astronomy albedoexplain the term

3 Answers

trophyhunter1's profile pic

trophyhunter1 | College Teacher | (Level 1) Educator Emeritus

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Due to the fact that albedo is so high in the Polar regions, a great deal of sunlight gets reflected and this contributes to the cold temperatures. In areas which contain dark surfaces, such as roads made of asphalt, much of the sunlight is absorbed and converted to heat energy. Many surfaces can reflect sunlight including clouds, water, ice, soil, roads. Each has a different albedo however.

pohnpei397's profile pic

pohnpei397 | College Teacher | (Level 3) Distinguished Educator

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Albedo is the amount of sunlight that is reflected by a given surface.  It is measured on a scale of 0 to 1 with 0 being no reflection at all and 1 being 100% reflection.  So, for example, a snow field has a higher albedo than a jungle does because it reflects more of the sunlight that hits it.

giorgiana1976's profile pic

giorgiana1976 | College Teacher | (Level 3) Valedictorian

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When we are talking about the albedo of an object we are reffering to how much light the object reflects.

For instance, a mirror, that represents a perfect reflector, would have an albedo of 100.

We also know that the Earth has an albedo of 36 and the Moon has an albedo of 7.