CDO

Hi Hem,

can you upload the data?

-Karin

Hem Nalini Morzaria-Luna wrote:

Hi, I am trying to regrid CIMP5 output

cdo genbil,r802x404 MIROC-ESM-CHEM_rcp26_r1i1p1.nc MIROC-ESM-CHEM_rcp26_r1i1p1_wgt.nc
cdo genbil (Abort): Unsupported grid type: generic

cdo sinfon: Processed 7 variables over 1 timestep ( 0.00s )

File format : netCDF
-1 : Institut Source Ttype Levels Num Points Num Dtype : Parameter name
1 : unknown MIROC-ESM-CHEM constant 44 1 1 1 F64 : sigma
2 : unknown MIROC-ESM-CHEM instant 1 2 49152 2 F32 : eta
3 : unknown MIROC-ESM-CHEM constant 1 2 49152 2 F32 : depth
4 : unknown MIROC-ESM-CHEM constant 44 1 1 1 F64 : zlev
5 : unknown MIROC-ESM-CHEM constant 44 1 2 3 F64 : sigma_bnds
6 : unknown MIROC-ESM-CHEM constant 44 1 2 3 F64 : zlev_bnds
7 : unknown MIROC-ESM-CHEM instant 44 1 49152 2 F32 : so
Grid coordinates :
1 : generic : points=1
2 : lonlat : points=49152 (256x192)
lon : 0.703125 to 359.297 by 1.40625 degrees_east circular
lat : -89.1444 to 89.1444 degrees_north
available : cellbounds
3 : generic : points=2
Vertical coordinates :
1 : generic : levels=44
lev : 2.5 to 5450
bounds : 0-5 to 5400-5500
2 : surface : levels=1

Karin.
Thanks, yes, I have included two of the files

Time coordinate : 1 step
RefTime = 1850-01-01 00:00:00 Units = days Calendar = standard Bounds = true
YYYY-MM-DD hh:mm:ss YYYY-MM-DD hh:mm:ss YYYY-MM-DD hh:mm:ss YYYY-MM-DD hh:mm:ss
2035-08-16 17:16:34

I tried using ncatted to assign coordinates

ncatted -a coordinates,so,c,c,"lon lat" MIROC-ESM-CHEM_rcp26_r1i1p1.nc

which just creates another entry for a generic grid

and also specifying -selvar so in genbil but that doesn't work either

Karin, I have included the two files, let me know if they are readable.

Hi Hem,

did you use your test data doing genbil? There is no problem using them with e.g. CDO 1.9.2

Compute weights:

cdo genbil,r802x404 tos_Omon_MIROC-ESM_historical_r3i1p1_18501-200512_min_1975-01-2005-12.nc weights1.nc
cdo genbil,r802x404 tos_Omon_MIROC-ESM_rcp45_r1i1p1_20061-210012_min_2070-01-2100-12.nc weights2.nc

cdo remap,r802x404,weights1.nc -selname,tos tos_Omon_MIROC-ESM_historical_r3i1p1_18501-200512_min_1975-01-2005-12.nc out1.nc
cdo remap,r802x404,weights2.nc -selname,tos tos_Omon_MIROC-ESM_rcp45_r1i1p1_20061-210012_min_2070-01-2100-12.nc out2.nc

Which CDO version (cdo -V) are you using? If you use an older CDO version upgrade to the current version.

-Karin

Karin:

So sorry I uploaded the wrong file! These are the correct files, they return the cdo genbil (Abort): Unsupported grid type: generic error.

Hem Nalini Morzaria-Luna wrote:

Karin:

So sorry I uploaded the wrong file! These are the correct files, they return the cdo genbil (Abort): Unsupported grid type: generic error.

Karin, I have included the two files, let me know if they are readable.

Hi Hem,

I don't have any problem with your data doing

cdo genbil,r802x404 so_Omon_MIROC-ESM-CHEM_rcp26_r1i1p1_20061-210012_mean_2020-01-2050-12.nc weights_so1.nc
cdo genbil,r802x404 so_Omon_MIROC-ESM_rcp45_r1i1p1_20061-210012_mean_2070-01-2100-12.nc weights_so2.nc

cdo remap,r802x404,weights_so1.nc so_Omon_MIROC-ESM-CHEM_rcp26_r1i1p1_20061-210012_mean_2020-01-2050-12.nc out_so_1_remap.nc
cdo remap,r802x404,weights_so2.nc so_Omon_MIROC-ESM_rcp45_r1i1p1_20061-210012_mean_2070-01-2100-12.nc out_so_2_remap.nc

Which CDO version do you use (cdo -V)? I'm using 1.9.2.

-Karin

Karin:

Hi, thanks for your help, I finally realized that the issue was that although I thought I had switched to CDO ver 1.9.4, I was still using 1.7. I had an installation problem I missed and cannot solve, I will start a different thread for that.

I actually realized my issue was that the cloud server I was using ran on Ubuntu Trusty (16.04). I tried a different server running bionic (18.04) and I can now use 1.9.3.
I will try to run all my scripts again in this version.