Geographic location
Antarctic
5
Arctic
5
Arctic Ocean
Bodin
5
Sedov
5
Weddell
5
Weddell Sea
5
Seta
4
Austin
3
Canada
3
Indian
3
Norway
3
Pacific
3
Willems
3
Argentina
2
Blair
2
Christchurch
2
Degen
2
Hicks
2
Laptev Sea
2
Levin
2
New Zealand
2
Oldenburg
2
Orleans
2
Porcupine Seabight
2
Svalbard
2
Svalbard Archipelago
2
White Sea
2
Denison
1
Genova
1
Noire
1
Roten
1