Geographic location
Arctic
30
Arctic Ocean
Laptev Sea
28
Barents Sea
12
Kara Sea
9
Amundsen Basin
6
East Siberian Sea
5
Gakkel Ridge
5
Makarov Basin
5
Rus’
4
Yenisey
4
Morris Jesup Rise
3
Pacific
3
Taymyr
3
Alpha Ridge
2
Franz Josef Land
2
Norwegian Sea
2
St. Anna Trough
2
Svalbard
2
Van Veen
2
Bear Island
1
Boreas
1
Mueller
1
Severnaya Zemlya
1