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Fata Morgana
(mirage) A Fata Morgana (Italian: [ˈfaːta morˈɡaːna]) is a complex form of superior mirage visible in a narrow band right above the horizon. The term Fata Morgana is the Italian translation of "Morgan the Fairy" (Morgan le Fay of Arthurian legend).
As is well known, atmospheric ducting is the explanation for certain optical mirages, and in particular the arctic illusion called "fata morgana" where distant ocean or surface ice, which is essentially flat, appears to the viewer in the form of vertical columns and spires, or "castles in the air". The Fata Morgana is briefly mentioned in the 1936 H. P. Lovecraft horror novel At the Mountains of Madness, in which the narrator states: "On many occasions the curious atmospheric effects enchanted me vastly; these including a strikingly vivid mirage—the first I had ever seen—in which distant bergs became the battlements of unimaginable cosmic castles." All the Navy weathermen at Detachment 'C' agree that the most startling weather phenomena they have encountered in Antarctica is 'Fata Morgana,' an optimal illusion that is caused by a temperature inversion over the ice and which makes everything look like a mirage and appear distorted or stretched.
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