![]() This effect is increased when the particular image is magnified using telescope lens or a telescope. A blurred simmering effect is subsequently created which influences the capability to resolve objects. ![]() Convection contributes to the variation of the air's temperature while the variation between the heated air at the road's surface and the cool air above results in a gradient in the air's refractive index. This phenomenon, also called the heat shimmer, can be seen by viewing objects through the exhaust gases expelled by jet engines or across the heated asphalt. Heat haze is a kind of inferior mirage observed when objects are viewed through hot air. The IJsselmeer and Markermeer lakes are some of the water bodies where inferior mirages are common. Inferior mirages can also occur over lakes or oceans by virtue of them being extensive and flat. The fake water or hot-road mirage is a common example of this type of mirage. Several temperature layers can cause some mirages to mix creating double images. The image will subsequently be distorted accordingly, and it can be horizontally or vertically extended or vibrating. It is characteristic of hot air to rise and cooler air, on the other hand, to descend which causes the layers to mix and turbulence to emerge. The image is normally upside down making it seem like the sky image is a water puddle serving as a mirror. Rays traveling from the top of the object will thus reach lower than the rays from the bottom. The light rays that originate from a distant object travel through almost the same air layers and they are also bent over nearly the same amount. The mirage leads the observer into seeing a bright and bluish area on land in the distance. The object, in this case, is the blue sky or another distant object in the same direction. ![]() The mirage is termed as inferior since it lies under the real object. The inferior mirage commonly occurs in the desert, and it appears as a water body in a distance. A mirage can be caught on camera since it is a real optical phenomenon. The term's origin lies in the French word mirage and the Latin mirari which translates to “to wonder at” or “to look at.” Mirages fall either into the superior, inferior or “Fata Morgana” categories. To is the property of their respective owners, and Athropolis is not responsible for their content.The optical phenomenon called mirage occurs naturally, and it is as a result of the bending of light rays to create a displaced image of either distant objects or the sky. The content of web sites that this site has links (2) Click button for to search this web siteĬopyright © 2005 Athropolis Productions Limited. (1) Click the button for Web (below) to search the World Wide Web GUIDE TO ARCTIC SUNRISE & SUNSET: How much sunlight or darkness is there in the Arctic on each day of the year? Not only was an opportunity missed, but the Admiralty wasn't very happy with Ross - especially Crocker, who had imaginary mountains named after him! The Admiralty wouldn't give Johnny another ship, and he had to find private funding for his next expedition.Ĭlick pictures for more information and credits.ĭICTIONARY: Just "double-click" any unlinked word on this page for the definition from Merriam-Webster's Student Electronic Dictionary at Word Central.ĪRCTIC LIBRARY & GLOSSARY: Check this section for an index of the rest of the things you really need to know about the Arctic.ĪRCTIC MAPS & WEATHER REPORTS: Maps of the Northwest Passage, explorers' routes, iceberg sources, Nunavut, the Arctic by treeline, temperature.ĪRCTIC LINKS: Even more information! Links to sites related to the Arctic and "Iceberg: the Story of the Throps and the Squallhoots". William Edward Parry sailed through those very "mountains" the following year. This was unfortunate, because Lancaster Sound is indeed a route to the Northwest Passage. He decided he could go no further and named the range the Crocker Mountains, after the First Secretary of the Admiralty. In 1818, while seeking the Northwest Passage, British explorer John Ross sailed into Lancaster Sound but saw mountains blocking his way. Mirages can take looming, towering, or inverted forms, depending on the density structure of the air, and sometimes, that can be downright deceiving. This is due to the downward refraction (bending) of light waves as they go through the cold, dense air that is close to the ground. The "arctic" or "superior" mirage occurs when an image of an object appears above the actual object. Superior Mirage Athropolis HOME | Maps | Arctic Links | Arctic Libraryįrom our library of things you should know about the Arctic
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