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  • Arctic Mirage (Hillingar) - Geophysical Institute
    In the arctic mirage a distant object appears right way up but higher up than the actual location Though arctic and desert mirages seem to be quite different, they share a common fundamental cause It is that light rays passing from an object through air to an observer always refract (bend) in the direction of increasing air density
  • The Highest Mirage in North America - Geophysical Institute
    This type of arctic mirage differs from "inferior" mirages, those that occur in deserts or over hot road surfaces, because the air layers are reversed In a desert or on hot blacktop, heated air lies at the surface, covered by a layer of cooler air
  • Mirages - Geophysical Institute
    Though popular lore has it that mirages occur in deserts, Fairbanks has an unusual number It is quite common to look out across the Tanana Valley and see elevated lines of trees and rapidly changing square-topped images of the peaks in the Alaska Range to the south
  • Fata Morgana - Geophysical Institute
    The fate morgana mirage is one that can occur only where there are alternating warm and cold layers of air near the ground or water surface Instead of traveling straight through these layers, light is bent towards the colder, hence denser, air The result can be a rather complicated light path and a strange image of a distant object
  • Tanana Valley Mirages - Geophysical Institute
    Art Greenwelt of Fairbanks asks the question: "Why do peaks of the Alaska Range, when seen from Fairbanks during the winter, sometimes appear to be chopped off, flattened into mesas, or even floating in midair?"
  • The Parry Arc - Geophysical Institute
    Among reports of peculiar mirages or other strange phenomena observed in the Arctic is one described by P Berwick of Fairbanks In that instance several people at a DEW-Line site saw, on two different nights, what appeared to be the lights of a large city on the horizon Was this a mirage, the northern lights or what?
  • Pingos Pop Up in Alaskas North Country | Geophysical Institute
    Alaska Science Forum article has no image, a placeholder has taken its place Icon Attribution: Newspaper by Alexandria Eddings from the Noun Project
  • The Aleutians, 1942--Revisited - Geophysical Institute
    News of the war in the Falkland Islands must surely bring back memories to veterans of the struggle for the Aleutians in World War II




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