Open Polar Keyword
Antarc*
128
Antarctic
86
Antarctica
63
Arctic
22
Sea ice
16
Svalbard
9
Ice Sheet
8
polar night
7
East Antarctica
6
Antarctic Ocean
4
E. Antarctica
4
Southern Ocean
4
South pole
3
国立極地研究所
3
Bouvet Island
2
East Ongul Island
2
Enderby Land
2
Kiruna
2
National Institute of Polar Research
2
Norwegian Sea
2
Ongul Island
2
Queen Maud Land
2
Alaska
1
Amundsen-Scott
1
Antarctic Peninsula
1
Barrow
1
Global warming
1
Greenland
1
Icebreaker
1
Iceland
1
Longyearbyen
1
Marion Island
1
North Atlantic
1
North Pole
1
Shirase Glacier
1
Spitsbergen
1
Victoria Land
1
West Antarctica
1