Improv. 3:Automatic stop if parameters incorrect/no data available

[neojavan]

There are no automatic stops produced if users select a reference location that is over water or if you select only either tmean or prec but leave the rotation set to both
Users must wait until the run is finished only to discover that no map is produced and they still do not know which inputs were entered incorrectly.

Required action:
Add automatic stop if location is over water i.e. if reference site input data is all NA, or, if you weight only with either tmean or prec but leave the rotation set to both

Benefits:
You do not have to wait until the run is performed to discover that no similarity map was produced.

To Do: Mockup - What message should be shown?

[neojavan]

According to DAr and EJ this "if you weight only with either tmean or prec but leave the rotation set to both" should not be done.