거금수로 주변 해역의 해수유동

Tidal currents studied by numerical model experiments in Kugum suro channel

Kugum Suro channel is located at south-western coast in Korea. The width of the channel is about 3 Km and the average depth is about 15m. In the channel Pungnam-ri and Gahwa-ri are situated on Gohung distric to north-east of the channel, in which the laver and sellfish farming have been developed. It has been well known that the flows in Kugum Suro channel are basically dominated by tidal currents. That is, in flood current the water flows north and then west, but in ebb current it flows east and then south. Studying the characteristics of flow patterns on the various tidal conditions in Kugum Suro channel, numerical experiments were carried out. This paper discribes the tidal currents by using the numerical model of two-dimmensional depth intergrated type. The results of numerical experiments show that the flow patterns of spring and neap tides are nearly similar. But current speed in neap tide is two-thirds of that in spring tide. On the coastal waters from Pungnam-ri to Gahwa-ri the current directions are almost parallel to the coast. The current speeds around Pungnam-ri coastal areas are small. But the current speeds in the other coastal areas between Pungnam-ri and Gahwa-ri are large to some extent.