Remove projection variable.

climax/main/preprocess/preprocess_OBS.py

@@ -15,7 +15,7 @@ import xarray as xr
 
 # locals
 from climax.core.cli import preprocess_obs_parser
-from climax.core.constants import CORDEX_VARIABLES
+from climax.core.constants import CORDEX_VARIABLES, PROJECTION
 from pysegcnn.core.logging import log_conf
 from pysegcnn.core.utils import search_files
 from pysegcnn.core.trainer import LogConfig
@@ -88,6 +88,9 @@ if __name__ == '__main__':
             ds['time'] = np.asarray([t.astype('datetime64[D]') for t in
                                      ds.time.values])
 
+            # drop projection variable, if present
+            ds = ds.drop_vars(PROJECTION) if PROJECTION in ds.data_vars else ds
+
             # set NetCDF file compression for each variable
             for _, var in ds.data_vars.items():
                 var.encoding['zlib'] = True