[ncl-talk] solar radiation

[Komal Shukla]

Hi Barry,

Thank you, what parameter do we take to calculate direct normal?
kim


On Thu, Jan 24, 2019 at 11:28 PM Barry Lynn <barry.h.lynn at gmail.com> wrote:

> Please try taking SWDOWN by itself.
>
> If you need direct normal then write again.
>
> Barry
>
> On Thu, Jan 24, 2019 at 2:15 PM Komal Shukla <komalshukla1992 at gmail.com>
> wrote:
>
>> Dear NCL team,
>>
>> I am trying to extract solar radiaion (w/m2) from my wrf  outputs, and
>> compare it with ground observation.
>>
>> SWDOWN = wrf_user_getvar(aa,"SWDOWN", -1 )      ; 3D tc
>>
>> GLW = wrf_user_getvar(aa,"GLW", -1 )      ; 3D tc
>> I am taking total of swdown and glw and comparing it with ground obs.
>> The total(GLW+SWDOWN = around 1000 w/m2 in summer noon) is way high than
>> the actual observation (around 340 w/m2 in summer noon).
>>
>> My ncl script is
>>
>> rh2 = wrf_user_getvar(aa,"SWDOWN", -1 )      ; 3D tc
>>
>>  rh2_day=new(24,float)
>>
>>  rh2_dd=new((/numFILES,24/),float)
>>
>> rh2_day_ist=new(24,float) ; f
>>
>>  rh2_t=rh2(:,Y1,X1)
>>
>>   print(rh2_t)
>>
>> asciiwrite("rh_pb_720", rh2_t)
>>
>>   do id=0,(numFILES-1)
>>
>>   do ih=0,23
>>
>>       idh=ih+id*24
>>
>>       rh2_dd(id,ih)=rh2_t(idh)
>>
>>   end do
>>
>>   end do
>>
>>  rh2_day_m=dim_avg_n(rh2_dd,0)
>>
>>
>> Is there some other way to calculate surface solar radiation?
>> I'd appreciate any help.
>>
>> Kim
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>
>
> --
> Barry H. Lynn, Ph.D
> Senior Associate Scientist, Lecturer,
> The Institute of the Earth Science,
> The Hebrew University of Jerusalem,
> Givat Ram, Jerusalem 91904, Israel
> Tel: 972 547 231 170
> Fax: (972)-25662581
>
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>
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