Open Polar Keyword
Antarc*
72
Antarctic
56
Antarctica
47
Sea ice
27
Ice Sheet
14
Arctic
12
National Institute of Polar Research
10
Southern Ocean
8
Svalbard
8
East Antarctica
7
Amundsen Bay
4
国立極地研究所
4
South pole
3
Amundsen-Scott
2
Antarctic Ocean
2
Antarctic Peninsula
2
Global warming
2
Icebreaker
2
Kiruna
2
West Antarctica
2
ice algae
2
ice core
2
okhotsk sea
2
E. Antarctica
1