Open Polar Keyword
国立極地研究所
35
Arctic
22
Antarc*
10
Antarctica
6
East Antarctica
6
Sea ice
6
Antarctic
5
Siberia
5
Climate change
4
Greenland
4
ice core
4
Alaska
3
National Institute of Polar Research
3
DML
2
Dronning Maud Land
2
EPICA
2
Svalbard
2
Antarctic Ocean
1
Cambridge Bay
1
East Greenland
1
East Greenland Ice-core Project
1
Greenland Ice core Project
1
Greenland ice core
1
Ice Sheet
1
Ice Shelf
1
Northern Sea Route
1
Northwest passage
1
Nunavut
1
Ny Ålesund
1
Ny-Ålesund
1
Tundra
1