Observation of Ocean Currents in the Sea off Fukushima with Two HF Ocean Radars

Abstract

The horizontal two-dimensional ocean currents in the sea surface were observed using two HF radar in the sea off Fukushima fromMarch to April in 1993. In the far field over 4km off the coasts, the velocities derived by the HF radars were in good agreement with the field data by a velocimeter. The current variability was investigated horizontally by the current vectors, the divergence, and the rotation estimated by the HF radar.