Dear Carter, Many thanks for these two references. I found the second one particularly instructive, and I thoroughly enjoyed the consistent use of SI units throughout.
Thanks again. Cheers, Pat Naughtin LCAMS Geelong, Australia -- on 2004-04-22 08.37, Carter, Baron at [EMAIL PROTECTED] wrote: > Do these help? > > http://nssdc.gsfc.nasa.gov/space/model/atmos/us_standard.html > > The ICAO standard atmosphere for the continent of North America, based on > summer and winter averages at latitude 40� assumes the following conditions: > > 1. The air is a perfectly dry gas. > > 2. A mean sea level pressure of 29.92 inches of mercury. > > 3. A mean sea level temperature of 15�C. > > 4. The rate of decrease of temperature with height is 1.98�C per 1000 feet. > > http://history.nasa.gov/SP-367/chapt2.htm > > > > > > -----Original Message----- > From: Pat Naughtin [mailto:[EMAIL PROTECTED] > Sent: Wednesday, April 21, 2004 15:45 > To: U.S. Metric Association > Subject: [USMA:29598] Re: Air pressure history > > > Dear Mike, > > No, I had no response. > > As you can see, I have reposted this to the USMA list. Maybe someone there > can help this time. > > Cheers, > > Pat Naughtin LCAMS > Geelong, Australia
