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%clear all |
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|
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new = 'input.shelfice'; |
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input = 'input'; |
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eostype = 'mdjwf'; |
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|
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nx = 45; |
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ny = nx*18; |
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nz = 23; |
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nt = 12; |
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|
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load MASKS |
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hf = msk; |
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load FMT |
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load HN |
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load ZN |
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% $$$ hn = mit_readfield(fullfile(input,'bathy_llc_p90.bin'),[nx ny],fmt); |
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% $$$ hnz = mit_readfield(fullfile(input,'shelfice_bath.bin'),[nx ny],fmt); |
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% $$$ zn = mit_readfield(fullfile(input,'shelfice_topo.bin'),[nx ny],fmt); |
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|
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h = hn+hnz; |
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mit_writefield(fullfile(new,'bathy_llc_p90.bin'),mdsiocompact(hn),fmt); |
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mit_writefield(fullfile(new,'bathy_llc_p90.shice'),mdsiocompact(h),fmt); |
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mit_writefield(fullfile(new,'shelfice_topo.bin'),mdsiocompact(zn),fmt); |
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|
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% create hydrographic fields |
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levt = mit_readfield(fullfile(input,'lev_t.bin'),[nx ny nz nt],fmt); |
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levs = mit_readfield(fullfile(input,'lev_s.bin'),[nx ny nz nt],fmt); |
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is = find(zn~=0); |
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[ix,iy] = find(zn~=0); |
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[t,s] = shelfice_hydrography(ix,iy,is,levt,levs); |
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mit_writefield(fullfile(new,'lev_t.shice'),mdsiocompact(t),fmt); |
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mit_writefield(fullfile(new,'lev_s.shice'),mdsiocompact(s),fmt); |
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|
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% create hydrographic fields |
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levt = mdsiocompact(mit_readfield(fullfile(input,'lev_t.init'),[nx ny nz],fmt),0); |
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levs = mdsiocompact(mit_readfield(fullfile(input,'lev_s.init'),[nx ny nz],fmt),0); |
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is = find(zn~=0); |
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[ix,iy] = find(zn~=0); |
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[t,s] = shelfice_hydrography(ix,iy,is,levt,levs); |
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mit_writefield(fullfile(new,'lev_t.shice.init'),mdsiocompact(t),fmt); |
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mit_writefield(fullfile(new,'lev_s.shice.init'),mdsiocompact(s),fmt); |
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|
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% create geopotential anomaly |
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gravity = 9.81; |
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rho0 = 1035; |
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tol0 = 0; |
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si2dbar = 1e-4; |
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disp('compute geopotential anomaly') |
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load VGRID |
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zg = zf; |
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dzm = abs([zg(1)-zc(1) .5*diff(zc)]); |
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dzp = abs([.5*diff(zc) zc(end)-zg(end)]); |
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hFacMin = 0.1; |
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for ks=1:length(ix) |
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t0 = squeeze(mean(t(ix(ks),iy(ks),:,:),4)); |
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s0 = squeeze(mean(s(ix(ks),iy(ks),:,:),4)); |
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% compute potential anomaly exactly as in code |
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% for that we need the correct density |
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rho = []; |
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p = abs(zc(:))*gravity*rho0*si2dbar; |
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dp = p; |
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tol1 = 1; |
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tol2 = 2; |
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kp = 0; |
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while tol1 > tol0 |
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kp = kp+1; |
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p0 = p; |
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if strcmp(eostype,'mdjwf') |
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drho = densmdjwf(s0,t0,p(:,end))-rho0; |
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else |
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error(['unknown eostype: ' eostype]); |
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end |
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phiHydF(1) = 0; |
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for k=1:length(zc(:)); |
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phiHydC(k) = phiHydF(k) + dzm(k)*gravity*drho(k)/rho0; |
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phiHydF(k+1) = phiHydC(k) + dzp(k)*gravity*drho(k)/rho0; |
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end |
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p = [p (gravity*rho0*abs(zc(:)) + phiHydC(:)*rho0)/gravity/rho0]; |
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dp = p(:,end)-p(:,end-1); |
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tol2 = tol1; |
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tol1 = sqrt(sum(dp.^2)); |
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if tol1==tol2; break; end; |
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end |
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% find the appropriate level |
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zloc = zn(is(ks)); |
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kl0 = max(find(abs(zg-hFacMin*zg)<=abs(zloc))); |
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hfloc= squeeze(hf(ix(ks),iy(ks),:)); |
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kl = min(find(hfloc>0)); |
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if isempty(kl); |
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kl = 0; |
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ph(ks) = 0; |
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else |
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ph(ks) = phiHydF(kl); |
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end |
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disp(sprintf('kl0 = %u, kl = %u',kl0,kl)); |
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end |
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|
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pload = 0*hn; |
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for ks=1:length(ix) |
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pload(ix(ks),iy(ks)) = -ph(ks)*rho0; |
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end |
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|
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mit_writefield(fullfile(new,['pload.' eostype]),mdsiocompact(pload),fmt); |
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