Open Polar Keyword
Antarc*
Antarctic
642
Antarctica
337
Sea ice
92
National Institute of Polar Research
68
Ice Sheet
59
国立極地研究所
54
East Antarctica
41
Ongul Island
33
Icebreaker
29
East Ongul Island
23
Memoirs of National Institute of Polar Research
23
Polar Research
23
Prince Olav Coast
23
Enderby Land
22
ice core
22
Antarctic Ocean
20
Southern Ocean
19
Arctic
15
South pole
15
Dronning Maud Land
14
Iceland
13
Queen Maud Land
11
Victoria Land
11
aurora australis
11
Adelie penguin
10
Amundsen Bay
10
E. Antarctica
8
Ross Island
7
polar night
7
Antarctic Peninsula
6
Tonagh Island
6
SCAR
5
Scientific Committee on Antarctic Research
5
Weddell Seal
5
Australian Antarctic Division
4
Euphausia superba
4
Iceberg*
4
International Polar Year
4
King George Island
4
McMurdo Sound
4
Ross Sea
4
West Antarctica
4
Arctic Ocean
3
IPY
3
Rumpa Island
3
South Shetland Islands
3
ice algae
3
Amundsen-Scott
2
Antarctic Krill
2
more ...