Computation of Tides in the Northeast Asian Sea by Blending the Topex/Poseidon Altimeter Data

Topex/Poseidon 고도계 자료를 이용한 북동 아시아 해역의 조석 산정

  • 김창식 (한국해양연구원 연안 항만 공학연구본부) ;
  • ;
  • ;
  • 이종찬 (한국해양연구원 연안 항만 공학연구본부)
  • Published : 2001.02.28


Tidal computations of $M_2,\;S_2,\; K_1$ and $O_1$ constituents in the northeast Asian sea are presented by blending the Topex/Poseidon (T/P) altimeter data into a hydrodynamic model with $5'{\times}5'$ resolution. A series of sensitivity experiments on a weighting factor, which is the control parameter in the blending method, are carried out using $M_2$ constituent. The weighting factor is set to be in inverse proportion to the square root of water depth to reduce noises which could occur in data-assimilative model by blending T/P data. Model results obtained by blending the T/P-derived $M_2,\;S_2,\; K_1$ and $O_1$ constituents simultaneously are compared with all T/P-track tidal data; Average values of amplitude and phase errors are close to zero. Standard deviations of amplitude and phase errors are approximately 2 cm and less than 10 degrees respectively. The data-assimilative model results show a quite good agreement with T/P-derived tidal data, particularly in shallow water region (h<250m). In deep water regions, T/P-derived tidal data show unreasonable spatial variations in amplitude and phase. The data-assimilative model results differ from T/P-derived data, but are improved to show reasonable spatial variations in amplitude and phase. In addition, the T/P-blended model results are in good agreement with coastal tide gauge data which are not blended into the model.



  1. 해양연구 v.18 자료합성법을 이용한 황해 및 동중국해의 M₂조석 산정 이종찬;정경태
  2. J. Oceanography v.55 Ocean tide models devoloped by assimilating TOPEX/POSEIDON altimetry data into hydroodynamical model: A Global Modal and a Regional Modal around Japan Matsumoto, K.;T. Takanezawa;M. Ooe
  3. The rotation of the Earth Munk, W.H.;D.E.J. MacDonald
  4. Rep. Hydro. Res. v.15 Improved tidal charts for the western part of the north Pacific Ocean Nishida, H.
  5. Phil. Trans. R. Soc. Tidal spectroscopy and prediction Munk, W.H.;D.E. Cartwright
  6. Astron. Soc. Body tides on an elliptical, rotating, elastic oceanless Earth, Geophys Wahr, J.M.
  7. Phil. Trans. R. Soc. v.A Solution of the tidal equations for the M2 and S2 tides in the world oceans from a knowledge of the eidal potential alone Accad, Y.;C.L. Pekeris
  8. J. Geophy. Res. v.100 Ocean tide model obtained from TOPEX/POSEIDON altemetry data Matsumoto, K.;M. Ooe;T. Sato
  9. 한국해양학회지 v.5 동아시아 주변해역에서의 TOPEX/POSEIDON 고도 자료와 현장 해수면 자료의 비교 윤용훈;오임상;김기현;박용향
  10. J. Korean Soc. Coastal and Ocean Engr. v.5 A review of tidal models for the East China and Yellow Seas Choi, B.H.;Fang, G.
  11. J. Geophy. Res. v.100 Intercomparison of recent tide models Andersen, O.B.;P.L. Woodworth;R.A. Flather
  12. 한국해안·해양공학회지 v.6 동아시아 해역의 조석 모형 최병호;고진석
  13. J. Oceanography v.53 Co-tidal and Co-range charts for the Est China Sea and the Yellow Sea derived from satellite altimetric data Yanagi, T.A.;Morimoto;K. Ichikawa
  14. J. Oceanogr. Soc. Japan v.45 Co-Oscillating and independent tides of the Japan Sea Odamaki, M.
  15. Cont. Shelf Res. v.11 Tidal friction in a sea with two equal semidiurnal tidal constituents Bowers, D.G.;T.P. Rippeth;J.H. Simpson
  16. NASA Tech. Memo. Radial deformation of the earth by oceanic tide loading Ray, R.D.;B.V. Sanchez
  17. Oceanography of Asian Marginal Seas. Elsevier Tidal computation of the East China Sea, the Yellow Sea and the East Sea Kang, S.K.;Lee, S.R.;Yum, K.D.;K. Takano(ed.)
  18. Geophys. and Space Phy. v.18 On charting global ocean tides Schwiderski, E.W.
  19. J. Geophy. Res. v.100 Barotropic tipes in the global oceans from a nonlinear tidal assimilating altimetric tides: 1. Model Descroption and Results Kantha, L.H.
  20. J. Atmos. Oceanic Techn. v.14 Development of a data sampling strategy for semienclosed seas using a shallow-water model Blain, C.A.
  21. Shelf Res. v.18 Fine grid tidal modeling of the Yellow and East China Seas Kang, S.K.;Lee, S.R.;Lie, H.J.
  22. Korea Ocean Research and Development Institute Rep. A tidal model of the Yellow Sea and the Eastern China Sea Choi, B.H.
  23. J. Geophy. Res. v.105 How can we improve a global ocean tide model at a regional scale? A test on the Yellow Sea and the East China Sea Lefevre, F.;C.Le Provost;F.H. Lyard
  24. Tidal constituent bank station catalogue IHO
  25. J. Phys. Oceanogr. v.28 Tides in the Sea of Okhotsk Kowailik, Z.;I. Polyakov