how to regrid MPI-ESM-MR to 0.5*05 degree from 1.87 degree lat*1.87 degree lon
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I have to billinear interpolate MPI-ESM-MR netcdf file from 1.87*1.87 degree to 0.5*0.5 degree. latitude=-88.572166442871100 to 88.572166442871100 longitude=0 to 358.1250 I see a code in forum by tchu
%Regrid Air relative humidity Example 2004
rhum = ncread('rhum.mon.mean.nc','rhum');
Rhum2004 = squeeze(rhum(:,:,:,301:312));
size(Rhum2004)
Rhum2004(find(Rhum2004==32766|Rhum2004==-32767))=nan;
Rhum2004=[Rhum2004(73:144,:,:);Rhum2004(1:72,:,:)];%-180->180
[OY,OX]=meshgrid(90:-2.5:-90, -180:2.5:177.5);
[NY,NX]=meshgrid(89.875:-0.25:-89.875,-179.875:0.25:179.875);
RH2004=nan(1440,720,12);
for i=1:12
RH2004(:,:,i) = ...
single(interp2(OY,OX,Rhum2004(:,:,i),NY,NX,'bilinear'));
end
but not getting
Rhum2004 = squeeze(rhum(:,:,:,301:312));
size(Rhum2004)
Rhum2004(find(Rhum2004==32766|Rhum2004==-32767))=nan;
Rhum2004=[Rhum2004(73:144,:,:);Rhum2004(1:72,:,:)];%-180->180
RH2004=nan(1440,720,12);
Can anybody help me.I am totally new for this work.
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採用された回答
Chad Greene
2017 年 8 月 30 日
I think this:
interp2(OY,OX,Rhum2004(:,:,i),NY,NX,'bilinear')
should be
interp2(OY,OX,Rhum2004(:,:,i),NY,NX,'linear')
which is bilinear, but it's just called linear. That's the default behavior, so you could just as easily do
interp2(OY,OX,Rhum2004(:,:,i),NY,NX)
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