남해 평산포 주변해역의 조석 및 조류 특성

Tide and tidal currents around Pyongsan-po of Namhae Island in the south sea, Korea

평산포 내 조석은 여수항과 같이 반일주조가 우세한 조석으로 그 형태수는 0.215였다. 대조차, 평균조차 및 소조차는 각각 275.8cm, 186.4cm, 97.1cm로, 주변 여수항과 항촌에서 대조차가 거의 유사하였다. 평산포 내 약최고고조위와 대조평균고조위는 각각 335.1cm, 305.5cm였다. 평산포의 평균 해면은 167.6cm로 여수항 평균해면 보다 낮고 항촌보다 높았으나 그 범위는 1.7~3.0cm로 큰 차이가 없었다.

In order to estimate the tide and tidal currents around Pyonsan-po which located in southwest Namhae island in the south sea of Korea, tide and tidal mooring currents observations and cruise surveys by Acoustic Doppler Current Profiler were carried out. Semi-diurnal tides are dominant and their factors are 0.215 in Pyongsan-po. The mean sea level in Pyongsan-po during the observational period is similar to near Yeosu port and Hangchon around Namhae island and its value is 167.6cm. Currents flow east at flood tide and flow west at ebb tide in Pyongsan-po. The ebb flows stronger than the flood and the tidal residual currents flow WNW 2~5cm/s speed. Currents by ADCP in the Yeosu Haeman Channel around Pyongsan-po flow NNW~NNE 28~67cm/s speed at flood tide and SSE~SSW 24~65cm/s speed at ebb tide. The floods flow ENE from 1.5h after low water to 0.5h before high water on the basis of tides at Yeosu port and reach the maximum speed of 17cm/s at 2.0h before high water. The ebbs flow WNW from 1.0h before high water to 1.5h after low water and reach the maximum speed of 20cm/s at 2.5h before low water.