical Analyses of the Kansas High Plains Water Table Elevations, 2005 Measurement Campaign, Kansas Geological Survey Open File Report 2005-6, 43 pp.
• Dubois, M.K., G.C. Bohling, and S. Chakrabarti, 2004, Comparison of Rock Facies Classification Using Three Statistically Based Classifiers, Kansas Geological Survey Open File Report 2004-64.
• Bohling, G.C., X. Zhan, M. D. Knoll, and Butler, J.J., Jr., Hydraulic Tomography and the Impact of A Priori Information: An Alluvial Aquifer Example, KGS Open-File Report 2003-71, 16 pp. ( PDF)
• Bohling, G.C., and M. K. Dubois, 2003, An Integrated Application of Neural Network and Markov Chain Techniques to Prediction of Lithofacies from Well Logs, KGS Open-File Report 2003-50, 6 pp. (PDF)
• Doveton, J. H., and Bohling, G.C., Reading the Rocks from Logs and Oz Machine Java Applet, KGS Open-File Report 2003-78. (web site)

Software

• Bohling, G.C., 2004, User's Guide to CHRONOS Age-Depth Plot Version 1.00, Kansas Geological Survey Open File Report 2004-55, 10 pp.
• Bohling, G.C., and Doveton, J.H., 2000, Kipling.xla: An Excel Add-in for Nonparametric Regression and Classification, Kansas Geological Survey.
• Bohling, G., Doveton, J., Guy, B., Watney, L., and Bhattacharya, S., 1998, PfEFFER 2.0 Manual, Kansas Geological Survey.
• Bohling, G.C., McElwee, C. D., Butler, J.J., Jr., and Liu, W., 1990, User's guide to well test design and analysis with SUPRPUMP version 1.0, KGS Computer Program Series 90-3, 95 pp.

Software Workshops and Presentations

• PfEFFER workshop, Kansas Geological Survey, Lawrence, KS, October 2004
• Kipling workshop, Amoco Petrophysics School, Tulsa, OK, January 1999
• PfEFFER workshop, Phillips 66, Odessa, TX, March 1998
• PfEFFER presentation in workshop at DOE's National Petroleum Technology Office, Tulsa, OK, February 1998
• PfEFFER workshop, Phillips 66, Bartlesville, OK, April 1997
• PfEFFER presentation in Petroleum Technology Transfer Council workshop, Golden, CO, February 1997
• SUPRPUMP presentation at Assessment and Mitigation at Hazardous Waste Sites: A Sixth Research Update, UCSD Extension, La Jolla, CA, July 1992

Proceedings Volumes

• Bohling, G.C., 1999, A radial-coordinate groundwater flow model for analysis of well tests in heterogeneous formations, in Proceedings of the Fifth Annual Conference of the IAMG, August 6-11, 1999, Trondheim, Norway, p. 693-697.
• Harff, J., Bohling, G.C., Endler, R., Davis, J.C., Olea, R.A., and Schwarzacher, W., 1999, Holocene sediments from the Baltic Sea basins as indicators for the paleoenvironment, in Proceedings of the Fifth Annual Conference of the IAMG, August 6-11, 1999, Trondheim, Norway, p. 195-200.
• Bohling, G.C., 1997, Canonical variate and principal component analyses of the Darss Sill granulometic data, in Proceedings of the Third Annual Conference of the IAMG, CIMNE, Barcelona, p. 163-168.
• Bohling, G.C., Doveton, J.H., and Hoth, P., 1997, Probabilistic classification and prediction of facies types in a mid-continent cretaceous deltaic-marine sequence from petrophysical log descriptors using a CMAC procedure, in Proceedings of the Third Annual Conference of the IAMG, CIMNE, Barcelona, p. 242-247.
• Bohling, G.C., Harff, J., and Davis, J.C., 1991, Regionalized classification: Ideas and applications, in Proceedings of the Fifth Canadian/American Conference on Hydrogeology: Parameter Identification and Estimation for Aquifer and Reservoir Characterization, National Water Well Association, pp. 229-242.

