Japan Geoscience Union Meeting 2018

Presentation information

[EJ] Poster

A (Atmospheric and Hydrospheric Sciences) » A-OS Ocean Sciences & Ocean Environment

[A-OS14] Freshwater discharge from rivers and estuaries to the ocean

Tue. May 22, 2018 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

convener:Shinichiro Kida(Research Institute for Applied Mechanics, Kyushu University), Dai Yamazaki(Institute of Industrial Sciences, The University of Tokyo), Humio Mitsudera(北海道大学低温科学研究所, 共同), Yosuke Alexandre Yamashiki(Earth & Planetary Water Resources Assessment Laboratory Graduate School of Advanced Integrated Studies in Human Survivability Kyoto University)

[AOS14-P06] Dispersal process of water particles along Sanriku ria coast in Japan

*Shota Katsura1, Yoshimasa Matsumura1, Takashi Sakamoto1, Hiroyasu Hasumi1, Kiyoshi Tanaka1 (1.Atmosphere and Ocean Research Institute, the University of Tokyo)

Along Sanriku ria coast in northeast of Japan, a number of small bays distribute, which have several or a few tens kilometers. Sanriku coastal region is an important area for Japanese fisheries, and many kinds of seaweeds and shellfishes are caught and farmed. Bays along Sanriku coastal region face to the Northwest Pacific and exchange their water for open ocean water advected by Tsugaru warm current, Oyashio, Kuroshio, and eddies. Understanding the water exchange between the bays and the open ocean and among the bays in Sanriku coastal region is important not only for fisheries but also understanding of material circulation. In the present study, dispersal processes of water particles in the bays along Sanriku coastal region is investigated by particle tracking using an ocean model. In the presentation, results for the bays in the middle of Sanriku ria coast, such as in Otsuchi bay, is mainly introduced.