Question
Define insolation and discuss the factors affecting insolation. Discuss the concept of heat
balance between the earth and atmosphere.
Answer :
Word Count : 786
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Skip in 10
Insolation, or incoming solar radiation, is the amount of solar energy received by the Earth from the Sun. It is the primary source of energy for all atmospheric processes, weather phenomena, climate systems, and the maintenance of life on Earth. Insolation consists mainly of shortwave radiation, including visible light, ultraviolet rays, and a small proportion of infrared radiation. The amount of insolation received at any place and time is not uniform but varies due to several geographical and astronomical factors. These variations are responsible for differences in temperature, pressure, winds, precipitation, and climatic conditions across the globe. One of the most important factors affecting insolation is the angle of incidence of the Sun’s rays. When the Sun’s rays strike the Earth vertically or nearly vertically, they are concentrated over a smaller area, resulting in greater heating. On the other hand, oblique rays spread the same amount of energy over a larger surface and pass through a thicker
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