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Parameter Tree:
EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > ALBEDO
Definition:
Albedo is the ratio of the radiation (radiant energy or luminous
energy) reflected by a surface to that incident on it. Snow and cloud
surfaces have a high albedo, because most of the energy of the visible
solar spectrum is reflected. Vegetation and ocean surfaces have low
albedo, because they absorb a large fraction of the energy. Clouds are the
chief cause of variations in the Earth's albedo. 
Reference:
Maunder, W.J. 1994. Dictionary of Global Climate Change, 2nd ed. Chapman and
Hall, NY. WMO, 1966. International Meteorological Vocabulary, WMO/OMM/BMO - No.
182 TP. 91, Switzerland.
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