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530
2
550
2
Alaska
2
Alert
2
Arctic
2
Barrow
2
Canada
2
Ellesmere Island
2
Greenland
2
Nunavut
2
Ny-Alesund
2
Queen Elizabeth Islands
2
Spitsbergen
2
Svalbard
2
Svalbard and Jan Mayen
2
United States
2
annual variation
2
concentration (composition)
2
filter
2
ground-based measurement
2
ice
2
nucleation
2
particulate matter
2
Argos satellite tracking
1
Vulpes lagopus
1
blue morph
1
coastal fox
1
envir
1
geo
1
large-scale movements
1
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