Vertical structure of the M2 tidal current in the Yellow Sea
- Vertical structure of the M2 tidal current in the Yellow Sea
- Lee, S.; Lie, H.-J.; Cho, C.-H.; Kang, S.K.; Teague, W.J.; Chang, K.-I.; Song, K.-M.; Oh, K.-H.
- KIOST Author(s)
- Lee, Seok(이석); Cho, Cheol Ho(조철호); Song, Kyu Min(송규민); Oh, Kyung Hee(오경희)
- The vertical structure of the M2 tidal current in the Yellow Sea is analyzed from data acquired using an acoustic Doppler current profiler. The observed vertical profiles of the M2 tidal current are decomposed into two rotating components of counter-clockwise and clockwise, and restructured using a simple one-point model with a constant vertical eddy viscosity. The analyzed results show that the internal fictional effect dominates the vertical structure of the tidal current in the bottom boundary layer. In the Yellow Sea, the effect of the bottom friction reduces the current speed by about 20-40% and induces the bottom phase advance by about 15-50 minutes. In the shallower coastal regions, the effects of bottom topography are more prominent on the vertical structure of tidal currents. The vertical profile of the tidal current in summer, when the water column is strongly stratified, is disturbed near the pycnocline layer. The stratification significantly influences the vertical shear and distinct seasonal variation of the tidal current. © 2011 Korea Ocean Research & Development Institute (KORDI) and the Korean Society of Oceanography (KSO) and Springer Netherlands.
- Ocean Science Journal, v.46, no.2, pp.73 - 84, 2011
- Acoustic Doppler Current Profiler; benthic boundary layer; bottom friction; bottom topography; coastal zone; eddy; pycnocline; stratification; tidal current; vertical profile; viscosity; water column; Pacific Ocean; Yellow Sea
- bottom boundary layer; bottom friction; certical eddy viscosity; tidal current; Yellow Sea
- Related Researcher
Ocean circulation,Dynamics of ocean surface currents by HF Radar and drifters,Real-time ocean monitoring,해양순환,고주파레이다와 표류부이를 활용한 표층해류관측 및 연구,실시간 해양 모니터링
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