<div dir="ltr"><div><div><div><div><br>A wild guess: I speculate there is a *scaling issue*. <br>-------------------------------------------------------------------<br><a href="https://www.ncl.ucar.edu/Document/Functions/Contributed/epflux.shtml">https://www.ncl.ucar.edu/Document/Functions/Contributed/epflux.shtml</a><br><br></div>The NCL epflux function code can be examined by looking at contributed.ncl [ 6.4.0 ]<br>The NCL function was based upon code developed by scientists at NOAA/PSD. NCL's results match.<br></div><div><br>%> less $NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl <br><br></div>"function epflux" is the user interface but the "function epflux4" is the function that does the work. T<br><br>*As you can see, there is *nothing* that is NCEP specific.*<br><br>---<br></div><div>Are t 'plev' you are inputting 'plev' as hPa or Pa ?<br></div><div><br></div>Some additional information:<br></div><div><div><br><a href="http://www.met.reading.ac.uk/~pn904784/snap/ep_flux_calculations.html">http://www.met.reading.ac.uk/~pn904784/snap/ep_flux_calculations.html</a><br><a href="http://www.met.reading.ac.uk/~pn904784/snap/ssw20122013.html">http://www.met.reading.ac.uk/~pn904784/snap/ssw20122013.html</a><br><a href="http://esrl.noaa.gov/psd/data/epflux/images/EP_Flux_Calculation_and_Display.pdf">http://esrl.noaa.gov/psd/data/epflux/images/EP_Flux_Calculation_and_Display.pdf</a>"
<br>---<br><br></div><br></div><div><div><div><div><div><div><br><br></div></div></div></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Nov 30, 2016 at 11:20 PM, Sitan Heyl <span dir="ltr"><<a href="mailto:heylsitan@gmail.com" target="_blank">heylsitan@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">Hi, All<div> I am calculating the ep flux using NCL function and get a reasonable result from NCEP data. But when I calculate the ep flux from Japanese 55-years Reanalysis, the result is so ridiculous. so I compare the ep flux on 2008/08/01 from two datasets. I found the Fp in JRA is much more than that in NCEP and I think this is the wrong place. So I wonder is there any notice needed when using epflux function? can it be used on the other dataset beside NCEP?</div><div><br></div><div>Bests,</div><div>Yongli</div></div>
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