Jenny Chapman

EDUCATION:

M.S., Geology, University of Texas at Austin
B.S. Geology, Sul Ross State University, Alpine, Texas

PROFESSIONAL INTERESTS:

Ms. Chapman is interested in helping solve problems related to waste disposal, contaminant tranpsort, and water supply in arid regions where paleoclimates may continue to influence flow systems or pose uncertainties for the future. Previous and current work rely heavily on isotopic (stable and radiogenic) and geochemical tracers for evaluating recharge and paleohydrologic systems. Borehole logging, time-domain reflectometry, and analytic solute-flux modeling are other techniques that have been useful in her work.

RESEARCH AREAS:

Hydrology of the Unsaturated Zone; Contaminant Transport; Hydrogeological Controls on Availability and Quality of Ground Water; Global Environmental Hydrology

JOURNAL ARTICLES

Zhu, J.; Pohlmann, K. F.; Chapman, J. B.; Russell, C. E.; Carroll, R. W. H.; Shafer, D. S.; , 2010.

Sensitivity of Solute Advective Travel Time to Porosities of Hydrogeologic Units. Ground Water. v.48. doi:10.1111/j.1745-6584.2009.00664.x.

Reeves, D.M.; Pohlmann, K.; Pohll, G.; Ye, M.; Chapman, J., 2009 (in press).

Incorporation of conceptual and parametric uncertainty into radionuclide flux estimates from a fractured granite rock mass. Stochastic Environmental Research and Risk Assessment.

Ye, M.; Cooper, C.A.; Chapman, J.B.; Gillespie, D.; Zhang, Y., 2009.

Geologically based Markov chain model for simulating tritium transport with uncertain conditions in a nuclear-stimulated natural gas reservoir. SPE Reservoir Evaluation & Engineering. v.12. n.6. pp.974-984. 10.2118/114920-PA.

Hassan, A.E.; Bekhit, H.M.; Chapman, J.B., 2009.

Using Markov Chain Monte Carlo to quantify parameter uncertainty and its effect on predictions of a groundwater flow model. Environmental Modeling and Software. v.24. n.6. pp.149-163.

Ye, M.; Pohlmann, K.; Chapman, J.; Pohll, G.; Reeves, D.M., 2009.

A model-averaging method for assessing groundwater conceptual model uncertainty. Ground Water. 10.1111/j.1745-6584.2009.00633.x.

Hassan, A.E.; Bekhit, H.M.; Chapman, J.B., 2008.

Uncertainty assessment of a stochasticc groundwater flow model using GLUE analysis. Journal of Hydrology. v.362. pp.89-109.

Ye, M.; Pohlmann, K.; Chapman, J.B., 2008.

Expert elicitation of recharge model probabilities for the Death Valley Regional Flow System. Journal of Hydrology. v.354. pp.102-115.

Reimus, P.; Pohll, G.M.; Mihevc, T.M.; Chapman, J.B.; Haga, M.; Lyles, B.F.; Kosinski, S.; Niswonger, R.; Sanders, P., 2003.

Testing and parameterizing a conceptual model for solute transport in a fractured granite using multiple tracers in a forced-gradient test. Water Resources Research. v.12. s.39. pp.1356-1370.

Chapman, J.B.; Lewis, B.; Litus, G., 2003.

Chemical and isotopic evaluation of water sources to the fens of South Park, Colorado. Environmental Geology. v.5. s.43.

CONFERENCE ABSTRACTS

Chapman, Jenny; Cooper, Clay; Ye, Ming; Hodges, Rex; Hutton, Richard; Craig, Jack; Pauling, Tom, 2009.

Balancing Subsurface Restrictions And Resource Access Under Conditions Of Changing Land Use At The Rulison Underground Nuclear Test Site, Piceance Basin, Colorado, USA. Waste Management Symposium. Phoenix.

Chapman, Jenny; Pohlmann, Karl; Pohll, Greg; Russell, Charles, 2009.

Role of Groundwater Monitoring for Closure of Underground Nuclear Tests on the Nevada Test Site. American Geophysical Union. American Geophysical Union. San Francisco.

Zhu, J.; Pohlmann, K. F.; Chapman, J. B.; Russell, C. E.; Carroll, R. W. H.; Shafer, D. S., 2008.

Uncertainty and Sensitivity of Contaminant Travel Times from Nevada the Test Site to Yucca Mountain. 2008 Devils Hole Workshop. Death Valley, CA.

Ye, M.; Pohlmann, K.F.; Chapman, J.B.; Pohll, G.M.; Reeves, D.M., 2008.

Assessing recharge and hydrostratigraphic model uncertainty in the Climax Mine area of the Nevada Test Site. MODFLOW and MORE 2008: Ground Water and Public Policy. Golden, CO.

Hassan, Ahmed; Zhang, Yong; Bekhit, Hesham; Chapman, Jenny, 2008.

Design of Groundwater Monitoring Networks Considering Conceptual Model and Parametric Uncertainty. American Geophysical Union. San Francisco.

