cdo remap from ERA5 grid (lonlat) to gx1 grid (generic)
Added by Wilma Wang about 1 month ago
Hello,
I'm trying to make model forcing data using CDO and need to regrid ERA5 data (lonlat) into a gx1 grid(generic).
First, I ran
cdo griddes target_grid.nc > mygrid cdo remapbil,mygrid ERA5.nc gx1_forcing.nc
But when I checked the generated data using panoply, I realized that there are missing values on Greenland which should not be existed.
And the CDO version is 1.8.2
I have attached the relevant files.
How can I fix it?I have spent quite a bit of time on this and would be most grateful for any help.
Wilma
target_grid.nc (481 KB) target_grid.nc | |||
mygrid (2.36 MB) mygrid | |||
gx1_forcing.nc (3.75 MB) gx1_forcing.nc | generated forcing data | ||
ERA5.nc (23.8 MB) ERA5.nc | |||
clipboard-202404151104-xnmzd.png (352 KB) clipboard-202404151104-xnmzd.png |
Replies (3)
RE: cdo remap from ERA5 grid (lonlat) to gx1 grid (generic) - Added by Wilma Wang about 1 month ago
I rechecked the distribution of variables on the target grid, and it seems that there are missing values in Greenland using panoply, but they don't show up using ncview.So I don't think these missing values are caused by CDO.
RE: cdo remap from ERA5 grid (lonlat) to gx1 grid (generic) - Added by Karin Meier-Fleischer about 1 month ago
Hi Wilma,
your target grid is a curvilinear grid where a pole is defined over greenland. So the remapped data is correct.
Plot with Python shows the same as panoply:
RE: cdo remap from ERA5 grid (lonlat) to gx1 grid (generic) - Added by Wilma Wang about 1 month ago
Hi,Karin
Thanks for your check with python!
Best regards,
Wilma