cdo remapbil (Abort): Unsupported projection coordinates (Variable: precip)!
Added by Tanmoyee Bhattacharya almost 5 years ago
I have a netcdf file out.nc
netcdf CDR_India_2019-01-15113832pm_1983 {
dimensions:
lon = 119 ;
lat = 173 ;
datetime = UNLIMITED ; // (365 currently)
variables:
float lon(lon) ;
float lat(lat) ;
float datetime(datetime) ;
datetime:units = "days since 1983-01-01" ;
datetime:calendar = "gregorian" ;
int crs ;
crs:long_name = "Lon/Lat Coords in WGS84" ;
crs:grid_mapping_name = "latitude_longitude" ;
crs:longitude_of_prime_meridian = 0. ;
crs:semi_major_axis = 6378137. ;
crs:inverse_flattening = 298.257223563 ;
float precip(datetime, lat, lon) ;
precip:grid_mapping = "crs" ;
precip:coordinates = "lon lat" ;
// global attributes:
:Conventions = "CF-1.6" ;
:history = "Sat Jun 1 05:58:06 2019: ncatted -a coordinates,precip,c,c,lon lat CDR_India_2019-01-15113832pm_1983.nc\nSat Jun 1 05:57:09 2019: ncatted -a coordinates,precip,c,c,lon lat CDR_India_2019-01-15113832pm_1983.nc" ;
I want to remap this netcdf file to 0.01 degree.My grid Defination file is
gridtype = lonlat
gridsize = 31626
xsize = 251
ysize = 126
yfirst = 31.375
yinc = 0.01
xfirst = 75.625
xinc = 0.01
But when I am using the command cdo remapbil,myGridDef out.nc out2.nc
The error coming cdo remapbil (Abort): Unsupported projection coordinates (Variable: precip)!
What problem happens in this file nhot getting.Can anyone help me?
Replies (4)
RE: cdo remapbil (Abort): Unsupported projection coordinates (Variable: precip)! - Added by Karin Meier-Fleischer almost 5 years ago
Hi Tanmoyee,
without the data file I can only guess that the lon and lat units attribute have to be set to "degrees_east" respectively "degrees_north".
-Karin
RE: cdo remapbil (Abort): Unsupported projection coordinates (Variable: precip)! - Added by jyoti lodha over 4 years ago
Hi
I also got the same error:
cdo remapbil,remap.txt PERSIANN_2019-11-18044335am_2006.nc tt1.nc
cdo remapbil (Abort): Unsupported projection coordinates (Variable: precip)!
What is the issue?
I have attached the sample file of the data.
Wait for the reply.
| PERSIANN_2019-11-18044335am_2006.nc (4.15 MB) PERSIANN_2019-11-18044335am_2006.nc | Data | ||
| remap.txt (96 Bytes) remap.txt | remap txt file |
RE: cdo remapbil (Abort): Unsupported projection coordinates (Variable: precip)! - Added by Karin Meier-Fleischer over 4 years ago
Hi Jyoti,
if you take a look at PERSIANN_2019-11-18044335am_2006.nc you can see that the coordinate variables lat and lon don't have the units attribute.
You can set it with NCO's ncatted:
ncatted -O -a units,lon,c,c,"degrees_east" -a units,lat,c,c,"degrees_north" PERSIANN_2019-11-18044335am_2006.nc
Then you can remap the file:
cdo remapbil,remap.txt PERSIANN_2019-11-18044335am_2006.nc tt1.nc
-Karin
RE: cdo remapbil (Abort): Unsupported projection coordinates (Variable: precip)! - Added by jyoti lodha over 4 years ago
Thanks a lot. It works 