Geographic location
Antarctic
Southern Ocean
12
The Antarctic
10
Pacific
7
Greenland
4
Drake Passage
3
Indian
3
Mid-Atlantic Ridge
3
Weddell
3
Antarctic Peninsula
2
Norwegian Sea
2
Antarctic Ocean
1
Austral
1
Canada
1
Curl
1
Deacon
1
Flop
1
Guayaquil
1
Isi
1
Kane
1
Las Palmas
1
New Zealand
1
Orleans
1
Rockall Plateau
1
Ross Sea
1
Scripps
1
Tanhua
1
Taylor Dome
1
Weddell Sea
1
West Antarctic Ice Sheet
1
West European Basin
1