[gradsusr] Wrf output in GrADS

[Yaqiang Wang]

The netCDF data output from WRF are not follow COARDS or CF
conventions, so the data can't be read directly by many popular
meteorological softwares, including GrADS (I mean with sdfopen
method). I don't understand why WRF group made their data different. I
have no experience on ARWpost tool, but I know something of the netCDF
data format used in WRF, which is defined as 'WRF_OUT' conventions in
MeteoInfo software. So you can try to graph the data using MeteoInfo
temporally before you find a better sollution of it. You could only
use MeteoInfo in Windows system for netCDF data, although it could be
used in Linux for other data formats under the support of mono.

On Thu, Jul 14, 2011 at 2:48 PM, Nick Heath <nkh09 at fsu.edu> wrote:
> Jeff and Yaqiang,
>
> Thanks for the ideas.  Unfortunately, I still haven't found a solution.  I have figured out a little more about the problem, I think.  It appears that it is the "standard" variables that look odd.  If I display the umet and vmet diagnostic variables, they look great.  But, if I display the standard U and V variables, they look just like W did.
>
> As you suspected Jeff, I don't need many variables, actually only the U,V, and W wind components.  But, even when just running ARWpost with the 'basic' fields option the variables look crazy.  Any more ideas would be greatly appreciated!
>
> Thanks,
> Nick
>
> ----- Original Message -----
> From: Jeffrey Duda <jdduda at iastate.edu>
> Date: Saturday, July 9, 2011 7:53 pm
> Subject: Re: [gradsusr] Wrf output in GrADS
> To: GrADS Users Forum <gradsusr at gradsusr.org>
>
>> If Yaqiang's idea doesn't work, I would try re-running ARWpost with
>> fewervariables.  I doubt you really need all of those variables,
>> and if your .dat
>> file is too large, there may be a problem with how it displays
>> data.  Also,
>> it appears your XDEF and YDEF lines could be simplified by putting
>> XDEF 210 LINEAR 0.0217
>> or something like that, since all of your levels appear to be equally
>> spaced.
>>
>> Jeff
>>
>> On Sat, Jul 9, 2011 at 6:22 PM, Yaqiang Wang
>> <yaqiang.wang at gmail.com> wrote:
>>
>> > You could try to comment "options byteswapped" in the ctl file.
>> >
>> >
>> > On Sun, Jul 10, 2011 at 4:54 AM, Nick Heath <nkh09 at fsu.edu> wrote:
>> > > Hey Jeff,
>> > >
>> > > I have attached my ctl file and my namelist.ARWPost file.  I
>> didn't> change anything in the ctl file.  Thanks for the help.
>> > >
>> > > -Nick
>> > >
>> > > ----- Original Message -----
>> > > From: Jeffrey Duda <jdduda at iastate.edu>
>> > > Date: Saturday, July 9, 2011 4:41 pm
>> > > Subject: Re: [gradsusr] Wrf output in GrADS
>> > > To: GrADS Users Forum <gradsusr at gradsusr.org>
>> > >
>> > >> Nick,
>> > >> Can you attach your control file?  Did you change anything in it?
>> > >>
>> > >> Jeff Duda
>> > >>
>> > >> On Sat, Jul 9, 2011 at 1:32 PM, Nick Heath <nkh09 at fsu.edu> wrote:
>> > >>
>> > >> > Hey Everyone,
>> > >> >
>> > >> > A while back I received some help with displaying WRF output in
>> > >> GrADS using
>> > >> > ARWPost.  Thanks!  Now, I have a question about some of the
>> > >> fields.  When I
>> > >> > display some fields, the look normal and as expected. But,
>> others> >> look odd.
>> > >> >  I have attached an image of my 'w' field at 500 hPa.  Some
>> other> >> fields,> such as the boundary layer height, also share this
>> > >> pattern.  Other fields,
>> > >> > such as the 'u' and 'v' winds, look fine.  I was wondering if
>> > >> this looks
>> > >> > like an error somewhere in my ARWPost run or an error in my WRF
>> > >> run?  Thanks
>> > >> > an advance for any help!
>> > >> >
>> > >> > -Nick
>> > >> >
>> > >> > _______________________________________________
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>> > >> >
>> > >> >
>> > >>
>> > >>
>> > >> --
>> > >> Jeff Duda
>> > >> Iowa State University
>> > >> Meteorology Graduate Student
>> > >> 3134 Agronomy Hall
>> > >>
>> www.meteor.iastate.edu/~jdduda<http://www.meteor.iastate.edu/%7Ejdduda>> >>
>> > >
>> > > _______________________________________________
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>> > >
>> > >
>> >
>> >
>> >
>> > --
>> > *************************************************
>> > Dr. Yaqiang Wang
>> > Chinese Academy of Meteorological Sciences (CAMS)
>> > 46, Zhong-Guan-Cun South Avenue
>> > Beijing, 100081
>> > China
>> >
>> > yaqiang.wang at gmail.com
>> > **************************************************
>> >
>> > _______________________________________________
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>> > gradsusr at gradsusr.org
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>> >
>>
>>
>>
>> --
>> Jeff Duda
>> Iowa State University
>> Meteorology Graduate Student
>> 3134 Agronomy Hall
>> www.meteor.iastate.edu/~jdduda
>>
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-- 
*************************************************
Dr. Yaqiang Wang
Chinese Academy of Meteorological Sciences (CAMS)
46, Zhong-Guan-Cun South Avenue
Beijing, 100081
China

yaqiang.wang at gmail.com
**************************************************