Well Known Text
 
WKT Version 2
PROJCRS["NSIDC Sea Ice Polar Stereographic North",BASEGEOGCRS["Hughes 1980",DATUM["Hughes 1980",ELLIPSOID["Hughes 1980",6378273,298.279411123061,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",7058]],ID["EPSG",1359]],ID["EPSG",10345]],CONVERSION["US NSIDC Sea Ice polar stereographic north",METHOD["Polar Stereographic (variant B)",ID["EPSG",9829]],PARAMETER["Latitude of standard parallel",70,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],ID["EPSG",8832]],PARAMETER["Longitude of origin",-45,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],ID["EPSG",8833]],PARAMETER["False easting",0,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",8806]],PARAMETER["False northing",0,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",8807]],ID["EPSG",19865]],CS[Cartesian,2,ID["EPSG",4468]],AXIS["Easting (X)",South,MERIDIAN[45.0,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]]]],AXIS["Northing (Y)",South,MERIDIAN[135.0,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]]]],LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",3411]]