Spatial Dynamic Optimization of Groundwater Use with Ecological Standards for Instream Flow

摘要: We examine how variations in the spatial distribution and timing of groundwater management actions, as well physical characteristics a stream aquifer system, affect regulators’ ability to meet instream goals stream-aquifer system. propose an optimization model that distributes restrictions on pumping among set irrigators way minimizes costs, subject meeting flow requirements. Our is distinguished by two features: (1) requirements must be met daily (2) we incorporate hydrologic interaction allows time lags depletion impact vary across space. results show there tradeoff between magnitude duration stream-depletion effect: more distant wells have smaller, but longer-lived, streamflow. find exist important cases where drought years located closer should allocated water than farther from stream, despite having smaller overall effect depletion. importance considering lag at which occurs related occurs.