%0 Journal Article
%T adiabaticdensitysurface,neutraldensitysurface,potentialdensitysurface,andmixingpath*
%A huang
%A rui-xin
%J 热带海洋学报
%D 2014
%X ?inthispaper,adiabaticdensitysurface,neutraldensitysurfaceandpotentialdensitysurfacearecompared.theadiabaticdensitysurfaceisdefinedasthesurfaceonwhichawaterparcelcanmoveadiabatically,withoutchangingitspotentialtemperatureandsalinity.forawaterparceltakenatagivenstationandpressurelevel,thecorrespondingadiabaticdensitysurfacecanbedeterminedthroughsimplecalculations.thisfamilyofsurfaceisneutrallybuoyantintheworldocean,anddifferentfromothersurfacesthatarenottrulyneutrallybuoyant.inordertoexploremixingpathintheocean,amixingratiomisintroduced,whichisdefinedastheportionofpotentialtemperatureandsalinityofawaterparcelthathasexchangedwiththeenvironmentduringasegmentofmigrationintheocean.twoextremesituationsofmixingpathintheoceanarem=0(nomixing),whichisrepresentedbytheadiabaticdensitycurve,andm=1,wheretheoriginalinformationiscompletelylostthroughmixing.thelatterisrepresentedbytheneutraldensitycurve.therealityliesinbetween,namely,0