Minor update to fix reading of ocean priors, as in statevectorNHgridded.py

da/co2gridded/statevector.py

@@ -77,7 +77,7 @@ class CO2GriddedStateVector(StateVector):
 
             f = io.ct_read(file, 'read')
 
-            if 'pco2' in file: 
+            if 'pco2' in file or 'cov_ocean' in file: 
                 cov_ocn = f.get_variable('CORMAT')
                 cov = cov_ocn
             else: