Merge pull request #1666 from knutfrode/dev

Using compat=override, when merging ROMS files with gridfile

Author: knutfrode

opendrift/readers/reader_ROMS_native.py

@@ -156,7 +156,7 @@ def drop_non_essential_vars_pop(ds):
 
         if gridfile is not None:  # Merging gridfile dataset with main dataset
             gf = xr.open_dataset(gridfile)
-            self.Dataset = xr.merge([self.Dataset, gf])
+            self.Dataset = xr.merge([self.Dataset, gf], compat='override')
 
         if 'Vtransform' in self.Dataset.variables:
             self.Vtransform = self.Dataset.variables['Vtransform'].data  # scalar