Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,914,677,360 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

Tropopause

   Also found in: Dictionary/thesaurus, Medical, Legal, Wikipedia 0.01 sec.
tropopause: see atmosphere atmosphere [Gr.,=sphere of air], the mixture of gases surrounding a celestial body with sufficient gravity to maintain it. Although some details about the atmospheres of other planets and satellites are known, only the earth's atmosphere has been well studied, the
..... Click the link for more information.
.
tropopause [′trōp·ə‚pȯz]
(meteorology)
The boundary between the troposphere and stratosphere, usually characterized by an abrupt change of lapse rate; the change is in the direction of increased atmospheric stability from regions below to regions above the tropopause; its height varies from 9 to 12 miles (15 to 20 kilometers) in the tropics to about 6 miles (10 kilometers) in polar regions.

Tropopause 

the boundary between the troposphere and the stratosphere. The thickness of the tropopause ranges from a few hundred meters to 2–3 km. In the tropopause the lapse rate decreases, and temperature inversions are frequently observed. The height of the upper boundary of the troposphere is usually taken as the height of the tropopause. The height of the tropopause depends on geographic latitude, and the tropopause is higher in summer than in winter. Moreover, the height of the tropopause also depends on cyclonic activity; that is, the tropopause is lower in cyclones and higher in anticyclones. Over certain regions the tropopause often breaks up and then reforms; in the subtropics, breaks in the tropopause are regularly observed as we move from temperate to tropical latitudes. These breaks are associated with powerful subtropical jet streams.



Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
Feedback
Mentioned in?  References in periodicals archive?   Encyclopedia browser?   Full browser?
No references found
 
2]) at the tropopause [the boundary between the troposphere, where most weather occurs, and the stratosphere, the next atmospheric layer above the troposphere] after allowing for stratospheric temperatures to readjust to radiative equilibrium, but with surface and tropospheric temperatures and state held fixed at the unperturbed values" (Forster et al.
According to the researchers, if very deep clouds, such as those in a tropical cyclone that can rise through the atmosphere at speeds of up to 40 miles per hour, can punch through the tropopause, they can deposit their ice in the warmer overlying stratosphere, where it then evaporates.
These gases in the tropopause layer of the atmosphere which is about 30,000 feet above the ground, contribute to global warming through their ability to reduce the radiation from the Earth and thereby result in global warming.
 
 
 
Encyclopedia
?

Terms of Use | Privacy policy | Feedback | Advertise with Us | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.