Atmospheric layers
Thermosphere
Mesosphere
Troposphere
Stratosphere
75% of the air mass
100mb=0.1bar
Air movement : Vertical
Thickness 13km
99% of water vapour
First layer
Disturbed layer
Temperature = -60 degree Celsius
Weather changes (turbulences)
It organizes the Earth's temperature
Pressure =1mb
Air movement : Horizontal
0.001 bar
Thickness = 37 kilometres
Temperature=0⁰c Because it has ozone gas (O³)
Most layer pilots prefer to fly in
Ozone gas extends from 20km to 40km height above sea level so, it called the Ozonic atmospheric envelope
Second layer
Thicknes = 35 kilometres
The atmospheric pressure in this layer decreases as we go up,until it becomes 0.01mb at its top
Temperature : -90c
Importance : it protects the planet earth from celestial rocky masses (meteors) that enter the atmosphere
Third layer
Mesosphere layer is much vacuumed because it contains limited quantities of helium and hydrogen gases only
Mesosphere is the middle layer because meso means middle
Temperature: 1200 c
Hottest layer
Thickness:590 kilometers
Fourth layer
Ionosphere layer 🖊
Exosphere layer
click to edit
Thickness=700km
It is important in wireless communication because it reflects radio waves transmitted by radio stations and communication centres
Van Allen belts are two magnetic belts surrounding ionoshere
Van Allen belts