How to fix short wave radiation in wrf model?(have tried methods in other posts but failed)

[xxi]

Hi,
I'm runnning ideal wrf-les and want to aviod dinrual variation of solar radiation, so I've set SOLCON=800 and coszen=1 in module_radiation_driver.F, and recompiled. But I found swdown is like this in my results(It raises with time：[ 0. 47.26198 77.501724 81.01033 85.63076 88.82928 94.04242 99.099655 105.66551 114.994774 127.070076 141.07881 153.58109 ]). Why does this happen? I'm really confused.
Thank you very much!

 

[Ming Chen]

In the officially released WRF-LES, radiation scheme is turned off. This implies that there is no diurnal variation of solar radiation. It is not necessary to modify module_radiation_driver.F to turn off diurnal variation.