冬季但馬沖の陸棚上で観測された流れの特性

概要

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Current measurements were carried out at three stations on the continental shelf off the Tajima coast, in the Japan Sea, during about 17 days in the winter of 1981, to study the structure and variability of the coastal current. Because of relatively little stratification, the barotropic flow was predominant rather than the baroclinic flow. The mean current during the observational period is eastward, and this current is considered as the first branch of the Tsushima Current. The velocity near the current axis of the first branch reached to about 0.5kt. The measurements showed that the current variations were highly coherent with the variations of wind and coastal sea level. Alongshore currents were in phase with the coastal sea level, and lagged behind the alongshore wind by about 15 hours. Therefore, the current and sea level variations can be con-sidered to be mainly forced by wind.
日本水産學會の論文