Geographic location
Arctic
51
Arctic Ocean
Laptev Sea
51
Pacific
8
Amundsen Basin
7
Barents Sea
6
Gakkel Ridge
6
Kara Sea
6
Makarov Basin
5
Morris Jesup Rise
5
Taymyr
5
East Siberian Sea
3
Antarctic
2
Buor-Khaya
2
Khaya
2
Rus’
2
Sigrid
2
Van Veen
2
Boreas
1
Canada
1
Franz Josef Land
1
Fuchs
1
Greenland
1
Hanssen
1
Martina
1
Nikolay
1
St. Anna Trough
1
Svalbard
1
Yakutsk
1
Yenisey
1