Open Polar Keyword
Sea ice
Antarc*
175
Arctic
130
Antarctic
115
Antarctica
102
Polar meteorology and glaciology
67
国立極地研究所
65
Polar Science
64
National Institute of Polar Research
58
Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology
55
Arctic Ocean
48
Memoirs of National Institute of Polar Research
43
Polar Research
43
Southern Ocean
37
Polar Biology
35
Proceedings of the NIPR Symposium on Polar Biology
34
ice algae
30
East Antarctica
27
Greenland
19
Ice Sheet
18
Chukchi
16
Copepods
15
Polar bioscience
15
Chukchi Sea
14
ice core
11
Bering Sea
10
Weddell Sea
10
Ice Shelf
9
okhotsk sea
9
Climate change
8
E. Antarctica
8
Svalbard
8
Barents Sea
7
Global warming
7
Ross Sea
7
Adelie penguin
6
Northern Sea Route
6
Euphausia superba
5
Greenland Sea
5
Iceberg*
5
Prydz Bay
5
albedo
5
East Ongul Island
4
Ongul Island
4
Pacific Arctic
4
Phytoplankton
4
Pygoscelis adeliae
4
Sakhalin
4
Tundra
4
Zooplankton
4
more ...