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Forumula pressure = f(height)

  1. Aug 27, 2006 #1
    Hello people,
    I know that normal athmosferic pressure on the sea level is 101325 Pa.
    However I need to know how pressure is changed with height. I know, for example, that on 200 m above sea level it will be smaller but how much I don't know.
    Can you suggest forumula? i think it can be approx. linear but don't know slope.
    Thanks for help.
     
  2. jcsd
  3. Aug 27, 2006 #2

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  4. Aug 28, 2006 #3
    Formula from the bureau of mines is
    Pamb = [(44331.5-Z)/4946.624]^1/0.190263
    This equation is valid upto 10 km height. P is in Pascals and Z is height above mean sea level in km.
     
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