Open Polar Keyword
Sea ice
19
Ice
13
permafrost
13
Arctic
7
Alaska
4
Arctic Ocean
4
Airborne Topographic Mapper
1
Archeological Survey
1
Archipelago
1
Arctic Basin
1
Climate change
1
Fram Strait
1
Iceberg*
1
Kodiak
1
Labrador Sea
1
Lincoln Sea
1
National Snow and Ice Data Center
1
North Atlantic
1
Northwest passage
1
Prince Edward Island
1
South Atlantic Ocean
1
lena river
1