Author(s): T. Uda; H. Hashimoto
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Keywords: No Keywords
Abstract: Field investigation by using a remote sensing technique is conducted along the coast from Ajigaura Beach to the Hitachi Harbor in Ibaraki Prefecture. The measurements by a Multi Spectral Scanner (MSS) and color photographs from an airplane are carried out in order to study the mechanism of occurrence of nearshore circulation in a pocket beach. Some distributions of surface water temperature of the sea, nearshore current and wave direction along the breaker line are analyzed. The measurement of wave direction using an alidade is also conducted from the top of a dune at Ajigaura Beach. Waveheights are measured at the head of the Ajigaura Pier. Consequently it is con-cluded that the nearshore circulation can be induced in a pocket beach, and its mechanism is explained by the theory presented by O'Rourke and Le Blond.
Year: 1985