Open Polar Keyword
Sea ice
146
okhotsk sea
43
Antarc*
11
Arctic
10
Ice Sheet
8
Antarctica
7
Alaska
5
Methane hydrate
5
Antarctic
4
Hudson Bay
4
Siberia
2
Yakutsk
2
glacier
2
glacier*
2
permafrost
2
Arctic Ocean
1
Barrow
1
Bering Sea
1
East Antarctica
1
Enderby Land
1
Greenland
1
Kamchatka
1
Mackenzie Delta
1
Subarctic
1
Yakutia
1
glaciers
1
ice core
1