Atmosphere Earth’s albedo
AtmosphereEarth’s albedo “Describe and explain the energy exchanges that result in the Earth’s surface receiving only 56% of the solar energy which reaches the outer atmosphere”.
AtmosphereEarth’s albedo The earth’s surface does not receive all of the insolation that reaches the outer atmosphere. Some of the light is either reflected back before it can heat the atmosphere, while some is absorbed. Incoming Solar energy 100 CLOUDS 20 2 GAS & DUST % is reflected by highly reflective clouds. 6% is reflected by atmospheric gases and dust. 2% is absorbed by clouds. 16% is absorbed by water vapour, gases and, particularly, dust due to darker, absorbing colour. This results in 44% of insolation never reaching the earth’s surface.
AtmosphereEarth’s albedo The earth’s surface does not receive all of the insolation that reaches the outer atmosphere. Some of the light is either reflected back before it can heat the atmosphere, while some it absorbed. Incoming Solar energy reaching the surface 56 Of the 56% which does reach the surface, 50% is absorbed by the surface (land and vegetation) and 6% is reflected (water, deserts and glaciers). The 32% lost by reflection is called the earth’s albedo.
AtmosphereEarth’s albedo
AtmosphereEarth’s albedo 2006
AtmosphereEarth’s albedo 1999
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