Regridding producing some indicative but spurious errors...

[JimCircadian]

download_cmip --config-path data.cmip_amsr2.EC-Earth3.r2i1p1f1.month.north.json -f MONTH -o YEAR -oc -w 4 --source EC-Earth3 --member r2i1p1f1 north 1940-1-1 1945-12-31 siconca,tas,ta,tos,psl,zg,ua,uas,vas ',,500,,,250|500,10,,' -xs esgf3.dkrz.de aims3.llnl.gov esgf-data03.diasjp.net

preprocess_loader_init -v pretrain.cmip_amsr2.EC-Earth3.r2i1p1f1.month.north

preprocess_add_mask -v pretrain.cmip_amsr2.EC-Earth3.r2i1p1f1.month.north data.amsr2.month.north.json land icenet.data.masks.nsidc:Masks

preprocess_regrid -v -c ./regrid.data.cmip_amsr2.EC-Earth3.r2i1p1f1.month.north.json -ps train -sn train -ss 1940-01-01 -se 1945-6-30 data.cmip_amsr2.EC-Earth3.r2i1p1f1.month.north.json ref.amsr2.north.nc proc.cmip_amsr2.EC-Earth3.r2i1p1f1

Creating this issue:

[14-04-25 16:48:03 :DEBUG   ] - Saving regridded data to processed_data/proc.cmip_amsr2.EC-Earth3.r2i1p1f1/month/north/ta500/1945.nc... 
/home/jambyr/miniconda3/envs/icenet4/lib/python3.11/site-packages/iris/fileformats/netcdf/saver.py:2668: IrisDeprecation: Saving to netcdf with legacy-style attribute handling for backwards compatibility.
This mode is deprecated since Iris 3.8, and will eventually be removed.
Please consider enabling the new split-attributes handling mode, by setting 'iris.FUTURE.save_split_attrs = True'.
  warn_deprecated(message)
[14-04-25 16:48:04 :DEBUG   ] - Regridding processed_data/proc.cmip_amsr2.EC-Earth3.r2i1p1f1/month/north/tos/_regrid_1940.nc
/home/jambyr/miniconda3/envs/icenet4/lib/python3.11/site-packages/iris/fileformats/cf.py:381: IrisCfMissingVarWarning: Missing CF-netCDF boundary variable 'lat_bnds', referenced by netCDF variable 'lat'
  warnings.warn(
/home/jambyr/miniconda3/envs/icenet4/lib/python3.11/site-packages/iris/fileformats/cf.py:381: IrisCfMissingVarWarning: Missing CF-netCDF boundary variable 'lon_bnds', referenced by netCDF variable 'lon'
  warnings.warn(
/home/jambyr/miniconda3/envs/icenet4/lib/python3.11/site-packages/iris/fileformats/cf.py:381: IrisCfMissingVarWarning: Missing CF-netCDF boundary variable 'time_bnds', referenced by netCDF variable 'time'
  warnings.warn(
/home/jambyr/miniconda3/envs/icenet4/lib/python3.11/site-packages/iris/fileformats/cf.py:880: IrisCfMissingVarWarning: Missing CF-netCDF measure variable 'areacello', referenced by netCDF variable 'tos'
  warnings.warn(
[14-04-25 16:48:05 :DEBUG   ] - Saving regridded data to processed_data/proc.cmip_amsr2.EC-Earth3.r2i1p1f1/month/north/tos/1940.nc... 
/home/jambyr/miniconda3/envs/icenet4/lib/python3.11/site-packages/iris/fileformats/netcdf/saver.py:2668: IrisDeprecation: Saving to netcdf with legacy-style attribute handling for backwards compatibility.