Error trying to convert from grads to netCDF

[jkreuz]

Hi I'm having the following error when I try to convert from grads file to netCDF

grads2netcdf.py attm103.ctl

Traceback (most recent call last): File "grads2netcdf.py", line 3, in open_CtlDataset('[PATH]/output/exp_103/attm103.ctl').to_netcdf('[PATH]/output/exp_103/attm103.nc') File "/home/[USER]/.local/lib/python3.7/site-packages/xgrads/io.py", line 42, in open_CtlDataset ctl = CtlDescriptor(file=desfile) File "/home/[USER]/.local/lib/python3.7/site-packages/xgrads/core.py", line 133, in init self.parse(fileContent) File "/home/[USER]/.local/lib/python3.7/site-packages/xgrads/core.py", line 177, in parse self._processDSets(dpath_str) File "/home/[USER]/.local/lib/python3.7/site-packages/xgrads/core.py", line 204, in _processDSets part = (strTim + incre * l).item().strftime(fmt) TypeError: Cannot get a common metadata divisor for NumPy datetime metadata [s] and [M] because they have incompatible nonlinear base time units

[miniufo]

Hi @julianocruz, Thanks for bringing me this bug. This is related to a previous issue #3 that one month interval is generally not a constant in unit of days or seconds.

Please try with the latest version from github (I haven't updated that on pypi) and tell me if current version works fine.

[miniufo]

Oops I notice that there is a keyward sequential in the OPTIONS of your ctl file. I don't think this is currently supported properly. Would you please share part of your binary dataset for me so that I can dig this out? I've opened another issue #11 related to this.

[jkreuz]

I generated a simulation for 3 years and it split it in three files.

attm103_1996.grd.zip attm103_1997.grd.zip attm103_1998.grd.zip

[miniufo]

Thanks @julianocruz for your data. Would you please try with the latest version from github and tell me if current version works fine.

[jkreuz]

Thank you @miniufo ! Now it worked. I just didn't have time to check the netCDF file yet.