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function [budgO,budgI,budgOI]=calc_budget_mass(kBudget); |
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% CALC_BUDGET_MASS(kBudget,doMoreBudgetOutput) |
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% |
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% note: within this routine `ETAN', `SIheff', and `SIhsnow' denote |
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% the corresponding tendencies as computed by diags_diff_snapshots.m |
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% rather than the state variables themselves. |
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|
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gcmfaces_global; |
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|
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%get variables from caller routine: |
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%---------------------------------- |
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|
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global myparms; |
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|
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list_variables={'ETAN','SIheff','SIhsnow','oceFWflx','SIatmFW','oceFWflx',... |
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'UVELMASS','VVELMASS',... |
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'ADVxHEFF','ADVxSNOW','DFxEHEFF','DFxESNOW',... |
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'ADVyHEFF','ADVySNOW','DFyEHEFF','DFyESNOW'}; |
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|
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for vv=1:length(list_variables); |
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v = evalin('caller',list_variables{vv}); |
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eval([list_variables{vv} '=v;']); |
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end; |
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clear v; |
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|
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test3d=length(size(UVELMASS{1}))>2; |
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|
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if test3d|kBudget>1; |
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list_variables={'WVELMASS'}; |
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for vv=1:length(list_variables); |
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v = evalin('caller',list_variables{vv}); |
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eval([list_variables{vv} '=v;']); |
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end; |
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clear v; |
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end; |
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|
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%compute mapped budget: |
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%---------------------- |
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|
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%mass = myparms.rhoconst * sea level |
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budgO.tend=ETAN*myparms.rhoconst; |
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budgI.tend=(SIheff*myparms.rhoi+SIhsnow*myparms.rhosn); |
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%for deep ocean layer : |
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if kBudget>1&myparms.useNLFS<2; |
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budgO.tend=0; |
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elseif kBudget>1;%rstar case |
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tmp1=mk3D(mygrid.DRF,mygrid.hFacC).*mygrid.hFacC; |
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tmp2=sum(tmp1(:,:,kBudget:length(mygrid.RC)),3)./mygrid.Depth; |
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budgO.tend=tmp2.*ETAN*myparms.rhoconst; |
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end; |
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% |
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if test3d; |
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tmp1=mk3D(mygrid.DRF,mygrid.hFacC).*mygrid.hFacC; |
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tmp2=tmp1./mk3D(mygrid.Depth,tmp1); |
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budgO.tend=tmp2.*mk3D(ETAN,tmp2)*myparms.rhoconst; |
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end; |
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% |
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tmptend=mk3D(mygrid.RAC,budgO.tend).*budgO.tend;%kg/s |
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budgO.fluxes.tend=tmptend; |
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budgO.tend=nansum(tmptend,3); |
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budgI.tend=mygrid.RAC.*budgI.tend;%kg/s |
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budgOI.tend=budgO.tend+budgI.tend; |
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|
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%vertical divergence (air-sea fluxes or vertical advection) |
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budgO.zconv=oceFWflx; |
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budgI.zconv=SIatmFW-oceFWflx; |
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%in virtual salt flux we omit : |
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if ~myparms.useRFWF; budgO.zconv=0*budgO.zconv; end; |
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%for deep ocean layer : |
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if kBudget>1; budgO.zconv=-WVELMASS*myparms.rhoconst; end; |
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% |
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if test3d; |
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trWtop=-WVELMASS*myparms.rhoconst; |
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%trWtop(:,:,1)=budgO.zconv; |
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trWbot=trWtop(:,:,2:length(mygrid.RC)); |
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trWbot(:,:,length(mygrid.RC))=0; |
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% |
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budgO.fluxes.trWtop=mk3D(mygrid.RAC,trWtop).*trWtop; |
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budgO.fluxes.trWbot=mk3D(mygrid.RAC,trWbot).*trWbot;%kg/s |
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else; |
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budgO.fluxes.trWtop=-mygrid.RAC.*budgO.zconv; |
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budgO.fluxes.trWbot=mygrid.RAC*0;%kg/s |
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end; |
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budgI.fluxes.trWtop=-mygrid.RAC.*(budgI.zconv+budgO.zconv); |
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budgI.fluxes.trWbot=-mygrid.RAC.*budgO.zconv;%kg/s |
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% |
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budgO.zconv=mk3D(mygrid.RAC,budgO.zconv).*budgO.zconv;%kg/s |
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budgI.zconv=mygrid.RAC.*budgI.zconv;%kg/s |
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budgOI.zconv=budgO.zconv+budgI.zconv; |
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|
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%horizontal divergence (advection and ice diffusion) |
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if test3d; |
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%3D UVELMASS,VVELMASS are multiplied by DRF |
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%(2D diagnostics are expectedly vertically integrated by MITgcm) |
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tmp1=mk3D(mygrid.DRF,UVELMASS); |
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UVELMASS=tmp1.*UVELMASS; |
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VVELMASS=tmp1.*VVELMASS; |
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end; |
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dxg=mk3D(mygrid.DXG,VVELMASS); dyg=mk3D(mygrid.DYG,UVELMASS); |
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tmpUo=myparms.rhoconst*dyg.*UVELMASS; |
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tmpVo=myparms.rhoconst*dxg.*VVELMASS; |
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budgO.hconv=calc_UV_conv(nansum(tmpUo,3),nansum(tmpVo,3)); |
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tmpUi=(myparms.rhoi*DFxEHEFF+myparms.rhosn*DFxESNOW+... |
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myparms.rhoi*ADVxHEFF+myparms.rhosn*ADVxSNOW); |
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tmpVi=(myparms.rhoi*DFyEHEFF+myparms.rhosn*DFyESNOW+... |
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myparms.rhoi*ADVyHEFF+myparms.rhosn*ADVySNOW); |
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budgI.hconv=calc_UV_conv(tmpUi,tmpVi); %dh needed is alerady in DFxEHEFF etc |
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% |
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budgOI.hconv=budgO.hconv; |
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budgOI.hconv(:,:,1)=budgOI.hconv(:,:,1)+budgI.hconv; |
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% |
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budgO.fluxes.trU=tmpUo; budgO.fluxes.trV=tmpVo;%kg/s |
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budgI.fluxes.trU=tmpUi; budgI.fluxes.trV=tmpVi;%kg/s |
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