![]() ![]() The proportion reflected is not only determined by properties of the surface itself, but also by the spectral and angular distribution of solar radiation reaching the Earth's surface. ![]() Surface albedo is defined as the ratio of radiosity J e to the irradiance E e (flux per unit area) received by a surface. It is measured on a scale from 0 (corresponding to a black body that absorbs all incident radiation) to 1 (corresponding to a body that reflects all incident radiation). Īlbedo ( / æ l ˈ b iː d oʊ/ from Latin albedo 'whiteness') is the fraction of sunlight that is diffusely reflected by a body. Some areas reflecting close to 20 percent less light than a decade ago. For other uses, see Albedo (disambiguation).Īlbedo change in Greenland: The map shows the difference between the amount of sunlight Greenland reflected in the summer of 2011 versus the average percent it reflected between 2000 to 2006. ![]()
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