Open Polar Keyword
Antarc*
245
Antarctic
207
Antarctica
79
Southern Ocean
72
Sea ice
29
Ice Sheet
26
North Atlantic
21
East Antarctica
20
Blue whale
19
NADW
16
North Atlantic Deep Water
16
Drake Passage
13
Arctic
12
Antarctic Ocean
10
Weddell Sea
10
ice core
10
Prydz Bay
8
antartic*
8
Ross Sea
6
baleen whale
6
Antarctic Peninsula
5
Arctic Ocean
4
IPY
4
Marion Island
4
National Institute of Polar Research
4
Scotia Sea
4
South Atlantic Ocean
4
Amsterdam Island
3
Amundsen Sea
3
Antarctic Krill
3
Dronning Maud Land
3
Enderby Land
3
Greenland
3
Heard Island
3
Iceberg*
3
McDonald Islands
3
Ocean Island
3
Riiser-Larsen Sea
3
Wilkes Land
3
国立極地研究所
3
Antarctic Toothfish
2
Elephant Seals
2
Euphausia superba
2
Giant Petrels
2
Ice Shelves
2
Ice cap
2
Icefish
2
International Polar Year
2
Kerguelen Islands
2
Polarforschung
2
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