I want to interpolate onto different grid, how can I do this?

1 次查看（过去 30 天）
Michael
Michael 2014-6-11
评论： Michael 2014-6-11
I want to interpolate a 365 x 3127 x 254 grid onto an 365 x 84 x 180 grid. What is the best way to do this?
I think I should use interp2 (see code below) but I get the error 'Subscript indices must either be real positive integers or logicals.'. I have checked this answer but I can't seem to fix it so I ask if there is an easier way to do this?
clear
clc
load '/work/uo0122/u253082/REF.mat'
weight = cos(REF_lat);
lon = ones(180,84);
lat = ones(84,180);
lat = lat';
for yr = 1993%:2010;
yr
load(['/work/uo0122/u253082/Mat_Time/ssh_',num2str(yr),'.mat']);
ssh = ssh_int;
mask = zeros(size(ssh_int));
mask(find(ssh_int > -9E33)) = 1;
mask = repmat(mask,1,365);
ssh = ssh.*mask
for day = 1:size(ssh,1);
ssh(i,:,:) = interp2(REF_lon,REF_lat,squeeze(ssh(i,:,:)),lon,lat,'linear');
end
end
I tried getting rid of NaN's in SSH with no fix and also converting every variable to logical format with no fix. REF_lat & REF_lon = 3127 x 254 reference long and lat. SSH is a 365 x 3127 x 254 matrix and contains NaN's.
Many thanks for your attention! Michael

请先登录，再回答此问题。

回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Interpolation 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by