Open Polar Keyword
Antarc*
99
Antarctic
Ongul Island
59
Antarctica
47
East Ongul Island
41
Sea ice
25
East Antarctica
11
Ice Sheet
11
Icebreaker
6
Prince Olav Coast
6
Adelie penguin
4
National Institute of Polar Research
4
South pole
4
Antarctic Peninsula
2
Dronning Maud Land
2
Enderby Land
2
Ice cap
2
Iceberg*
2
Norwegian Polar Institute
2
Rumpa Island
2
Southern Ocean
2
Victoria Land
2
Weddell Seal
2
Antarctic Ocean
1
Nanorchestes antarcticus
1
Shirase Glacier
1
antarcticus
1
ice core
1
国立極地研究所
1