有明海の海水交換の時間スケールに関する数値実験的検討

Numerical study on time scale of water exchange in the Ariake Sea

Creators Asai Koji

Creators Sato Hideki

The Ariake Sea Japan is surrounded by Fukuoka, Kumamoto, Saga and Nagasaki prefecture, and has a huge tidal flat area with a very high productivity. Nowadays, the water environments in the Ariake Sea have been worsened by various factors such as the reclamation of the large tidal flat, a decrease in the tidal height of the outer sea, an increase of the mean water depth and so on. It is suspected that the embankment in the Isahaya bay is one of the main factors. The effect of the existence of the embankment in the Isahaya bay on the seawater exchange in the Ariake Sea is investigated numerically in this paper. The negative influence of the embankment in the Isahaya Bay on the water exchange can be recognized under the numerical conditions used here. However, its influence is not so much large quantitatively.

[isVersionOf] [URI]http://memoirs.lib-e.yamaguchi-u.ac.jp/