His research interests include: Modeling groundwater dynamics with impulse response functions Approximate response functions are being developed for the efficient and accurate simulation of groundwater dynamics. Parameters in the approximate function are computed by matching temporal moments obtained from groundwater models calibrated with results from time series analysis. Analytic element modeling of multi-aquifer flow. Seawater Intrusion Modeling. Analytic element modeling of unsaturated flow. Groundwater whirls. Transient groundwater flow in aquifers with periodic boundary conditions