Toward Bay/Harbor Circulation Model Improvement Incorporating Hf Radar Data Based On Seasonde Deployments On San Francisco Bay

Two High-Resolution SeaSonde HF radars were deployed on San Francisco Bay during Summer 1999. Normal total vector map coverage was produced in the common overlap area East of Tiburon, North of Golden Gate. We focus here on the important Golden-Gate region with the highest flows, which was seen only by the radar on Treasure Island. This is a case where perhaps single-site radial coverage is adequate. The radar surface currents in this region are compared with the U.S.G.S. TRIM2D vertically integrated circulation model outputs for the bay. The tidal harmonic amplitudes compare favorably except at one location directly beneath Golden Gate Bridge where flow through the mouth is the most constricted.