<div dir="ltr"><div>re: "Global Radiation (G)" ... Global Radiation and Global Horizontal Irradiation (GHI)"<br><br>You should send your question to <a href="mailto:wrfhelp@ucar.edu" target="_blank">wrfhelp@ucar.edu</a> *They* are the WRF experts.<br>===============================================================<br><br></div><div>I think you should also consider:<br> <a href="https://www.ncl.ucar.edu/Document/Functions/Crop/radext_fao56.shtml">https://www.ncl.ucar.edu/Document/Functions/Crop/radext_fao56.shtml</a><br><br></div><div>This is strictly a function of day-of-year and latitude. Think of it as top-of-atmosphere radiation. Please read the FAO-56 documentation and look at the formula used [equation 21].<br><br>=======<br>re: the radsol_fao56 & radsol2_fao56 functions.<br><br></div><div>These require the 'sunhr' which is (commonly) user specified in the 'real world'. See examples.<br><br></div><div>Good Luck<br></div><div><br><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Jun 15, 2017 at 12:17 AM, Imran Hosen <span dir="ltr"><<a href="mailto:hosen.imran09@gmail.com" target="_blank">hosen.imran09@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Dear NCL users,<div><br></div><div>Good day!<br><div><br></div><div>I'm trying to calculate "Global Radiation (G)" from wrfout file. It seems to me that Global Radiation and Global Horizontal Irradiation (GHI) are same. Could you please suggest me whether I am right or wrong?</div><div><br></div><div>I have got couple of functions below for calculating solar radiation from the NCL webpages:</div><div><br></div><div><a href="http://www.ncl.ucar.edu/Document/Functions/Crop/radsol_fao56.shtml" target="_blank">http://www.ncl.ucar.edu/<wbr>Document/Functions/Crop/<wbr>radsol_fao56.shtml</a></div><div><br></div><div><a href="http://ncl.ucar.edu/Document/Functions/Crop/radsol2_fao56.shtml" target="_blank">http://ncl.ucar.edu/Document/<wbr>Functions/Crop/radsol2_fao56.<wbr>shtml</a></div><div><b><br></b></div><div><b>Could you please suggest me how I can calculate G or GHI using NCL</b>. Can I use any of the function from the above links? </div><div><br></div><div>Or, I should look for other ways?</div><div><br></div><div>Your cooperation will be highly appreciated.</div><div><br></div><div>Kind regards,</div><div>Imran<br clear="all"><div><br></div><div class="m_-5696243884855555347gmail_signature"><div dir="ltr"><br><br></div></div>
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