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David Ahlfeld

Professor, Associate Department Head
UMassAmherst


Featured Projects

Research and Background

Groundwater flow and contaminant transport, Adaptation of water resource systems to a changing climate, Water resources engineering, Systems analysis, mathematical modeling and numerical methods

Contact Info

David Ahlfeld
ahlfeld@engin.umass.edu
224B Marston Hall, College of Engineering, Department of Civil and Environmental Engineering University of Massachusetts Amherst, 130 Natural Resources Road,
Amherst, Massachusetts 01003

Research in Action

Education

Ph.D. Civil Engineering, Princeton University, 1987; M.A. Civil Engineering, Princeton University, 1985; B.S. Environmental Resources Engineering, Humboldt State University - Arcata, CA, 1983

Publications

Publications

K. Mulligan and D.P. Ahlfeld. Model Reduction for Combined Surface Water/Groundwater Management Formulations. "J. Water Resources Planning Management". Submitted 2014

Lillian (Clark) Jeznach, Christina Stauber, Thomas Matthews, John Tobiason, David Ahlfeld. Modeling Reservoir Contaminant Impacts on Water Quality: Reactive Constituents. "Journal of Environmental Engineering". Submitted 2014

Lillian Clark, John Tobiason, David Ahlfeld. Modeling Reservoir Contaminant Impacts on Water Quality: Conservative Constituent. "Journal of the American Water Works Association", number doi: 10.5942/jawwa.2014.106.0062, 2014.

K. Mulligan, E. Yang, C. Brown and D. Ahlfeld. Assessing Groundwater Policy with Coupled Economic-Groundwater Hydrologic Modeling. "Water Resources Research", number doi: 10.1002/2013WR013666, 2014.

K. Mulligan and D.P. Ahlfeld. Model Reduction for Combined Surface Water/Groundwater Management Formulations. "Water Resources Management". Submitted 2013

B. Towler, A. Hoar and D. Ahlfeld. Ecohydrology and Fish Passage Engineering: Legacy of Denil and the Call for a More Inclusive Paradigm. "Journal of Water Resources Planning and Management", vol DOI: 10.1061/(ASCE)WR.1943-5452.0000185, 2012.

D.P. Ahlfeld and Y. Hoque, "Impact of Simulation Model Solver Performance on Groundwater Management Problems", Ground Water, Vol 46, no. 5 September-October 2008, pgs 716-726.

D.P. Ahlfeld and G. Baro-Montes, “Solving Unconfined Groundwater Flow Management Problems with Successive Linear Programming”, Journal of Water Resources Planning and Management, Vol. 134, No. 5, September 1, 2008.

David Pulido-Velazquez, David Ahlfeld, Joaquin Andreu, Andres Sahuquillo, “Reducing the computational cost of unconfined groundwater flow in conjunctive-use models at basin scale assuming linear behaviour: The case of Adra-Campo de Dalias”, Journal of Hydrology Volume 353, Issues 1-2, , 20 May 2008, Pages 159-174.

D.M.L. Mas and D.P. Ahlfeld, “"Comparing artificial neural networks and regression models for predicting fecal coliform concentrations." Hydrologic Sciences Journal, August 2007, vol. 52, no. 4, pp. 713-731.

Russell Adams, David Ahlfeld, and Ashmita Sengupta, "Investigating the Potential for Ongoing Pollution from an Abandoned Pyrite Mine", Mine Water and the Environment (2007) 26: 2-13

D.W. Ostendorf, E.S. Hinlein, D.P. Ahlfeld and J.T. DeJong, “Calibrated models of deicing agent solids, pavement texture, and specific conductivity of highway runoff”, Journal of Environmental Engineering, December 2006, Vol. 132(12), pgs 1562-1571.

M.G. Kennedy, D.P. Ahlfeld, D.P. Schmidt, J.E. Tobiason, “Three Dimensional Modeling for Estimation of Hydraulic Retention Time in a Reservoir”, Journal of Environmental Engineering, September 2006, Vol 132 (9), pgs 976-984.

