Open Polar Keyword
Antarc*
33
Antarctic
25
Antarctica
18
National Institute of Polar Research
10
国立極地研究所
9
Ice Sheet
8
East Antarctica
7
Ross Island
3
East Ongul Island
2
Ongul Island
2
Queen Maud Land
2
Arctic
1
Bellingshausen Sea
1
Black Island
1
Enderby Land
1
IPY
1
Iceberg*
1
International Polar Year
1
McMurdo Sound
1
Ross Sea
1
Sea ice
1
Shirase Glacier
1
South pole
1
Svalbard
1
Tonagh Island
1