By 1932 UTC, these contrails still exist. Also notice how the contrail labeled C is spreading. Notice also that these clouds are generating shadows. Since we know the position of the sun, we can use these shadows, to calculate the height of the clouds that cast them.
cimss.ssec.wisc.edu/wxwise/class/contrail.html cimss.ssec.wisc.edu/wxwise/class/contrail.html
Contrail clouds also reduce the terrestrial energy losses of the planet, resulting in a warming. Jet exhaust also plays a role in modifying the chemistry of the upper troposphere and lower stratosphere.
cimss.ssec.wisc.edu/wxwise/contrail.html cimss.ssec.wisc.edu/wxwise/contrail.html
Contrail - Wikipedia, the free encyclopedia
Source
Contrails (short for "condensation trails") or vapour trails are visible trails of condensed water vapour made by the exhaust of aircraft engines. As the hot exhaust gases cool in the surrounding a...
en.wikipedia.org/wiki/Contrail
The clouds are what make the sky look so interesting. To many, all clouds look the same - but as soon as one begins to study the vast number of possible cloud forms and varieties, one realizes that there is more to discover than there is time to observe! ... Contrail funnels...
www.weatherscapes.com/gallery.php?cat=clouds&subcat=con... www.weatherscapes.com/gallery.php?cat=clouds&subcat=contrails&expand=contrails
A contrail, also known as a condensation trail, is a cirrus-like trail of condensed water vapor often resembling the tail of a kite. Contrails are produced at high altitudes where extremely cold temperatures freeze water droplets in a matter of seconds before they can evaporate. ... billow clouds...
ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/cld/cldtyp/oth/cn... ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/cld/cldtyp/oth/cntrl.rxml
For example, SUCCESS (SUbsonic aircraft Contrail & Clouds Effects Special Study) is a NASA field program using scientifically instrumented aircraft and ground based measurements to investigate the effects of subsonic aircraft on contrails, cirrus clouds and atmospheric chemistry.
www.borderlands.com/contrails/contrail.htm www.borderlands.com/contrails/contrail.htm
Whether contrails cause a net cooling or a net warming, even whether their effect is something to worry about, remains unclear. But with air traffic expected to double or even triple by 2050, leading contrail researchers say the influence of these artificial clouds cannot be ignored.
www.pbs.org/wgbh/nova/sun/contrail.html www.pbs.org/wgbh/nova/sun/contrail.html
This photo was taken in April 1996, not far from an airport. The streaks of clouds follow the path of the jet that made them. The exhaust from a jet engine causes condensation, making the contrail.
www.windows.ucar.edu/earth/Atmosphere/clouds/contrail_i... www.windows.ucar.edu/earth/Atmosphere/clouds/contrail_image.html
Actually, weather conditions favorable for contrail formation are exactly the same as those preceding a storm front, and are the same conditions that cause natural clouds to form. Weather conditions do cause contrails, but contrails do not cause weather.
www.tetrahedron.org/articles/health_risks/Contrail_Cont... www.tetrahedron.org/articles/health_risks/Contrail_Controversy.html
Contrails are clouds of ice particles formed around the small particles (aerosols) which are in aircraft exhaust. When these persist after the passage of the plane they are of great interest to researchers. Under the right conditions, ... If the air is very dry, a contrail will not form behind the plane. If the air is...
asd-www.larc.nasa.gov/SCOOL/contrails.html asd-www.larc.nasa.gov/SCOOL/contrails.html