Image-Well Solution for Island Aquifers with Pumping, Recharge, and Complex Coastlines
Ying-Fan Lin, Barret L. Kurylyk, Adrian D. Werner, Chih-Yu Liu, Cristina Solorzano-Rivas, Jun-Hong Lin · Advances in Water Resources · 2025
DOI 10.1016/j.advwatres.2025.104977Can analytical speed be retained when an island has wells, recharge, and a complex coastline?
The study asks how freshwater-lens head and interface depth can be evaluated without reducing every island to a simple symmetric boundary.
A freshwater lens under multiple environmental and pumping stresses
An unconfined island aquifer with a freshwater-saltwater interface, spatial recharge, pumping or injection wells, and a coastline represented through image-well constructions.
Analytical superposition coupled to image wells
A new analytical freshwater-lens solution is combined with image wells so repeated pumping and recharge scenarios can account for coastline geometry without a full numerical model for each trial.
Head and interface depth become fast constraints for scenario testing
Convergence tests and comparisons with an established solution support the formulation, and an island example based loosely on Kinmen demonstrates multi-well pumping optimization subject to an interface-depth limit.
Animated research summary in preparation
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