Figure 12
From: Groundwater Throughflow and Seawater Intrusion in High Quality Coastal Aquifers
Schematic indicating the possible locations of the seawater interface based on measured solute concentrations from the SIM wells in 1990 (red line) and 2018 (blue line). Panel A shows an example of primarily vertical movement due to a zone of reduced permeability near to the toe. Panel B shows an example of horizontal movement of seawater, such as along a high-permeability conduit located near to the base of the aquifer. Panel C shows an example of both horizontal and vertical movement inland, as would be found in a homogeneous aquifer.
