STUDY OF NON-BOUSSINESQ EFFCET ON SEA SURFACE HEIGHT  

作　　者：CHENXian-yao WANGXuan WANGXiu-hong QIAOFang-li 

机构地区：[1]KeyLaboratoryofMarineScienceandNumericalModeling,TheFirstInstituteofOceanography,StateOceanicAdministration,Qingdao266061,China [2]InstituteofOceanology,ChineseAcademyofSciences,Qingdao266071,China

出　　处：《Journal of Hydrodynamics》2004年第5期518-524,共7页水动力学研究与进展B辑（英文版）

基　　金：NationalKeyBasicResearchProgram (GrantNo :G19990 4 380 9) ,NationalHighTechnologyProject(GrantNo:2 0 0 2AA6 394 10 )andNationalNaturalScienceFoundationofChina (GrantNos:4 0 4 0 6 0 0 7and 4 0 2 310 12 )

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

关 键 词：non-boussinesq effect time-splitting scheme sea surface height ocean model 

分 类 号：P731.3[天文地球—海洋科学]