Development of the ocean forecast system in the Japan Sea (JADE), 4; Assimilation of tide data

Takayama, Katsumi*; Hirose, Naoki*; Kawamura, Hideyuki  ; Shimizu, Daisuke*; Watanabe, Tatsuro*

An ocean general circulation model in the Japan Sea has been being developed to reproduce and forecast movement of pollutants at JAEA. It was demonstrated that an assimilation of sea level variation at tide stations along the Japanese coast is effective to reproduce oceanic condition in the nearshore region. In this study, an effect of assimilation of satellite altimeter data, CTD data and tide data is quantitatively surveyed. As a result, it was demonstrated that this assimilation scheme improves the oceanic condition.