Understanding the long‐term effect of nonpoint source (NPS) pollution on groundwater of agricultural regions is an increasing challenge of global importance.
The simulation of non-point source pollution in agricultural basins is a computationally demanding process due to the large number of individual sources and potential pollution receptors (e.g., drinking water wells).
Non-point source (NPS) pollution has degraded groundwater quality of unconsolidated sedimentary basins over many decades. Properly conceptualizing NPS pollution from the well scale to the regional scale leads to complex and expensive numerical models:
Managed aquifer recharge and changes in crop type or nutrient management on agricultural lands are promising approaches to address groundwater quality degradation by nitrate.
Degradation of groundwater quality due to nonpoint source (NPS) contaminants from the land surface, especially nitrate in agricultural aquifers, is a major environmental concern.
Assessing the impact of a land-use change (LUC) or the change in nutrient management practices on nonpoint source-driven groundwater quality requires complex analysis.
At the core of our Nonpoint Source Assessment Tool (NPSAT) is software for the simulation of a high-resolution steady-state flow solution in an unconfined and variably confined aquifer system. We have developed our own, highly efficient numerical algorithm to accurately solve the groun
