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How can you calculate density from : altitude temperature and absolute humidity

  1. May 10, 2007 #1
    How can you calculate density from : altitude temperature and absolute humidity
     
  2. jcsd
  3. May 10, 2007 #2

    FredGarvin

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    Science Advisor

    The easiest way is to use a standard atmospheric table like the one here:
    http://modelweb.gsfc.nasa.gov/atmos/us_standard.html [Broken]

    http://hypertextbook.com/facts/2000/RachelChu.shtml


    If you want to get down and dirty with density calculations, look around for NIST's publication NBSIR 77-1278 The Air Density Equation and the Transfer of the Mass Unit.
     
    Last edited by a moderator: May 2, 2017
  4. May 12, 2007 #3
    from humidity u can find due point

    due point and temp u can find pressure

    if the fluid is ideal u can find volume by PV=nRT

    if u know pressure and temp u can find spc. volume

    from spc.volume and volume u can find mass

    from mass and volume u can find density...
     
  5. May 12, 2007 #4

    FredGarvin

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    If you know specific volume, you know the density.
     
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