Dear Andrew,
A holding pattern that does not result in overlapping contrails would
result in more reflected sunlight but depends on temp (altitude) and the
fuel consumption at that time (water vapor produced). The balance
between any reflected short wave light reflected and IR would need to be
evaluated.
Sincerely,
Oliver Wingenter
Andrew Lockley wrote:
Is it possible to alter the flightpaths of commercial aircraft to
ensure that their contrails make the right kind of cloud to alter the
radiative balance favourably?
A
2010/1/9 Veli Albert Kallio <[email protected]
<mailto:[email protected]>>
The British Army created a circular holding pattern to create an
immense artificial coil in the sky made of the military
aeroplane's contrail. This was then easy to distinguish and track
by satellites to see undisputed, how aeroplane emissions can be
made to turn clear skies to artificial cirrus covered clouds.
Link to the slide show:
http://news.bbc.co.uk/1/hi/sci/tech/8309629.stm
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