Describe the mechanism of heating of atmosphere.
Answers
Answer:
Conduction: the air gets heated by the ground, which is warm. Convection: hot air convects upward. Radiation: air absorbs sunlight.
Explanation:
Earth does not absorb all the heat that is radiated by the sun. The balance maintained between the incoming solar radiation absorbed by the earth and the heat that escapes from the earth into the space is known as the heat budget. Following is the heat budget of the earth:
Out of 100 units of heat that is radiated by the sun, 35 units of heat are reflected into the space by the layers of atmosphere.
14 units are absorbed by the Ozone layer.
Rest 51 units are received by the earth.
Out of 51 units, 34 units are absorbed by the earth, and sent back into the atmosphere.
Rest 17 units are radiated directly into the space by the earth.
The amount of solar energy which is received by the Sun is known as insolation. The Sun’s energy reaches the Earth as short waves. Out of total solar energy, 51% reaches the Earth. The Earth does not absorb all the heat of the Sun which strikes its surface. A part of Sun’s heat is radiated back into the atmosphere in form of long waves. The heat radiated by the earth in form of long waves is known as terrestrial radiation. The balance maintained between the incoming solar radiation absorbed by the earth and the heat that escapes from the Earth into the space is known as the heat budget. Following is an example of the heat budget of the earth:
Out of 100 units of heat that is radiated by the sun, 35 units of heat are reflected into the space by the layers of atmosphere.
Answer:
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