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gforget |
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function []=example_MITprof(); |
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% EXAMPLE_MITPROF illustrates the use of MITprof datasets by computing |
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% Argo stats over a regional domain that includes the ACC core |
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gcmfaces_global; |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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if myenv.verbose>0; |
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gcmfaces_msg('==============================================='); |
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gcmfaces_msg(['*** entering example_MITprof: illustrate ' ... |
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'the use of MITprof datasets by computing Argo ACC stats'],''); |
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end; |
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%%%%%%%%%%%%%%%%% |
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%load grid and setup test case: |
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%%%%%%%%%%%%%%%%% |
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if isempty(mygrid); |
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grid_load; |
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end; |
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myenv.nctilesdir=fullfile('release2_climatology',filesep,'nctiles_climatology',filesep); |
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myenv.mitprofdir=fullfile('release2_climatology',filesep,'profiles',filesep); |
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if ~isdir(myenv.nctilesdir); |
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diags=[]; |
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help gcmfaces_demo; |
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warning(['skipping example_MITprof (missing ' myenv.nctilesdir ')']); |
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return; |
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end; |
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if ~isdir(myenv.mitprofdir); |
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diags=[]; |
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help gcmfaces_demo; |
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warning(['skipping example_MITprof (missing ' myenv.mitprofdir ')']); |
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return; |
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end; |
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%%%%%%%%%%%%%%%%%%%%%%% |
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%define regional mask |
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if myenv.verbose>0; |
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gcmfaces_msg('* call calc_barostream and define regional mask accordingly'); |
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end; |
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%compute mean streamfunction to define mask: |
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fldU=mygrid.mskW.*mean(read_nctiles([myenv.nctilesdir 'UVELMASS/UVELMASS']),4); |
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fldV=mygrid.mskS.*mean(read_nctiles([myenv.nctilesdir 'VVELMASS/VVELMASS']),4); |
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[fldBAR]=calc_barostream(fldU,fldV); |
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%define 2D mask: |
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msk2D=fldBAR; |
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msk2D(fldBAR>100)=0; msk2D(fldBAR<30)=0; msk2D(mygrid.YC>0)=0; |
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msk2D(msk2D>0)=1; msk2D=msk2D.*mygrid.mskC(:,:,1); |
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%max climatological MLD could aternatively be used to define mask: |
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% maxMLD=mygrid.mskC(:,:,1).*max(read_nctiles('release2_climatology/nctiles_climatology/MXLDEPTH/MXLDEPTH'),[],3); |
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%define 3D mask: |
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msk3D=repmat(msk2D,[1 1 50]).*mygrid.mskC; |
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msk3D(:,:,26:50)=0.*msk3D(:,:,26:50); |
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%%%%%%%%%%%%%%%%%%%%%%% |
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%read in MITprof data sets and matching climatology profiles |
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if myenv.verbose>0; |
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gcmfaces_msg('* read-in and select Argo profiles'); |
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end; |
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listData={'MITprof_mar2016_argo9506*','MITprof_mar2016_argo0708*','MITprof_mar2016_argo0910*',... |
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'MITprof_mar2016_argo1112*','MITprof_mar2016_argo1314*','MITprof_mar2016_argo1515*'}; |
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listVar={'prof_T'}; listV={'T'}; |
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for vv=1:length(listVar); |
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tmpprof=MITprof_stats_load(myenv.mitprofdir,listData,listV{vv},listVar{vv}); |
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% |
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loc_tile=gcmfaces_loc_tile(90,90,tmpprof.prof_lon,tmpprof.prof_lat); |
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tmpprof.prof_msk=convert2array(msk2D); |
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tmpprof.prof_msk=tmpprof.prof_msk(loc_tile.point); |
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tmpprof=MITprof_subset(tmpprof,'msk',1); |
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% |
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if vv==1; myprof=tmpprof; end; |
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myprof.(listVar{vv})=tmpprof.prof; |
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% |
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clear tmpprof; |
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end; |
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myprof=rmfield(myprof,{'prof','prof_msk'}); |
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if myenv.verbose>0; |
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gcmfaces_msg('* subsample monthly climatology to profile locations'); |
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end; |
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fldIn.fil=fullfile(myenv.nctilesdir,filesep,'THETA'); |
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fldIn.tim='monclim'; fldIn.name='prof_Tclim'; |
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myprof=MITprof_resample(myprof,fldIn); |
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%%%%%%%%%%%%%%%%%%%%%%% |
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%compute monthly averages |
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if myenv.verbose>0; |
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gcmfaces_msg('* call MITprof_wrapper to compute monthly climatology'); |
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end; |
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%specify operation to compute via MITprof_wrapper |
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myop=[]; |
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%myop.op_name='mean'; |
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myop.op_name='cycle'; myop.op_tim=[0:7:365]; |
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myop.op_vars={'prof_T','prof_Tclim'}; |
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%compute cycle via MITprof_wrapper |
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[cy_T,cy_Tclim]=MITprof_wrapper(myprof,myop); |
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if myenv.verbose>0; |
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gcmfaces_msg('* call MITprof_wrapper via bootstrp to compute std'); |
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end; |
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%store myprof and myop into global variable |
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global myprofmyop; myprofmyop=myprof; |
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for ii=fieldnames(myop)'; myprofmyop.(ii{1})=myop.(ii{1}); end; |
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gforget |
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%store mask since it could be useful for plotting or other purposes |
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myprofmyop.msk2D=msk2D; |
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myprofmyop.msk3D=msk3D; |
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gforget |
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%compute boostrap samples using MITprof_wrapper |
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K=[1:myprofmyop.np]; N=100; |
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myout = bootstrp(N, @MITprof_wrapper,K); |
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%compute standard deviation |
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bo_cy_T=reshape(cell2mat(myout(:,1)'),[size(cy_T) N]); |
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bo_cy_Tclim=reshape(cell2mat(myout(:,2)'),[size(cy_T) N]); |
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std_cy_T=std(bo_cy_T,[],3); |
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std_cy_Tclim=std(bo_cy_Tclim,[],3); |
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%%%%%%%%%%%%%%%%%%%%%%% |
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%display results |
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figure; |
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subplot(2,2,1); imagescnan(cy_T'); colorbar; title('mean using Argo'); |
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subplot(2,2,2); imagescnan(cy_Tclim'); colorbar; title('mean using climatology'); |
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subplot(2,2,3); imagescnan(std_cy_T'); colorbar; title('std using Argo'); |
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subplot(2,2,4); imagescnan(std_cy_Tclim'); colorbar; title('std using climatology'); |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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if myenv.verbose>0; |
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gcmfaces_msg('*** leaving example_MITprof'); |
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gcmfaces_msg('==============================================='); |
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end; |
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