bathymetry image2 Bathymetry image嗨，我正在尝试更改测深仪的分辨率（2041x1441）以适合叶绿素（960x348）。我设法在matlab中使用griddata做到了这一点，但是现在当我使用imagesc绘制图形时，地图的绘制方向朝上。难道我做错了什么？
下面是我尝试过的脚本。
clear all; close all;
fn='SA_OCCCI_Monthly_199801.nc';
chl_lat = ncread(fn, 'lat');
chl_lon = ncread(fn, 'lon');
chl_chla = ncread(fn, 'chlor_a');
chl_chl_a = fliplr(chl_chla);
[chl_lat2d,chl_lon2d] = meshgrid(chl_lat,chl_lon);
chl_lon_min = min(chl_lon2d(:));
chl_lon_max = max(chl_lon2d(:));
chl_lat_min = min(chl_lat2d(:));
chl_lat_max = max(chl_lat2d(:));
fn2='GEBCO_2019_20.0_-32.0_30.0_-38.0.nc';
bath_lon = ncread(fn2, 'lon'); bath_lon=fliplr(bath_lon);
bath_lat = ncread(fn2, 'lat'); bath_lat=fliplr(bath_lat);
bath_depth_orig= ncread(fn2,'elevation');
bath_depth=permute(bath_depth_orig,[2,1]);
bath_depth=flipud(bath_depth);
gridded_bath = griddata(bath_lon,bath_lat,bath_depth,chl_lon2d,
chl_lat2d);
gridded_bath = flipud(gridded_bath);
shelf_bath=gridded_bath;
shelf_bath(gridded_bath>0 | gridded_bath<-200)=NaN;
shelf_bath = fliplr(shelf_bath);
figure;
subplot(2,2,1); imagesc(bath_lon,bath_lat,bath_depth'); colorbar;
subplot(2,2,2); imagesc(chl_lon,chl_lat,shelf_bath'); colorbar;
subplot(2,2,3); imagesc(chl_lon,chl_lat,chl_chl_a'); colorbar;
subplot(2,2,4); imagesc(chl_lon,chl_lat,gridded_bath'); colorbar;
我最后得到的图像在右侧有两个地图。