Arctic Circle
Midnight sun's threshold
The Arctic Circle is an imaginary line of latitude at approximately 66.5° north, marking the boundary of the Arctic region.
North of this line, the sun remains above the horizon for at least one full day in summer (midnight sun) and below it for at least one full day in winter (polar night).
Few people live above the Arctic Circle.
Frigid treeless biome
- permafrostPerpetually frozen earth layer
- glacierSlow-moving ice mass
- icecapPermanent polar covering
- SiberiaRussia's eastern expanse
Greenland · Lapland · Nunavut · Svalbard · Alaska · taiga · latitude
Perpetually frozen earth layer
- subzeroBelow the freezing point
- blizzardViolent prolonged snowstorm
- windchillPerceived temperature drop
- frostbiteFreezing of body tissue
hypothermia · freezing · snowfall · iceberg · frost · freeze-thaw · whiteout · thermals
Tusked Arctic marine mammal
- sealAuthentication stamp or mark
- reindeerArctic deer species
- caribouNorth American arctic deer
- lemmingSmall arctic rodent
narwhal · beluga · puffin · ptarmigan · krill · wolverine · ermine
Arctic indigenous people
Traveling through unknown regions
- icebreakerTension-easing social activity
- dogsledAnimal-drawn snow vehicle
- snowmobileMotor vehicle for snow
- overwinteringEnduring the cold months
Of Earth's magnetic properties
- magnetosphereCelestial body's protective field
- ionosphereCharged upper atmospheric layer
- curtainsHanging fabric window covers
- skygazingWatching celestial bodies overhead
tundra
Frigid treeless biome
- permafrostPerpetually frozen earth layer
- glacierSlow-moving ice mass
- icecapPermanent polar covering
Siberia · Greenland · Lapland · Nunavut · Svalbard · Alaska · taiga · latitude
permafrost
Perpetually frozen earth layer
- subzeroBelow the freezing point
- blizzardViolent prolonged snowstorm
- windchillPerceived temperature drop
frostbite · hypothermia · freezing · snowfall · iceberg · frost · freeze-thaw · whiteout · thermals · insulation
walrus
Tusked Arctic marine mammal
lemming · narwhal · beluga · puffin · ptarmigan · krill · wolverine · ermine
Inuit
Arctic indigenous people
exploration
Traveling through unknown regions
- icebreakerTension-easing social activity
- dogsledAnimal-drawn snow vehicle
- snowmobileMotor vehicle for snow
geomagnetic
Of Earth's magnetic properties
- magnetosphereCelestial body's protective field
- ionosphereCharged upper atmospheric layer
- curtainsHanging fabric window covers
- NorwayOslo, Bergen, Trondheim, fjord, fjords
- ScandinaviaNorway, Sweden, Denmark, Finland, Iceland
- Arctic PlacesNorth Pole, Svalbard, Thule, Eureka, Baffin Island
- arctic special regionsNorth Pole, Greenland, Svalbard, Nunavut, sea ice
- Canadian ArcticNunavut, Northwest Territories, Yukon, Baffin Island, Yellowknife
- Nordic Terrainfjords, glacial valleys, glacial lakes, mountains, peaks
Arctic CircleAntarctic Circle
Southern polar latitude boundary
South Pole · Antarctica · Southern Ocean · Ross Ice Shelf · Tierra del Fuego
Arctic Circleequator
Midpoint circle of rotation
tropics · tropical zone · equatorial regions · Tropic of Cancer · Tropic of Capricorn
circle, arctic, circular, circling, circled, Arctic, circumference, subarctic, circumpolar