Re: Barometric Pressure vs Altitude

[Bob Giansiracusa <bobgian@radonc.washington.edu>]

> Date: Wed, 30 Jun 1999 13:06:53 -0500 (CDT)
> From: "Migliore, Charles W" <Charles.W.Migliore@nspco.com>
> 
> Anyone know a quick thumbrule about barometric pressure vs altitiude, or
> where to find one? 
> 
> Charles Migliore RRPT
> charles.w.migliore@nspco.com

I believe barometric pressure is a negative exponential function of distance
from center of earth.  Ie:

                                              exp ( - altitude )
   Pressure = (Pressure at sea level) *  ------------------------------
                                           exp ( - alt-at-sea-level )

where "exp" is e to the power ( ... )
and "altitude" and "alt-at-sea-level" are the distances to the point in
question and to sea level from the center of the earth.

Bob
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