update dealing with missing values

Author: rhaegar325

src/access_mopper/configurations.py

@@ -424,7 +424,8 @@ def cmorise(self, file_paths, compound_name, cmor_dataset_json, mip_table):
             data = np.transpose(data, (2, 3, 1, 0))
 
         # Define CMOR variable
-        cmorVar = cmor.variable(cmor_name, variable_units, cmor_axes, positive=positive)
+        missing = 1.e20
+        cmorVar = cmor.variable(cmor_name, variable_units, cmor_axes, positive=positive, missing_value=missing)
 
         # Write data to CMOR
         cmor.write(cmorVar, data, ntimes_passed=len(time_numeric))