Author(s)

M. Koch & G. Zhang

Abstract

The phenomenon of density-driven vertical salt water intrusion from brackish open sea-canals in southeast Florida has been simulated with a density-coupled groundwater flow and transport model. The underlying conceptual model includes seasonal changes of the groundwater level, tidal variations of the canal stage, rainfall recharge, and a low permeability canal bed. As expected, whether brackish canal water intrudes into the aquifer, depends on the adjacent groundwater table elevation: lowering the latter during a dry season may initiate the seepage process which then becomes essentially irreversible. A signif

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