ABSTRACT
In this chapter, we shall discuss the flow of groundwater in the vicinity of coastlines. For this purpose, we shall assume that the interface between the saltwater and the freshwater is sharp without molecular diffusion or mechanical dispersion. Figure 8.1 illustrates schematically the various possibilities of the groundwater flow toward the actual coastline with and without a sharp interface. To simplify the analysis, we shall make throughout this chapter the following assumptions: (1) the interface between the freshwater and saltwater is sharp; (2) the saltwater is in a stagnant state; and (3) the freshwater migrates toward the coastline, and this migration may be analyzed by using the Dupuit-Forchheimer assumptions.
