[Wrf-users] Winds

[claudiomet]

Set

extrapolate = .true.

In yor ARWpost namelist to extrapolate variables below ground.
According to my experience the extrapolation it's not accurate,
because the variables loses the modification influenced by the
topography

Cheers !

2011/3/10 Ahsan Ali <ahsanshah01 at gmail.com>:
> Yeah That area is hilly and having high mountains (upper areas of Pakistan).
> But we are using another model HRM (High resolutions regional model) at
> 11km, that is showing winds at all levels in this area. So is there any was
> to change topograhy. Also there is much differennce in model height and
> actual height of this area.
>
> On Thu, Mar 10, 2011 at 1:20 AM, claudiomet <claudiomet at gmail.com> wrote:
>>
>> Is there are topography in the blank areas, mountains perhaps ?
>> Look at the wind vectors around the blank areas, the vectors behavior
>> looks like affected by topography
>> cheers !
>>
>> 2011/3/9 Ahsan Ali <ahsanshah01 at gmail.com>:
>> > Hello,
>> >  I am running WRF 3.2.1 at 11km resolution for selected region. I am
>> > having
>> > problem while visualizing Winds at different pressure levels. while
>> > going
>> > down from 200hpa to 850hpa there is increasing white patch in some area
>> > showing no winds. The images are attached. Help is needed.
>> > Regards,
>> >
>> > --
>> > Syed Ahsan Ali Bokhari
>> > Electronic Engineer (EE)
>> > Research & Development Division
>> > Pakistan Meteorological Department H-8/4, Islamabad.
>> > Phone # off  +92518358714
>> > Cell # +923155145014
>> >
>> >
>> > _______________________________________________
>> > Wrf-users mailing list
>> > Wrf-users at ucar.edu
>> > http://mailman.ucar.edu/mailman/listinfo/wrf-users
>> >
>> >
>>
>>
>>
>> --
>> Claudio Cortes
>> +56 (2) 2994121
>>
>> Meteorologo
>> Laboratorio de Informática Ambiental (LIA)
>> Unidad de Modelacion y Gestion de la Calidad del Aire (UMGCA)
>> Centro Nacional del Medio Ambiente (CENMA)
>>
>> --
>> Claudio Cortes
>> +56 (2) 2994121
>>
>> Meteorologist
>> Laboratory Research, Innovation and Applied Informatics
>> Modeling and Air Quality Management Unit
>> National Enviroment Center, Chile (CENMA)
>
>
>
> --
> Syed Ahsan Ali Bokhari
> Electronic Engineer (EE)
> Research & Development Division
> Pakistan Meteorological Department H-8/4, Islamabad.
> Phone # off  +92518358714
> Cell # +923155145014
>
>



-- 
Claudio Cortes
+56 (2) 2994121

Meteorologo
Laboratorio de Informática Ambiental (LIA)
Unidad de Modelacion y Gestion de la Calidad del Aire (UMGCA)
Centro Nacional del Medio Ambiente (CENMA)

--
Claudio Cortes
+56 (2) 2994121

Meteorologist
Laboratory Research, Innovation and Applied Informatics
Modeling and Air Quality Management Unit
National Enviroment Center, Chile (CENMA)