[ncl-talk] rainfall averaging

[wrfhelp]

Geeta,

No you do not need to use the destaggering function.  Precip is not
staggered.

-wrfhelp-

On Mon, Nov 17, 2014 at 8:08 AM, Dennis Shea <shea at ucar.edu> wrote:

> Hello,
>
> Your email is being forwarded to 'wrfhelp at ucar.edu' They should best know
> how to area weight the WRF output.
>
> --
>
> If your WRF file has a variable that indicates the area of each grid cell,
> use
>
> https://www.ncl.ucar.edu/Document/Functions/Built-in/wgt_areaave2.shtml
>
> Examples 1 and, in particular, 3  may be helpful.
>
> On Mon, Nov 17, 2014 at 2:41 AM, Geeta Geeta <geetag54 at yahoo.com> wrote:
>
>>
>> Hi all.
>>
>> I have to compute average rainfall over a box (say 10-20N/60-90E) from
>> wrf output using the NCL script.
>>
>> I am also using MET software for verification, I converted the rainfall
>> from wrfout files into netcdf files (I named them as
>> model24_2011060100.nc) using the PCP_COMBINE tool model24_2011060100.nc
>> file has ONLY rainfall data.
>>
>> Now my confusion is as follows.
>>
>> Do I have to use the  destaggering function for this data file before I
>> calculate area average???.
>> 1. I saw the ncl scripts that use the wrfout file directly.
>>
>> http://www2.mmm.ucar.edu/wrf/OnLineTutorial/Graphics/NCL/Examples/PRECIP/wrf_Precip.ncl
>>
>> 2. there is destaggering function
>>
>> http://www.ncl.ucar.edu/Document/Functions/WRF_arw/wrf_user_unstagger.shtml
>>
>>
>> In anticipation ......................................
>> geeta
>>
>>
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>>
>
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