Book and Software Reviews

• Bohling, G.C., 2008, Review of "Petroleum Geostatistics" by Jef Caers, Computers & Geosciences, v. 34., no. 3, pp. 299-300, doi:10.1016/j.cageo.2007.07.002.
• Bohling, G.C., 2007, Review of "Parameter Estimation and Inverse Problems" by Aster, Borchers, and Thurber, Computers & Geosciences, v. 33, no. 7, pp. 987-988, doi:10.1016/j.cageo.2007.03.003.
• Bohling, G.C., 2001, Review of "VARIOWIN: Software for Spatial Data Analysis in 2D" by Yvan Pannetier, Computers & Geosciences, v. 27, no. 1, pp. 125-127.
• Bohling, G.C., 2000, Review of "GS+ for Windows, Version 3.1" by Gamma Design Software, Computers & Geosciences, v. 26., no. 7, pp. 855-863.
• Bohling, G.C., 1998, Review of "EnvironmentalStats for S-Plus", Version 1.0, by Stephen P. Millard, Computers & Geosciences, v. 24, no. 6, pp. 597-602.
• Bohling, G.C., 1998, Review of "Introduction to Geostatistics: Applications in Hydrogeology", by P. K. Kitanidis, Computers & Geosciences, v. 24, no. 3, pp. 293-294.
• Bohling, G.C., 1998, Review of "Applied Contaminant Transport Modeling: Theory and Practice", by Chunmiao Zheng and Gordon D. Bennett, Computers & Geosciences, v. 24, no. 2, pp. 207-208.
• Bohling, G.C., 1994, Review of "GSLIB: Geostatistical Software Library and User's Guide" by Clayton V. Deutsch and A. G. Journel, Computers & Geosciences, v. 20, no. 6, pp. 1063-1064.

Grants and Contracts Awarded

• Bohling, G.C., Butler, J.J., Jr., Reboulet, E.C., Wilson, B.B., and Whittemore, D.O., Getting the information modelers need: Extracting hydrostratigraphic information from drillers' logs, Kansas Water Resources Institute, Mar. 2012-Feb. 2014, $30,000.
• Butler, J.J., Jr., R.L. Stotler, D.O. Whittemore, and Bohling, G.C., High Plains aquifer calibration monitoring well program, $25,000, Kansas Water Office, 2012.
• Butler, J.J., Jr., Liu, G., and Bohling, G.C., Integrated use of surface and subsurface NMR for measuring and mapping saturated hydraulic conductivity in three dimensions, $20,963 (Phase 1--2010-11) and $225,000 (Phase 2--2011-2013), Vista Clara, Inc.
• Bohling, G.C., and Doveton, J., Small County: Web-based Instruction in the Geological Characterization of Petroleum Reservoirs, January 2008-December 2009, $148,132.
• Butler, J. J., Jr., Bohling, G.C., G. Liu, and others at Michigan State University and University of Alabama, Collaborative Research: High-resolution Dynamic Characterization of Transport Pathways: Providing New Insights into Subsurface Processes, March 2008-February 2011, National Science Foundation, $162,335.
• Dubois, M., Carr, T., Byrnes, A., Bohling, G.C., Battacharya, S., Doveton, J., Hugoton Asset Management Project: An Industry-University Study of Reservoir Systems in Southwest Kansas Hugoton Embayment and the Oklahoma Panhandle, January 2004-December 2005, $360,000.
• Davis, J.C., Bohling, G.C., and Olea, R. A., Numerical Correlation of Late-Quaternary Sediments from the Baltic Sea, Kattegat, Skagerrak and North Atlantic with Regard to their Role as Paleoclimate Indicators, National Science Foundation, $13,920, 2001-2002.
• Watney, W.L., Bohling, G.C., Battacharya, S., Look, K., Doveton, J., Carr, T., and Gerlach, P., Geo-Engineering Modeling Through Internet Informatics (GEMINI), Department of Energy, $877,271, September 2000.
• Butler, J.J., Jr., Bohling, G.C., McElwee, C.D., and Zheng, L., A new method for identification of preferential flow paths at sites of groundwater contamination, Hydrologic Sciences Program, National Science Foundation, $226,538, August 1999.
• Butler, J.J., Jr., McElwee, C.D., and Bohling, G.C., Identification of Preferential Flow Paths at Sites of Groundwater Contamination, National Science Foundation, $49,998, 28 pp., May 1995.
• Butler, J.J., Jr., and Bohling, G.C., Assessment of hydraulic and tracer tests at the Waste Isolation Pilot Plant, Sandia National Laboratory, $9,767, Oct. 1995.

Kansas Geological Survey, Geohydrology
Updated Aug. 10, 2012
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