Tidal Currents in the Tsushima Straits Observed by HF Radars

Tidal currents in the Tsushima Straits observed by HF Radars are described in two different points of view．First，spatial pattern of the currents of fundamental tidal constituents in the Tsushima Straits are shown. The results agree well with past observations．Then seasonal variability of the radial amplitudes of M_2currents is explained．The radial amplitudes of M_2 currents in the Tsushima Straits observed by the radars increase in winter and decrease in summer. This phase property qualitatively agrees well with that of the seasonal variability of the M_2 amplitude of sea level observed around the Tsushima Straits