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Subject:
Re: Solar Radiation
From:
vasiraju murthy <[log in to unmask]>
Reply To:
vasiraju murthy <[log in to unmask]>
Date:
Thu, 18 Sep 2008 18:23:15 +0530
Content-Type:
text/plain
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Dear Jordon,
 
Regards and best wishes,
 
If you are using solar radiation data for estimating crop performance/ yield prediction/ energy balance( Ground heat flux, sensible heat flux, latent heat flux and net radiation) you may please consider   "Global Horizontal Radiation". The Extraterrestrial Horizontal Radiation,Extraterrestrial Direct Normal Radiation and Diffuse Horizontal Radiation have NO significance in this direction.
 
I may of further help if you explicitly convey me the out put that you expect by using solar radiation as INPUT.
 
Sincerely,
 
Dr.V.Radha Krishna Murthy Ph.D, Professor, Office of the Dean Post Graduate Studies,Administrative Office,ANGR Agricultural University,Rajendranagar,   Hyderabad, Andhra Pradesh, India, PIN 500 030.   99481 40687 (mobile)and office telephone numbers + 91 40 24015226 and +9140 24015011 Extn: 458  
> Date: Wed, 17 Sep 2008 16:18:52 -0400> From: [log in to unmask]> Subject: Solar Radiation> To: [log in to unmask]> > Dear DSSAT Members,> > I have access to daily solar radiation data but there are five> different types of radiation listed. I was wondering if anyone knows> which type is appropriate for DSSAT. The options are listed below> with a description. Any information would be great.> > 1.) Extraterrestrial Horizontal Radiation -- Amount of solar radiation> in Wh/m2 received on a horizontal surface at the top of the atmosphere> 2.) Extraterrestrial Direct Normal Radiation -- Amount of solar> radiation in Wh/m2 received on a surface normal to the sun at the top> of the atmosphere> 3.) Global Horizontal Radiation -- Total amount of direct and diffuse> solar radiation in Wh/m2 received on a horizontal surface> 4.) Direct Normal Radiation -- Amount of solar radiation in Wh/m2> received within a 5.7 degree field of view centered on the sun> 5.) Diffuse Horizontal Radiation -- Amount of solar radiation in Wh/m2> received from the sky (excluding the solar disk) on a horizontal> surface> > Thanks,> --> Jordan Shockley> University of Kentucky> Department of Agricultural Economics> 331 C.E. Barnhart Building> Lexington, KY 40546-0276> Email: [log in to unmask]
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