KARL POHLMANN

EDUCATION:

M.S., Geosciences, Purdue University, West Lafayette, Indiana
B.S., Geology, University of Minnesota, Minneapolis

PROFESSIONAL INTERESTS:

Mr. Pohlmann's experience and interests include characterization and analysis of hydrogeologic frameworks, groundwater flow, and contaminant transport through field data collection, interpretation and modeling. Field investigations focus on delineation of local and regional groundwater flow systems in the Great Basin and Mojave Deserts. The modeling emphasizes a stochastic approach, incorporating spatial variability in hydrogeologic parameters and the uncertainty in estimating these parameters, and has been used for development of conceptual models, site characterization and closure, delineation of wellhead protection areas, and development of risk assessments.

RESEARCH AREAS:
Contaminant Transport; Hydrogeological Controls on Availability and Quality of Ground Water; Integrated Watershed Systems

JOURNAL ARTICLES

Ye, M.; Pohlmann, K.; Chapman, J.B.; 2008 (submitted).

Expert elicitation of recharge model probabilities for the Death Valley Regional Flow System. Journal of Hydrology.

Young, M.H.; Albright, W.H.; Pohlmann, K.F.; Pohll, G.M.; Zachritz, W.H.; Zitzer, S.F.; Shafer, D.S.; Nester, I.; Oyelowo, L.; 2006.

Incorporating parametric uncertainty in the design of alternative landfill covers in arid regions. Vadose Zone Journal. v.5. pp.742-750.

Ye, M.; Neuman, S.P.; Meyer, P.D.; Pohlmann, K.F.; 2005.

Sensitivity analysis and assessment of prior model probabilities in MLBMA with application to unsaturated fractured tuff. Water Resources Research. v.41.

CONFERENCE ABSTRACTS

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.

Carroll, Rosemary W.H.; Pohll, Greg; Pohlmann, Karl; Boyle, Doug; Garner, Chris; Knust, Anna; 2008.

Preliminary Model of a Coupled Groundwater-Surface Water System, Mason Valley, Nevada. MODFLOW and More: Ground Water and Public Policy. International Ground Water Modeling Center. Colorado School of Mines, Golden, CO USA.

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.

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, 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. 10.1109/ISTAS.2007.4362211.

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.

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.

Zhu, J.; Pohlmann, K.F.; Ye, M.; Shafer, D.S.; Carroll, R.W.; 2006.

Groundwater pathways from regions upgradient of potential Yucca Mountain repository. American Nuclear Society. Las Vegas, Nevada.

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.

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.

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.

Young, M.H.; Albright, W.H.; Pohlmann, K.F.; Pohll, G.M.; Zachritz, W.H.; Zitzer, S.F.; Shafer, D.S.; Nester, I.; Oyelowo, L.; 2006.

Designing Alternative Landfill Covers Using Parametric Uncertainty Analysis. American Society of Civil Engineers. Carefree, Arizona, USA.

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.

Shafer, D.S.; Martin, C.; Pohlmann, K.F.; Russell, C.E.; Ye, M.; Engelbrecht, J.; Minor, T.B.; Bishop, L.; 2005.

Establishing baseline environmental conditions for the proposed Yucca mountain repository, Nevada, U.S.A. Glasgow, Scotland.

Ye, M.; Pohlmann, K.F.; 2005.

Assessment of Uncertainty in Groundwater Recharge Models. NWRA. Reno.

Albright, W.H.; Young, M.H.; Pohlmann, K.F.; Zitzer, S.F.; 2004.

Sensitivity analysis as a design tool for alternative final landfill covers. U.S. Environmental Protection. Denver, Colorado.

Ye, M.; Meyer, P.; Neuman, S.; Pohlmann, K.F.; 2004.

Estimating Prior Model Probabilities Using an Entropy Principle. AGU. San Francisco.

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.