a problem with remap?

I am trying to subtract two datasets which they are not in the same grid so first regrid on to the another (remap on file to another one).

cdo remapcon,r144x143 -selyear,1979/2005 fil1.nc fil11443143.nc

it worked without problem

now subtract
cdo sub fil11443143.nc fil2.nc

I got this
Warning (cdfScanVarAttributes) : NetCDF: Variable not found - time_centered
cdo sub (Warning): Latitude orientation differ! First grid: S->N; second grid: N->S
cdo sub (Warning): Grid longitudes differ!

I checked the output and yes it is missed up

Could you please help me on this?

Samples.7z (24.6 MB) Samples.7z

Replies (5)

RE: a problem with remap? - Added by Ralf Mueller over 7 years ago

the coordinates attribute of SWnet is wrong. you can change it with an nco

ncatted -a coordinates,SWnet,m,c,"lat lon" file1.nc

the old value is

SWnet:coordinates = "time_centered lon lat"

but

there is not variable time_centered in your file
the dimensions are somewhat mixed, because the data definition of SWnet is
```
SWnet(time_counter, lat, lon)
```

With the above step, the waring is gone. please check the output!

hth
ralf

RE: a problem with remap? - Added by Bic bary over 7 years ago

Thanks I ran the first command you proposed and I got this:
nco_err_exit(): ERROR Short NCO-generated message (usually name of function that triggered error): nco__open()
nco_err_exit(): ERROR Error code is -101. Translation into English with nc_strerror(-101) is "NetCDF: HDF error"
nco_err_exit(): ERROR NCO will now exit with system call exit(EXIT_FAILURE)

RE: a problem with remap? - Added by Bic bary over 7 years ago

you meant this
ncatted -a coordinates,SWnet,m,c,"lat lon" file1.nc out.nc

Then I use out.nc?

When I did this, the error gone.

but when I used cdo sub out.nc... with the other file I still get the warning. Could you please post the commands you used?

RE: a problem with remap? - Added by Bic bary over 7 years ago

It was solved .I want to remove the files posted in my question. How to do this? Thanks

RE: a problem with remap? - Added by Bic bary over 7 years ago

Bic bary wrote:

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