Geographic location
Arctic
12
Pacific
10
Antarctic
5
Bering Sea
4
Norway
4
Ridley
4
Indel’
3
King George Island
3
Ushuaia
3
Weddell
3
Weddell Sea
3
Alvarez
2
Austin
2
Barents Sea
2
Blunt Point
2
British Columbia
2
Canada
2
Genova
2
Greenland
2
Harpa
2
Harper
2
Indian
2
Kandalaksha
2
Kara Sea
2
Kerguelen
2
Orlovka
2
Pyramid
2
Ross Sea
2
Sedov
2
Short Point
2
Sneli
2
Svalbard
2
The Antarctic
2
Vardø
2
White Sea
2
Zelentsy
2