NDLI: Contrails. appendix 1, part 1

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Contrails. appendix 1, part 1

Content Provider	NASA Technical Reports Server (NTRS)
Author	Minnis, Patrick
Copyright Year	2003
Description	One of the most visible signs of human influence on the atmosphere is the condensation trail, or contrail, formed behind high altitude aircraft. This anthropogenic cirrus cloud can occur as a single line or in imposing geometrical formations as clusters of criss-crossing or parallel lines, Like natural cirrus clouds, contrails are composed of ice crystals and can produce the same dramatic optical displays, especially around sunrise or sunset. Persistent contrails also play a role in climate because they reflect sunlight and trap infrared radiation just like their naturally formed cousins. Thus, the presence of a contrail cluster in an otherwise clear sky can diminish the amount of solar energy reaching the surface during the daytime and increase the amount of infrared radiation absorbed in the atmosphere at all times of day. These opposing effects can simultaneously cool the surface and warm the air within the troposphere. Currently, the overall impact appears to be a warming effect, but research is continuing to unravel the role of this phenomenon in climate change.
File Size	7071450
Page Count	8
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20070036014
Archival Resource Key	ark:/13960/t86h9hn1n
Language	English
Publisher Date	2003-01-01
Access Restriction	Open
Subject Keyword	Meteorology And Climatology Contrails Climate Change Climatology Man Environment Interactions Cirrus Clouds Troposphere Environment Effects Ice Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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