Using units.to_target in density area scaling
Using units.to_target in density area scaling

Reworked the area_scale bit so that it now uses built-in units_to_target

Note that assumption still is that grid spacing (in degrees) is uniform

Also, would be faster to calculate this first-time only and then store?

OceanPARCELS/parcels,OceanPARCELS/parcels