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Figure 1: Schematic representation of the possible effects of the Sumatra Tsunami on coastal groundwater systems: upconing of brackish groundwater under abstraction wells, intrusion of brackish or saline water from ponds, fingering of brackish water from pools, reduction in freshwater volume due to shoreline retreat, etc.
Salt water intrusion in a coastal aquifer in Sri Lanka
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Figure 2: Conceptual models are used to analyse the impact of the Tsunami on groundwater resources: e.g. Concept freshwater lens in a coastal aquifer with a brackish lagoon.
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