Monitoring Saltwater Intrusion with Robowell at Provincetown Mass.

Monitoring Saltwater Intrusion with Robowell at Provincetown Massachusetts: Freshwater-Saltwater Interface

Graph showing ground-water flow patterns and the zone of dispersion in an idealized, homogeneous coastal aquifer

Ground-water flow patterns and the zone of dispersion in an idealized, homogeneous coastal aquifer. Freshwater and saltwater mix in the zone of dispersion by the processes of diffusion and mechanical dispersion. A circulation of saltwater from the sea to the zone of dispersion and then back to the sea is induced by mixing within this zone. (Barlow 2000A, Figure modified from Cooper, H. H., 1964, A hypothesis concerning the dynamic balance of fresh water and salt water in a coastal aquifer: U.S. Geological Survey Water-Supply Paper 1613-C, p. 1-12).

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