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  2. Climate of the Arctic - Wikipedia

    en.wikipedia.org/wiki/Climate_of_the_Arctic

    A map of the Arctic. The red line is the 10 °C isotherm in July, commonly used to define the Arctic region; also shown is the Arctic Circle. The white area shows the average minimum extent of sea ice in summer as of 1975. [1] The climate of the Arctic is characterized by long, cold winters

  3. Polar climate - Wikipedia

    en.wikipedia.org/wiki/Polar_climate

    Some parts of the Arctic are covered by ice (sea ice, glacial ice, or snow) year-round, especially at the most poleward parts; and nearly all parts of the Arctic experience long periods with some form of ice or snow on the surface. Average January temperatures range from about −40 to 0 °C (−40 to 32 °F), and winter temperatures can drop ...

  4. Arctic Circle - Wikipedia

    en.wikipedia.org/wiki/Arctic_Circle

    Relationship of Earth's axial tilt (ε) to the tropical and polar circles. The Arctic Circle is the southernmost latitude in the Northern Hemisphere at which the centre of the Sun can remain continuously above or below the horizon for twenty-four hours; as a result, at least once each year at any location within the Arctic Circle the centre of the Sun is visible at local midnight, and at least ...

  5. Cold blob - Wikipedia

    en.wikipedia.org/wiki/Cold_blob

    The cold blob in the North Atlantic (also called the North Atlantic warming hole [2] [3]) describes a cold temperature anomaly of ocean surface waters, affecting the Atlantic Meridional Overturning Circulation (AMOC) which is part of the thermohaline circulation, possibly related to global warming-induced melting of the Greenland ice sheet.

  6. Arctic haze - Wikipedia

    en.wikipedia.org/wiki/Arctic_haze

    Arctic haze is the phenomenon of a visible reddish-brown springtime haze in the atmosphere at high latitudes in the Arctic due to anthropogenic [1] air pollution.A major distinguishing factor of Arctic haze is the ability of its chemical ingredients to persist in the atmosphere for significantly longer than other pollutants.

  7. Polar vortex to unleash dangerous cold blast in northeastern US

    www.aol.com/weather/quick-burst-arctic-air-bring...

    A quick but intense blast of Arctic air will barrel into the Northeast later this week to deliver quite a cold shock to the Northeast and neighboring Canada, AccuWeather meteorologists warn. The ...

  8. Extreme cold weather clothing - Wikipedia

    en.wikipedia.org/wiki/Extreme_Cold_Weather_Clothing

    The original cold weather clothing was made of furs. The fibers of the fur trapped insulating air, lanolin on the fur repelled water. Knitted wool is an effective insulator when dry, but ineffective when wet. Goose down is the lightest insulator, and still used today. Its quality, called loft is a measure of its low density. It is ineffective ...

  9. Continental climate - Wikipedia

    en.wikipedia.org/wiki/Continental_climate

    Dwa = Monsoon-influenced hot-summer humid continental climate; coldest month averaging below 0 °C (32 °F) (or −3 °C (27 °F)), at least one month's average temperature above 22 °C (71.6 °F), and at least four months averaging above 10 °C (50 °F). At least ten times as much rain in the wettest month of summer as in the driest month of ...