This picture shows the afternoon sky to the south from the "Camping 19" in Sopot, Poland 0n July 04,2010.
Any farmer looking at this picture will inevitabely mumble for himself , -"Hmmm... cirrus... feather clouds... looks like there is a storm comming up... some pretty heavy winds blowing up there... better prepare for the worst.
And a sailor would read the sky the same way, preparing for increasing and possible change in prevailing wind direction.
Feather clouds are mainly the picture of strong horizontal winds carrying off the upper part of far away cumulus clouds, and hence a fairly accurate warning about some heavy weather coming up.
However, the "feather" clouds on the picture are not stemming from the top of any cumulus, but from the exhaust trails from jet plains , which apart from healthy CO2, also contains water vapour. Gaseous water which, depending on atmospheric pressure and temperature, will condensate, remain in gaseous form or freeze to tiny ice particles (Each liter of fuel burned, will produce about one liter of water.)
But, there might of course also be elements addet to the jet fuel, causing other molecules to form than mainly CO2 and H2O. Who knows? Maybe some smartass have invented a way to get rid of poisonous waste by adding small amounts of it to the jet fuel? (Do you know what the additives are in the fuel you run your car on? The stuff that "BP" says will give you extra power and or milage from the gasoline you tank up with? Hmmm?)
However, given the right conditions, there is no reason why the water vapour in the jet stream should not produce clouds. And, with a strong horizontal (or turbulent) wind at the altitude where the jet-produced clouds are formed, cirrus clouds will of course be produced. No added chemicals needed for that!
So?... are the strange feathered, fuzzy and blurry skies we observe, simply a plain natural phenomena? Something which have become more "visible" through a more frequent plain traffic?
Hmm... well, one thing is for sure though. As can be seen, there are strong winds up there. And, I do know for a fact, that the wind patterns and strength have changed a lot in the northern hemisphere, since the freon gases started causing a hole in the ozon layer above the south pole. (More about this later, so stay tuned! :-)
Any farmer looking at this picture will inevitabely mumble for himself , -"Hmmm... cirrus... feather clouds... looks like there is a storm comming up... some pretty heavy winds blowing up there... better prepare for the worst.
And a sailor would read the sky the same way, preparing for increasing and possible change in prevailing wind direction.
Feather clouds are mainly the picture of strong horizontal winds carrying off the upper part of far away cumulus clouds, and hence a fairly accurate warning about some heavy weather coming up.
However, the "feather" clouds on the picture are not stemming from the top of any cumulus, but from the exhaust trails from jet plains , which apart from healthy CO2, also contains water vapour. Gaseous water which, depending on atmospheric pressure and temperature, will condensate, remain in gaseous form or freeze to tiny ice particles (Each liter of fuel burned, will produce about one liter of water.)
But, there might of course also be elements addet to the jet fuel, causing other molecules to form than mainly CO2 and H2O. Who knows? Maybe some smartass have invented a way to get rid of poisonous waste by adding small amounts of it to the jet fuel? (Do you know what the additives are in the fuel you run your car on? The stuff that "BP" says will give you extra power and or milage from the gasoline you tank up with? Hmmm?)
However, given the right conditions, there is no reason why the water vapour in the jet stream should not produce clouds. And, with a strong horizontal (or turbulent) wind at the altitude where the jet-produced clouds are formed, cirrus clouds will of course be produced. No added chemicals needed for that!
So?... are the strange feathered, fuzzy and blurry skies we observe, simply a plain natural phenomena? Something which have become more "visible" through a more frequent plain traffic?
Hmm... well, one thing is for sure though. As can be seen, there are strong winds up there. And, I do know for a fact, that the wind patterns and strength have changed a lot in the northern hemisphere, since the freon gases started causing a hole in the ozon layer above the south pole. (More about this later, so stay tuned! :-)
Sopot, Poland, July 04, 2010, 5:45:46 PM