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![]() Verone |
Posted - 2005.09.01 01:21:00 -
[1] Edited by: Verone on 01/09/2005 01:23:08 I think it's in bad taste toward the people who've lost relatives to the hurricane in the southern US to try and claim that any organisation in particuar is involved with it. A significant portion of the apparent strange looking formations in clouds have already been explained logically, with the aid of the terrain that the air is flowing over. Most of the rest can be clearly defined as Contrails, or the remanants of them at least. Streamers of cloud you can see behind a passenger liner or something similar, flying in clear, cold, and humid air. It forms when the water vapor created by the combustion of fuel in the airplane engines condenses. When the ambient humidity of the air around the plane is high, the resulting ice-crystal plume that trails behind it can last for a few hours. it can get distorted, and sometimes it spreads outwards, kind of flat to form a layer of cirrus cloud. This can form the grid like patterns you've seen in some of the photos if the air stays very humid, and the various areas of cirrus cloud are allowed to form. it happens as well with swept wing aircraft. these produce wing tip vortices caused by the sliding stream of compressed at the tip of each wing. That air expands and cools off generating a thin layer of ice particles. these only appear as the thin lines that come off the ends of the wings, but can contribute to these types of formations as well. It's not uncommon to see stuff like this, i live right on the east coast of england, about 60 miles south east of Newcastle International Airport, when it's hot in the summer, as a result the planes are at their defined altitude for cruising, and the air is very humid from a lot of surface evaporation from the north sea, it's a pretty common thing to see this over the area that i live in. No explination for that wierd vortex thingy in the vid though... that's just wierd SniggleVision |
Verone Veto Corp |
Posted - 2005.09.01 01:21:00 -
[2] Edited by: Verone on 01/09/2005 01:23:08 I think it's in bad taste toward the people who've lost relatives to the hurricane in the southern US to try and claim that any organisation in particuar is involved with it. A significant portion of the apparent strange looking formations in clouds have already been explained logically, with the aid of the terrain that the air is flowing over. Most of the rest can be clearly defined as Contrails, or the remanants of them at least. Streamers of cloud you can see behind a passenger liner or something similar, flying in clear, cold, and humid air. It forms when the water vapor created by the combustion of fuel in the airplane engines condenses. When the ambient humidity of the air around the plane is high, the resulting ice-crystal plume that trails behind it can last for a few hours. it can get distorted, and sometimes it spreads outwards, kind of flat to form a layer of cirrus cloud. This can form the grid like patterns you've seen in some of the photos if the air stays very humid, and the various areas of cirrus cloud are allowed to form. it happens as well with swept wing aircraft. these produce wing tip vortices caused by the sliding stream of compressed at the tip of each wing. That air expands and cools off generating a thin layer of ice particles. these only appear as the thin lines that come off the ends of the wings, but can contribute to these types of formations as well. It's not uncommon to see stuff like this, i live right on the east coast of england, about 60 miles south east of Newcastle International Airport, when it's hot in the summer, as a result the planes are at their defined altitude for cruising, and the air is very humid from a lot of surface evaporation from the north sea, it's a pretty common thing to see this over the area that i live in. No explination for that wierd vortex thingy in the vid though... that's just wierd >>> THE BEAUTY OF NEW EDEN <<< |
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