For Description plz visit on https://nikitanirmalgeoinformation.blogspot.com/2018/10/atmosphere-of-earth.html
Gases |
· Nitrogen (78%), Oxygen (21% ),argon (0.93%) percent carbon dioxide (0.03%), neon Helium, Ozone, hydrogen, krypton methane etc. |
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Water Vapours |
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Structure of atmosphere |
· 4 layer
·
Troposphere,
·
Stratosphere,
·
Mesosphere and
· Thermosphere(Ionosphere and exosphere)
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Troposphere |
· Lower most layer
· Height 60 km above the equator and 6 km above the pole.
· Temperature decrease with increasing height.
· The rate of decrease of temperature is called normal lapse
rate.
· The upper limit of troposphere is called tropopause.
· Troposphere means zone
of mixing.
· Tropopause means mixing stop.
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Stratosphere |
· Height 25 30 km.
·
temperature increase with increasing height.
·
Circulation of feable wind.
·
Cirrus Cloud in the lower stratosphere.
·
Concentration of ozone layer.
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Mesosphere |
· Extends between 50 km and 80 km.
·
Temperature again decreases with increasing height.
·
Temperature becomes minus 80 degree centigrade at 80 kilometer.
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Thermosphere |
· 80 kilometer to 640 km.
·
divided into two layer,
·
Ionosphere and
·
Exosphere
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Ionosphere |
· Extend from 80 kilometer to 640km.
·
D layer ,
·
E layer known as kennelly-heaviside layer,
·
E, E1 and E2,
·
F layer: F1 and F2,
·
G layer .
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Exosphere |
· Upper most layer of atmosphere 640km.
·
Temperature 5568 degree Celsius.
·
Density becomes extremely low.
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