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Thread: Albedo On Earth

  1. #1
    Join Date
    Jan 2004
    Posts
    567
    Hi Hi ppls
    According to the record of the book saids, The albedo point on Earth was 69% absorb and 31 % were reflect back to space... I was wondering if the sky has no H2O cloud at all, then what will be the albedo that being absorb now and the albedo that refelct back to space?

  2. #2
    Join Date
    Jul 2003
    Posts
    2,784
    I have been pondering what you are trying to ask in this question Tiny, so pardon me if I have answered it wrong.

    Albedo is a measure of the reflectiveness of an object.

    If I have read your question right, you are asking if there would be a change in the Earth's albedo between periods of cloudiness or no cloud. As the clouds are white and hang higher in the atmosphere, their presence would increase Earth's albedo.

    A good example of this is Venus. It is very bright in our night sky partly because of its high albedo--and this is derived from its cloud covered surface.

  3. #3
    Join Date
    Feb 2004
    Posts
    734
    If Venus has such a high albedo, why is it so hot?

    Cool, this is my 200th post!

  4. #4
    Join Date
    Nov 2003
    Posts
    508
    I guess it's because the heat get trap inside Venus's surface...

  5. #5
    Join Date
    Apr 2004
    Posts
    155
    exactly littlemes. The same thing that happens on earth happens on Venus. Basically the greenhouse effect. Sunlight comes is trapped in by reflecting off the cloud. Perpetually warming the surface replenishing the clouds.

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