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FIELD MEASUREMENTS OF DUNE EROSION

A series of field experiments was made to evaluate the use of a laboratory derived relationship between the force in the wave uprush and the erosion of beach dunes. Measurements of the swash velocity and height at the dune face were used to compute a specific force parameter. This force term was correlated with the specific erosion of the dune. A linear relationship similar to that found in the laboratory was determined with a R squared value of .87.