Measurements of Near-Survface Current in Inlets and Bays with Synthetic Aperture Radar

by O. H. Shemdin, JPL, Pasadena, CA, USA,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


Synthetic Aperture Radar, SAR, provides images of land and ocean surfaces irrespective of solar illumination, and practically under all weather conditions. Developed originally for land applications, SAR oceanographic applications are being explored with interest. This paper presents results on recent developments on SAR as they relate to tidal hydraulics and near-shore processes. Applications of SAR to measuring surface current in Grays Harbor, Washington and San Francisco Bay, California are discussed. The merit of SAR resides in the instantaneous measurement of the current field over a large area. Repeated flights over the same site would provide current maps at different phases of a tidal cycle.

Subject Headings: Radar | Ocean currents | Bays | Inlets (waterway) | Tides | Hydraulics | Oceanography | Nearshore | United States | Washington | California

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