poly      greenland 473,53 479,99 451,152 408,197 386,238 369,253 311,246 282,245 266,228 255,196 265,167 307,93 344,84 399,79 442,62
poly      canada 343,310 376,403 396,437 473,507 518,510 506,535 536,542 602,526 601,52 591,24 570,37 511,134 468,162 436,184 403,247 370,253 345,249 310,245 306,257
poly      russia 4,597 198,599 255,571 289,546 297,522 292,506 265,466 152,340 175,283 122,131 156,122 175,122 214,42 230,1 2,2
poly      alaska 385,424 468,503 517,508 517,513 508,530 452,528 416,543 404,581 385,599 308,598 285,555 288,543 300,534 294,499 295,456
default   circumpolar