What Determines Insolation

Solar insolation is affected by factors such as atmosphere, angle of the sun and distance. The thinner the atmosphere in which the sun is passing through, the more the insolation. Insolation is also at its highest when the sun is directly overhead in an area.

What factors affect insolation?

The following factors affect the distribution of insolation: Duration of day and night in different latitude. The angle of incidence of sun rays. Water vapor in the atmosphere. Dust particles in the atmosphere.

What causes insolation differences?

The amount of sunlight that reaches the surface varies greatly with latitude, due to the reinforcing effects of zenith angle and atmospheric attenuation. These variations in insolation result in huge ranges in temperature between the warm, tropical regions of the world and the cold, polar regions.

James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.

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