Open Polar Keyword
National Institute of Polar Research
国立極地研究所
62
Antarc*
58
Antarctic
51
Antarctica
24
Sea ice
11
Ice Sheet
7
Antarctic Ocean
6
Southern Ocean
6
Dronning Maud Land
5
East Antarctica
5
aurora australis
5
Arctic
4
IPY
4
International Polar Year
4
Icebreaker
3
Iceland
3
Memoirs of National Institute of Polar Research
2
Polar Research
2
Ross Island
2
Svalbard
2
Antarctic Krill
1
Australian Antarctic Division
1
Black Island
1
E. Antarctica
1
Enderby Land
1
Euphausia superba
1
Ongul Island
1
Prydz Bay
1
Ross Sea
1
Tonagh Island
1
ice algae
1
ice covered areas
1
okhotsk sea
1