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Note 44.326 MOUNT-L 326 of 517 CUPIDO::STRITAR "Andrej Stritar,IJS,(61)-371-321" 36 lines 31-JAN-1994 08:30 CUPIDO::STRITAR "Andrej Stritar,IJS,(61)-371-321" 36 lines 31-JAN-1994 08:30 -------------------------------------------------------------------------------- From: STENAR::STENAR::MRGATE::"X400::1=de::2=d400::3=tr::5=edu::4=metu::4=cc::4=vm::6=MOUNT-L" 30-JA To: CUPIDO::STRITAR CC: Subj: Re: Elevation above sea level From: NAME: Mountaineering Discussion List MOUNT-L FUNC: edu <6=MOUNT-L@4=VM@4=CC@4=METU@5=EDU@3=TR@2=D400@1=DE@X400@STENAR> To: NAME: Multiple Recipients of FUNC: edu <6=MOUNT-L@4=VM@4=CC@4=METU@5=EDU@3=TR@2=D400@1=DE@X400@STENAR> RFC-822-HEADERS: Comments: To: MOUNT-L@vm.cc.metu.edu.tr Date: 30-Jan-1994 Posted-date: 30-Jan-1994 > The question is what does "Elevation above sea level" mean? Let us make the question even more complicated. Since the earth is not a sphere, it's more like a slightly pear shaped ellipsoid. This implies that even if the oceans mean sea level are the same, the actual distance to the center or the earth is not the same. Of course, even the "center" needs a good definition too. Also along the same lines, the air pressure gradiant isn't the same for polar vs equatorial air. So the average pressure at the same measured distance above sea level isn't the same for Denali as Cotopaxi. I have found accurate tables for standard air pressure at 100 foot intervals to 300,000 feet, but I have found one stating the difference from the poles to the equator. Anyone know how much variation there is? Willie Hunt
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