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Current Category » Agricultural Meteorology

Untitled Document

Non Variable and Variable Components

1. Non-variable components:

Some gases of the atmosphere remain constant at surface of globe up to the height of 80 to 88 km.  This is due to transportation of gases on continental* level, diffusion of gases, turbulent mixing and convection. 

These gases are called non-variable components. 
They are Non-variable components (permanent constituents)


Sr.No

Constituents

Symbol

Percentage by volume

1

Nitrogen

N2

78.084

2.

Oxygen

O2

20-946

3

Argon

Ar

0.934

4

Carbon dioxide

CO2

0.032

5

Neon

Ne

18.18x10-4

6

Helium

He

5.24x10-4

7

Crypt on

Kr

1.14x10-4

8.

Xenon

Xe

0.087x10-4

9.

Hydrogen

H2

0.5x10-4

10.

Methane

CH4

1.5x10-4

11.

Nitrous oxide

N2O

0.5 x 10-4

12

Radon

Rn

6 x 10-18

1. Variable components:

Some gases or components of the atmosphere ch anges with change with change in time, palce, season etc, and these components are called as variable component they are-

Variable components or constituents:

S.N.

Constituents

Symbol

Percentage by volume

1

Water vapour

H2O

<4

2.

Ozone

O3

<0.07x10-4

3.

Sulphur dioxide

SO2

<1x10-4

4.

Nitrogen dioxide

N02

<0.02x10-4

5.

Ammonia

NH3

1 race

6.

Carbon monoxide

CO

~0.2x10-4

7.

Dust (Salt2 Soil)

 

<10-3

8.

Water (liquid & solid)

 

 

 

Current Category » Agricultural Meteorology