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Contents contributed and discussions participated by zacmah

zacmah

Albedo - 0 views

  • When an object reflects most of the light that hits it, it looks bright and it has a high albedo.
    • zacmah
       
      snow has these qualities.
  • When an object absorbs most of the light that hits it, it looks dark.
    • zacmah
       
      water (melting snow) has these qualities
zacmah

Albedo - Wikipedia, the free encyclopedia - 0 views

  • Albedos of typical materials in visible light range from up to 90% for fresh snow, to about 4% for charcoal, one of the darkest substances.
    • zacmah
       
      ocean absorbs heat; when ice caps melt they increase the ocean's volume and warm the Earth.
  • a distance, the ocean surface has a low albedo, as do most forests,
  • ...2 more annotations...
  • The classic example of albedo effect is the snow-temperature feedback. If a snow covered area warms and the snow melts, the albedo decreases, more sunlight is absorbed, and the temperature tends to increase.
    • zacmah
       
      happening in the Arctic
  • Human activities have changed the albedo
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