Geographic location
Arctic
4
Greenland
4
Gronland
4
Indian
4
New Zealand
Pacific
4
Alicia
2
Antarctic
2
Bergen
2
Bering Sea
2
Blanchard
2
Canada
2
Cartwright
2
Christiania
2
Dumont d'Urville
2
Dumont-d'Urville
2
Forbes
2
Haddon
2
John Rodgers
2
Koren
2
Ochre
2
Reimer
2
Rupert
2
Shackleton
2
Stephenson
2
Sud-Georgien
2
Svalbard
2
Tromso
2
Zelenchuk
2