[ncl-talk] regridding wrf and trmm

Appo derbetini appopson4 at gmail.com
Mon Jun 8 12:18:47 MDT 2015


Hi,

I am using   cdo <https://code.zmaw.de/projects/cdo>  to do it following
lines below

cdo  sellonlatbox,minlon,maxlon,minlat,maxlat       TRMM_file.nc
selected_region.nc   (selection of region inside WRF simulation zone)

cdo griddes    selected_region.nc   >  grid_TRMM              (creation of
description file)

cdo remapcon,grid_TRMM    WRF_input.nc      WRF_Interpolated.nc
(interpolation to TRMM grid)

Regards

2015-06-08 14:58 GMT+01:00 Dennis Shea <shea at ucar.edu>:

> Please respond only to ncl-talk.
>
> ---
>
> "Hey but wrf and trmm grids are of differnt type. I cannot substract one
> from another."
>
> That is why you have to interpolate ... then subtract the interpolated
> values.
>
>
>
>
>
> On Mon, Jun 8, 2015 at 7:56 AM, Saurabh Singh <saurabhsingh123op at gmail.com
> > wrote:
>
>> Hey but wrf and trmm grids are of differnt type. I cannot substract one
>> from another.
>> On 8 Jun 2015 21:52, "Dennis Shea" <shea at ucar.edu> wrote:
>>
>>> [1] Interpolate the higher resolution grid to the lower resolution
>>>
>>> [2] http://www.ncl.ucar.edu/Applications/ESMF.shtml
>>>      See, for example, example 29
>>>
>>> On Mon, Jun 8, 2015 at 4:01 AM, Saurabh Singh <
>>> saurabhsingh123op at gmail.com> wrote:
>>>
>>>>
>>>> i have my WRF output having resolution of 50 km X 50 km whereas my TRMM
>>>> file is of resolution 25 degree X 25 degree. i want to either re grid WRF
>>>> output to 25 km and then substract trmm precipitation or regrid TRMM
>>>> precipitation and substract is from WRF to check the bias in precipitation.
>>>>
>>>> can anyone suggest which one is better and methodology to do the above
>>>> in NCL ?
>>>>
>>>> ncl version : 6.3.0
>>>> OS: UBUNTU 15.04
>>>>
>>>> --
>>>> With regards
>>>> Saurabh Kumar singh
>>>>
>>>>  *P** : * *Please consider the environment before printing this e-mail*
>>>>
>>>>
>>>>
>>>>
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>
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