Set up 4326 mapset grass --text -c EPSG:4326 ./G_4326 g.region res=1 -pa w=-180 e=180 s=-90 n=90 -pas#1° x 1°exit 3031 mapset grass -c EPSG:3031 ./G_3031#500 m resolution, matching BedMachine boundariesbound=3333250 g.region res=500 w=-${bound}e=${bound}s=-${bou...