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Colour of the ocean

  1. Nov 2, 2003 #1
    why does the waters of the unpolluted oceans and seas have their own different natural colour?
    is it jus a mere reflection of the sky??
  2. jcsd
  3. Nov 3, 2003 #2
    Yes. That's why it's blue on a clear day and gray on a cloudy day. You can also get brown nears estuaries, blue green in shallow areas with sandy bottoms, red in algae blooms, etc.
  4. Nov 4, 2003 #3


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    No, but sky reflection is part of the reason that you see oceans as blue.

    Apparently, water tends to absorb more red light...
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