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From: userDHAL@mts.ucs.UAlberta.CA (David Halliwell)
Newsgroups: comp.binaries.ibm.pc.d
Subject: Re: Unusual program
Message-ID: <RN.1311@mts.ucs.UAlberta.CA>
Date: 12 Jun 91 21:28:06 GMT
References: <1238@ocsmd.com>
Organization: MTS Univ of Alberta
Lines: 36

In article <1238@ocsmd.com>, glenn@zeus.ocs.com (Glenn Ford) writes:
>I am looking for a program (or algorithm, to write my own if need be)
>that, given current time of day, latitude and longitude, will calculate
>the suns current position.  Any program or existing algorithm for this??
>If there is a more proper news group, please let me know..
> 
> 
>--
    
    Joseph J. Michalsky (1988) "The Astronomical Almanac's Algorithm
for Approximate Solar Position (1950-2050)", SOLAR ENERGY 40, 227-235.
   
    There was an errata published for the article, mentioning that
the formulae in the appendix have errors (although they appear
correctly in the body of the text).
   
    Any decent climatolgy text provides a number of the formulae that
you want. Two that might be easily found are
  
    Sellers, W.D. (1965) PHYSICAL CLIMATOLOGY
  
and
   
    Oke, T. R. (1987) BOUNDARY LAYER CLIMATES (*second edition*)
   
   
   I have written a couple of Pascal programs to do some of this stuff:
contact me at userdhal@mts.ucs.ualberta.ca if you want them.
   
  
   ... and finally, direct followups to sci.geo.meteorology!
  
  
Dave Halliwell
Dept. of Geography
University of Alberta