Open Polar Keyword
National Institute of Polar Research
Antarc*
152
Antarctic
123
Antarctica
75
国立極地研究所
66
Memoirs of National Institute of Polar Research
44
Polar Research
44
Sea ice
23
Ice Sheet
15
Southern Ocean
14
East Antarctica
13
Antarctic Ocean
11
Arctic
11
Dronning Maud Land
10
International Polar Year
9
aurora australis
9
IPY
7
Icebreaker
6
Iceland
6
Svalbard
6
McMurdo Sound
5
E. Antarctica
4
Enderby Land
4
Ross Island
4
Australian Antarctic Division
3
Antarctic Krill
2
Black Island
2
Euphausia superba
2
King George Island
2
Ongul Island
2
Prydz Bay
2
Ross Sea
2
Tonagh Island
2
Wilkes Land
2
ice algae
2
ice covered areas
2
okhotsk sea
2
Barents Sea
1
Elephant Seal
1
Greenland
1
Greenland Sea
1
Ny Ålesund
1
Ny-Ålesund
1