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STUDY OF NON-BOUSSINESQ EFFCET ON SEA SURFACE HEIGHT

CHENXian-yao、WANGXuan、WANGXiu-hong、QIAOFang-li

2004Acta Scientiarum Naturalium Universitatis SunyatseniEarth and Planetary Sciences被引 0

摘要

A set of equations was derived for a non-Boussinesq ocean model in this paper.A new time-splitting scheme was introduced which incorporates the 4th-order Runge-Kutta explicit scheme of low-frequency mode and an implicit scheme of high-frequency mode.With this model,potential temperature,salinity fields and sea surface height were calculated simultaneously such that the numerical error of extrapolation of density field from the current time level to the next one could be reduced while using the equation of mass conservation to determine sea surface height.The non-Boussinesq effect on the density field and sea surface height was estimated by numerical experiments in the final part of this paper.

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