Geographic location
Southern Ocean
Antarctic
23
Indian
15
The Antarctic
14
Pacific
12
Kerguelen
6
Arctic
4
Drake Passage
2
Greenland
2
Kerguelen Islands
2
New Zealand
2
Arctic Ocean
1
Austral
1
Bering Strait
1
East Antarctica
1
Ferreira
1
Law Dome
1
Law Dome Summit
1
Norwegian Sea
1
Pond Lake
1
Svarthamaren
1
Weddell
1