Ahlfeld, D.A., Barlow, P.M., and Mulligan, A.E., 2005, GWM-A ground-water management process for the U.S. Geological Survey modular ground-water model (MODFLOW-2000): U.S. Geological Survey Open-File Report 2005-1072, 124 p. D.P. Ahlfeld, “Nonlinear Response of Streamflow to Groundwater Pumping For A Hydrologic Streamflow Model”, Advances in Water Resources, January 2004, Vol 27, pgs 349-360.

D.P. Ahlfeld and M. Minihane, “Storm Flow from First Flush Precipitation in Stormwater Design”, Journal of Irrigation and Drainage, July/August 2004, 130(4), pp 269-276.

D. P. Ahlfeld, A. Joaquin, J.E. Tobiason and D. Mas, “Case Study: Impact of Reservoir Stratification on Interflow Travel Time”, Journal of Hydraulic Engineering, December 2003, Vol 129, No. 12, pp. 966-975.

Barlow, P.M., D.P. Ahlfeld, and D.C. Dickerman, “Conjunctive-Management Models for Sustained Yield of Stream-Aquifer Systems”, Journal of Water Resources Planning and Management, January-February 2003, Vol. 129, No. 1, pgs 35-48.

Selected Conference Proceedings

M. A. Laverty, D. P. Ahlfeld, J. E. Tobiason, “Three-dimensional numerical modeling of hydrodynamics and transport in the Wachusett Reservoir”, Proc. Of World Environmental and Water Resources Congress, ASCE, Providence, RI, May 16-20, 2010

C. L. Stauber, J.E. Tobiason, B. Sojkowski and D.P. Ahlfeld, “Two-Dimensional Modeling of Contaminant Spills to a Drinking Water Supply Reservoir”, Proc. Of World Environmental and Water Resources Congress, ASCE, Providence, RI, May 16-20, 2010

Kelcy Adamec, Richard N. Palmer, Austin Polebitski, David Ahlfeld, Scott Steinschneider, Brian Pitta, Casey Brown, “Evaluation of Climate Change Impacts to Reservoir Operations within the Connecticut River Basin”, Proc. Of World Environmental and Water Resources Congress, ASCE, Providence, RI, May 16-20, 2010

D.P. Ahlfeld and G. Baro-Montes, “Alternative Groundwater Management Algorithms for a Large-Scale Transient Problem”, Proc. of the World Environmental and Water Resources Congress, American Society of Civil Engineers, Tampa, FL, May 15-19, 2007.

Ahlfeld, D.P. (2006), Comparison of Climate Model Precipitation Forecasts with North American Observations, in Proceedings of the XVI International Conference on Computational Methods in Water Resources, edited by Philip J. Binning Peter Engesgaard, Helge Dahle, George F. Pinder and William G. Gray. Copenhagen, Denmark, June, 2006.

P.M. Barlow, D.P. Ahlfeld and G.E. Granato, “A Simulation-Optimization Model for Evaluation of Ground-Water Development Options Constrained by Minimum Streamflow Requirements and Water-Supply Demands”, Proc. of MODFLOW and More 2006: Managing Ground Water Systems, May 2006, Golden, Colorado.

D.R. Buttrick, J.E. Tobiason and D.P. Ahlfeld, “Modeling as an Operational Tool for an Unfiltered Surface Water Supply”, Proc. Of Amer. Water Works Assoc. ACE, June 2005, San Francisco, CA.

D.P. Ahlfeld, “Algorithm for Groundwater Management Formulations with Head Dependent Boundary Conditions”, Proc. of XV International Conference on Computational Methods in Water Resources, June, 2004, Chapel Hill, NC., Editors, C.T. Miller, M.W. Farthing, W.G. Gray, G.F. Pinder, pgs 1193-1200.

D.P. Ahlfeld, “Solving Mixed-Binary Optimization Problems for Groundwater Management”, Proc. of the World Water and Environmental Resources Congress, American Society of Civil Engineers, Philadelphia, PA, June 23-26, 2003.

Full Curriculum Vitae

Full Curriculum Vitae