한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)
- 제19권3호
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- Pages.274-280
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- 1986
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- 0374-8111(pISSN)
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- 2287-8815(eISSN)
마산만의 해수유동에 관하여
Variability of Current Velocities in Masan Inlet
- KIM Jong-Hwa (National Fisheries University of Pusan) ;
- CHANG Sun-duck (National Fisheries University of Pusan) ;
- KIM Sam-Kon (National Fisheries University of Pusan)
- 발행 : 1986.05.01
초록
대, 소조기에 마산만에서 연속관측한 자료를 사용하여 만구 단면의 유속 변동특성을 구명하기 위하여 net velocity와 RMS속도의 등양선 및 순 유출입량을 계산하여 검토하였다. 최강유속은 수도 중앙과 서부의 4m 이하의 표층에서 나타나고, 최대 유입속도 24cm/sec 최대 유출속도는 15 cm/sec이다. 최강유속 시간임에도 불구하고 4m 이심에서는 유속이 약하여
Velocity variability of Masan Inlet in the northernpart of Chinhae Bay is studied on the basis of the cross-sectional net velocity distributions and its root-mean-square. They were calculated during three consecutive cycles at spring tide as well as two cycles at near tide with precipitations in June and July 1985. During the spring tide, net ebb flow take place in the western channel while net flood flow in the eastern channel of the cross-section. On the contrary, the direction of both net flows during the neap tide with precipitations is reversed. R.M.S. isotachs show that the highest velocity is 15 cm/sec at spring tide and 10.3 cm/sec at neap tide, and the greatest velocity is persistently found at the surface layer of the western channel of the cross-section at each tidal cycle. It is shown that the major part of constituents of the constant flow in the Inlet is the tidal residual current. The density-driven current, however, plays an important role afer the heavy precipitations.
키워드