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ANALYTICAL ELEMENT MODELING OF COASTAL AQUIFERS
Citation:
Bakker, M., W. J. de Lange, S R. Kraemer*, AND O. L. Strack. ANALYTICAL ELEMENT MODELING OF COASTAL AQUIFERS. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-99/110 (NTIS PB2000-101970), 2000.
Impact/Purpose:
information
Description:
Four topics were studied concerning the modeling of groundwater flow in coastal aquifers with analytic elements: (1) practical experience was obtained by constructing a groundwater model of the shallow aquifers below the Delmarva Peninsula USA using the commercial program MVAEM; (2) a significant increase in performance was obtained by implementing the theory for variable density flow in a computer program that ran on a supercomputer using vectorization; (3) a new representation for the density variation was developed that can simulate the change from brackish to fresh water more accurately; and (4) it was shown that for a specific example of a bell-shaped transition zone a Dupuit model gives accurate results unless the bell-shape is too narrow compared to the thickness of the aquifer.