The troposphere is the lowest portion of Earth's atmosphere. It contains approximately 80% of the atmosphere's mass and 99% of its water vapor and aerosols. The average depth of the troposphere is approximately 17 km (11 mi) in the middle latitudes. It is deeper in the tropics, up to 20 km (12 mi), and shallower near the polar regions, at 7 km (4.3 mi) in summer, and indistinct in winter. The lowest part of the troposphere, where friction with the Earth's surface influences air flow, is the planetary boundary layer. This layer is typically a few hundred meters to 2 km (1.2 mi) deep depending on the landform and time of day. The border between the troposphere and stratosphere, called the tropopause, is a temperature inversion.
The word troposphere derives from the Greek: tropos for "turning" or "mixing," reflecting the fact that turbulent mixing plays an important role in the troposphere's structure and behavior. Most of the phenomena we associate with day-to-day weather occur in the troposphere.
Major Topics
Categories
Access Tutorials
Access00-Intro
Access01
Access02
Access03
Access04
Access05
Access06
Access07
Acids
Astronomy
Atmosphere
Atoms
Baycon Group
Bikes
Biology
Biosphere
Botany
Business
Buzzle
C/C++ Tutorials
C/C++00-Intro
C/C++01
C/C++02
C/C++03
C/C++04
C/C++05
C/C++06
C/C++07
C/C++08
C/C++09
C/C++10
C/C++11
C/C++12
C/C++13
C/C++14
C/C++15
C/C++16
Celebrities
Chemistry
Comets
Commerce
Computer
Computing
Continent
Cosmology
Diatomic molecules
Durga
Durga Puja
Earth
Ecology
Environmental Science
Excel Tutorials
Excel00-Intro
Excel01
Excel02
Excel03
Excel04
Exosphere
Festivals
Flash8 Tutorials
Flash800-Intro
Flash801
Flash802
Flash803
Flash804
Flash805
Flash806
Flash807
Flash808
Flash809
Flower
Games
Geography
Geology
Heat
Hinduism
History
Hydrosphere
Lithosphere
Magnets
Measures
Mesosphere
Metals
Mixture
Molecule
Motorcycles
MS-Access
MS-Excel
MS-Office
MS-Powerpoint
MS-Word
Multimedia
Non-metals
Ocean
Operating System
Ozone
Ozone Layer
Photosynthesis
Physics
Plants
Powerpoint Tutorials
Powerpoint00-Intro
Powerpoint01
Powerpoint02
Powerpoint03
Religion
Roots
Science
Scientists
Solar System
Sport
Stratosphere
Thermos Flask
Thermosphere
Transpiration
Troposphere
Tutorials
Unicellular Organisms
Units of Measuement
Universe
Vacuum
Vehicles
Video Uploads
Wikipedia
Windows
WindowsXP00-Intro
WindowsXP01
WindowsXP02
WindowsXP03
WindowsXP04
WindowsXP05
Word Tutorials
Word00-Intro
Word01
Word02
Word03
Word04
Word05
Word06
Word07
Wrestlemania
Wrestling
WWE
WWE Raw
WWE smackdown
Zoology
Followers
Search This Blog
13 Jan 2012
Defination of troposphere.
Categories:
Atmosphere,
Chemistry,
Geography,
Science,
Troposphere,
Wikipedia