Geographic location
Antarctic
15
Arctic
15
Arctic Ocean
15
Pacific
11
The Antarctic
10
Indian
7
Treadwell
5
Antarctic Ocean
4
Malmgren
4
Noto
4
Weddell
4
Weddell Sea
4
Annenkova
3
Fernandez
3
Jiménez
3
McIntosh
3
Morales
3
Norway
3
Ramirez
3
Rouse
3
Scripps
3
Southern Ocean
3
Alta
2
Alvarez
2
Bellingshausen Sea
2
Bering Sea
2
British Columbia
2
Burton
2
Canada
2
Diaz
2
Fanning
2
Flat Top
2
Helgoland
2
Kerguelen
2
Lopez
2
Monson
2
Nakaya
2
New Zealand
2
Newell
2
Núñez
2
Okhotsk
2
Palmer Archipelago
2
Pavlova
2
Reinhardt
2
Scotia Sea
2
Sedov
2
South Shetland Islands
2
Van Mieghem
2
West Antarctica
2
Bertrand
1
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