The University of Massachusetts Amherst
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Ai C, Tsai Y.  2016.  Automated sidewalk assessment method for americans with disabilities act compliance using three-dimensional mobile lidar. Journal of Transportation Research Record. 2542:25-32.
Ai C, Tsai Y.  2016.  An automated sign retroreflectivity condition evaluation methodology using mobile lidar and computer vision. Transportation Research Part C: Emerging Technologies. 63:96-113.
Ai C, Tsai Y.  2015.  Geometry preserving active polygon-incorporated sign detection algorithm. Journal of Computing in Civil Engineering. 29(6):04014092.
Ahn K-H, Palmer RN.  2016.  Use of a nonstationary copula to predict future bivariate low flow frequency in the Connecticut River Basin. Hydrological Processes. 30(19):3518–3532.
Ahn K-H, Merwade V, Ojha C.S.P., Palmer RN.  2016.  Quantifying relative uncertainties in the detection and attribution of human-induced climate change on winter streamflow. Journal of Hydrology. 542:304-316.
Ahn K-H, Palmer RN.  2016.  Trend and variability in observed hydrological extremes in the United States. Journal of Hydrologic Engineering. 21(2)
Ahlfeld D. P., Mulvey J.M, Pinder G.F, Wood P.F.  1988.  Contaminated groundwater remediation design using simulation, optimization, and sensitivity theory: 1. Model development. Water Resources Research. 24(3):431–441.
Ahlfeld D. P., Mulligan AE.  2000.  Optimal Management of Flow in Groundwater Systems. :185.
Ahlfeld D. P., Sprong M.P.  1998.  Presence of nonconvexity in groundwater concentration response functions. Journal of Water Resources Planning and Management. 124(1):8-14.
Ahlfeld D. P., Minihane M.  2004.  Storm flow from first-flush precipitation in stormwater design. Journal of Irrigation and Drainage Engineering. 130(4):269-276.
Ahlfeld D. P., Page R.H, Pinder G.F.  1995.  Optimal ground-water remediation methods applied to a superfund site: from formulation to implementation. Groundwater. 33(1):58–70.
Ahlfeld D. P., Baro-Montes G.  2008.  Solving unconfined groundwater flow management problems with successive linear programming. Journal of Water Resources Planning and Management. 134(5):404-412.
Ahlfeld D. P..  1990.   Two‐stage ground‐water remediation design. Journal of Water Resources Planning and Management. 116(4):517-529.
Ahlfeld D. P..  1998.  Interpretation of the dual program for optimal groundwater hydraulic control. Journal of the American Water Resources Association. 34(1):195–206.
Ahlfeld D. P., Heidara M.  1994.  Applications of optimal hydraulic control to ground‐water systems. Journal of Water Resources Planning and Management. 120(3):350-365.
Ahlfeld D. P..  2004.  Nonlinear response of streamflow to groundwater pumping for a hydrologic streamflow model. Advances in Water Resources. 27(4):349–360.
Ahlfeld D. P., Mulvey J.M, Pinder G.F.  1986.  Designing optimal strategies for contaminated groundwater remediation. Advances in Water Resources. 9(2):77-84.
Ahlfeld D. P., Hoque Y.  2008.  Impact of simulation model solver performance on ground water management problems. Groundwater. 46(5):716-726.
Ahlfeld D. P., Sawyer C.S.  1991.  Well location in capture zone design using simulation and optimization techniques. Groundwater. 28(4):507–512.
Ahlfeld D. P., Dripps WR.  2013.  Groundwater Issues. Water: Science, Policy, and Management: Challenges and Opportunities.
Ahlfeld D. P., Zafirakou A., Riefler R.G.  1998.  Solution of the groundwater transport management problem by sequential relaxation. Advances in Water Resources. 21(7):591-604.
Ahlfeld D. P., Barlow PM, Mulligan AE.  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. :1-124.
Ahlfeld D. P., Mulvey J.M, Dembo R.S, Zenios S.A.  1987.  Nonlinear programming on generalized networks. ACM Transactions on Mathematical Software. 13(4):350-367.
Ahlfeld D. P., Joaquín A, Tobiason JE, Mas DML.  2003.  Case Study: Impact of Reservoir Stratification on Interflow Travel Time. Journal of Hydraulic Engineering. 129(12):966-975.
Ahlfeld D. P., Hill E.H.  1996.  The sensitivity of remedial strategies to design criteria. Groundwater. 34(2):341-348.
Ahlfeld D. P., Laverty MM.  2011.  Analytical solutions for minimization of energy use for groundwater pumping. Water Resources Research. 47(6):1-9.
Ahlfeld D. P., Islam M.S.  1994.  Estimating the probability of exceeding groundwater quality standards. Journal of the American Water Resources Association. 30(4):623–629.
Ahlfeld D. P., Mulvey J.M, Pinder G.F.  1987.  Combining physical containment with optimal withdrawal for contaminated groundwater remediation. Advances in Water Resources. 10(4):200-204.
Ahlfeld D. P., Pinder G.F.  1992.  A fast and accurate method for solving subsurface contaminant transport problems with a single uncertain parameter. Advances in Water Resources. 15(2):143-150.
Ahlfeld D. P..  2011.  Quantitative Analysis of Groundwater Systems. Groundwater Quantity and Quality Management. :137-158.