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Tidal and wind-driven parts of surface currents as measured by radar


H.-H. ESSEN, K.-W. GURGEL, F. SCHIRMER
Deutsche Hydrographische Zeitschrift 36, pp. 81...96, 1983.
Abstract - - In December 1982, surface current measurements by means of an HF radar station were carried out from the Federal German island of Sylt in the North Sea. Two carrier frequencies (25.25 MHz and 29.85 MHz) were tested with respect to their applicability. Hourly sampled 70-hours time series of (1-dimensonal) radial currents at different distances and directions from the radar are analyzed with the objective of determining the tidal and wind-driven parts. Assuming a homogeneous current field, semidiurnal tidal ellipses are synthesized and compared with currents, as documented in the "Atlas der Gezeitenströme in der Deutschen Bucht" (Deutsches Hydrographisches Institut[1983]).
klaus-werner.gurgel@uni-hamburg.de
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