Pohlmann, K. F.; Zhu, J.; Chapman, J. B.; Russell, C. E.; Carroll, R. W. H.; Shafer, D. S., 2008.

Contaminant Travel Times from the Nevada Test Site to Yucca Mountain: Sensitivity to Porosity. AGU 2008 Fall Meeting. San Francisco, California, U.S.A.

Chapman, Jenny; Pohll, Greg; Hassan, Ahmed; Pohlmann, Karl, 2007.

Using Uncertainty to Guide Characterization, Closure, and Long-term Management of an Underground Nuclear Test Site. International Symposium on Technology and Society: Risk, Uncertainty, Vulnerability. IEEE. Las Vegas, Nevada.

Reeves, D.M.; Schultz, R.; Bingham, C.; Pohlmann, K.; Russell, C.; Chapman, J., 2007.

Characterization of preferential pathways at the T-Tunnel Complex, Rainier Mesa, Nevada. American Geophysical Union Fall Meeting. San Francisco.

Pohlmann, K.F.; Ye, M.; Pohll, G.M.; Chapman, J.B., 2007.

Use of Numerical Groundwater Modeling to Evaluate Uncertainty in Conceptual Models of Recharge and Hydrostratigraphy. Institute of Electrical and Electronics Engineers. June 1-2, 2007, Las Vegas, NV.

Chapman, J.B.; Pohll, G.M.; Hassan, A.; Pohlmann, K.F., 2007.

Using Uncertainty to Guide Characterization, Closure, and Long-term Management of an Underground Nuclear Test Site. Institute of Electrical and Electronics Engineers. June 1-2, 2007, Las Vegas, NV.

Cooper, C.A.; Ye, M.; Chapman, J.B., 2006.

Tritium transport through a low-permeability natural gas reservoir. TOUGH Symposium 2006, May 15-17. Lawrence Berkeley National Laboratory. Berkeley, Calif.

Ye, M.; Pohlmann, K.F.; Pohll, G.M.; Chapman, J.B., 2006.

Assessing Recharge and Geological Model Uncertainty at the Climax Stock of the Death Valley Regional Flow System. American Geophysical Union. San Francisco, California.

Reeves, D.M.; Pohlmann, K.F.; Pohll, G.M.; Chapman, J.B.; Ye, M., 2006.

Incorporation of model and parameter uncertainty in predicting radionuclide fluxes from the Climax Granite Intrusive. American Geophysical Union. San Francisco, California.

Pohlmann, K.F.; Zhu, J.; Ye, M.; Chapman, J.B.; Russell, C.E.; Shafer, D.S.; Carroll, R.W., 2006.

Evaluation of Groundwater Pathways and Travel Times from the Nevada Test Site to the Potential Yucca Mountain Repository. American Geophysical Union. San Francisco, California.

Ye, M.; Pohlmann, K.F.; Chapman, J.B.; Shafer, D.S., 2006.

On Evaluation of Recharge Model Model Uncertainty, a Priori and a Posteriori. American Nuclear Society. Las Vegas, Nevada.

Hassan, A.; Bekhit, H.; Chapman, J.B., 2006.

Uncertainty Reduction for Parameters of a Seawater Intrusion Model using Markov Chain Monte Carlo. Denmark.

Pohlmann, K.F.; Zhu, J.; Ye, M.; Carroll, R.W.; Chapman, J.B.; Russell, C.E.; Shafer, D.S., 2006.

Evaluation of Groundwater Pathways and Travel Times From the Nevada Test Site to the Potential Yucca Mountain Repository. AGU. San Francisco, CA.

Pohlmann, K.F.; Ye, M.; Pohll, G.M.; Chapman, J.B., 2005.

Assessing recharge model uncertainty: Case study using the Death Valley Regional Flow System Model. AGU. San Francisco, CA.

Hassan, A.; Chapman, J.B., 2005.

Verification and Uncertainty Reduction for Amchitka Underground Nuclear Test Models using Bayesian Conditioning. American Association for the Advancement of Science. Kodiak, AK.

Marty, R.; Sanders, P.; Chapman, J.B.; Evans, C.S., 2005.

Screening Risk Assessment for Possible Radionuclides in the Amchitka Marine Environment. Kodiak, Alaska.

Weisbrod, N.; Dragila, M.; Cooper, C.A.; Graham, C.; Cassidy, J., 2004.

The relationship between convection of atmospheric gases and evaporation of saline pore water in surface-exposed fractures. TOUGH Symposium 2006. Lawrence Berkeley National Laboratory. Berkeley, CA.

Shafer, D.S.; Chapman, J.B.; Hassan, A.; Pohll, G.M.; Pohlmann, K.F.; Young, M.H., 2003.

Long-term stewardship and risk management for inactive nuclear test sites in the United States. Oxford, England.

Hassan, A.; Pohll, G.M.; Pohlmann, K.F.; Chapman, J.B., 2002.

Groundwater flow and transport modeling: Three approaches for three different environments. The International Conference on Water Resources Management in Arid Regions (WaRMAR). Kuwait.