[Wrf-users] Wrf-users Digest, Vol 68, Issue 32
wrfhelp
wrfhelp at ucar.edu
Tue Apr 20 15:06:29 MDT 2010
A fix for this problem has just been posted on Known Problems and
Fixes page:
http://www.mmm.ucar.edu/wrf/users/wrfv3.2/known-prob-3.2.html
wrfhelp
On Apr 20, 2010, at 2:17 PM, wrf-users-request at ucar.edu wrote:
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> Today's Topics:
>
> 1. fdda problem in 3.2? (Andrew Singleton)
> 2. Re: more WRF 3.2 issues: delayed initialization of nests and
> fine_input_stream (Marcos Tesouro Montecelo)
> 3. Re: Problem of two-way nested run WRF v3.2 (Feng Liu)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 20 Apr 2010 18:02:44 +0100
> From: Andrew Singleton <a.singleton at imperial.ac.uk>
> Subject: [Wrf-users] fdda problem in 3.2?
> To: wrf-users at ucar.edu, wrfhelp at ucar.edu
> Message-ID:
> <p2t314f71841004201002i7a357303t1fc0189f3dc429b8 at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> I'm trying to run with 3d gridded analysis nudging in V3.2 -
> However, there
> appears to be a problem in generating the fdda fields correctly in
> real.exe.
> All of the *_NDG_OLD variables in the wrffdda_d0* files are zero.
> This is
> causing large jumps in the nudged variables after the nudging is
> applied in
> wrf. I am following exactly the same method that I used in V3.1.1 and
> previous version and have also tried adding io_form_gfdda = 2 to the
> fdda
> namelist put this does not help. I've tried with and without
> nesting, for a
> number of different dates and geographic areas and both ERA-40 and
> GFS data
> sources with the same problem each time. Without grid_fdda the model
> runs
> fine.
>
> Am I missing something new that is required to use grid_fdda in V3.2
> (or
> forgotten something very obvious somewhere along the lines) or are
> others
> having this problem? I'm using Intel Fortran 11.1 compiling the
> model for
> MPI if that's of any relevance.
>
> The relevant section of namelist.input is below:
>
> &fdda
> grid_fdda = 1,
> gfdda_inname = "wrffdda_d<domain>",
> io_form_gfdda = 2,
> gfdda_interval_m = 360,
> gfdda_end_h = 48,
> guv = 0.0003,
> gt = 0.0003,
> gq = 0.0003,
> /
>
> Cheers,
> Andrew
>
> --
> Dr. Andrew Singleton
> Space And Atmospheric Physics
> Imperial College London
> Blackett Laboratory
> London
> SW7 2AZ
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> ------------------------------
>
> Message: 2
> Date: 20 Apr 2010 18:04:40 +0000
> From: Marcos Tesouro Montecelo <marcos.tesouro at meteogalicia.es>
> Subject: Re: [Wrf-users] more WRF 3.2 issues: delayed initialization
> of nests and fine_input_stream
> To: wrfhelp <wrfhelp at ucar.edu>
> Cc: wrf-users <wrf-users at ucar.edu>
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> From: Marcos Tesouro Montecelo <marcos.tesouro at meteogalicia.es>
> Subject: Re: [Wrf-users] more WRF 3.2 issues: delayed initialization
> of
> nests and fine_input_stream
> Date: Tue, 20 Apr 2010 12:51:47 +0200
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> ------------------------------
>
> Message: 3
> Date: Tue, 20 Apr 2010 09:19:57 -0700
> From: "Feng Liu" <fliu at mag.maricopa.gov>
> Subject: Re: [Wrf-users] Problem of two-way nested run WRF v3.2
> To: "Ming Chen" <chenming at ucar.edu>
> Cc: wrfhelp <wrfhelp at ucar.edu>, wrf-users <wrf-users at ucar.edu>
> Message-ID:
> <A01A26511CAA69409D6D8095B3E104BD02BFB70F at MAIL.mag.maricopa.gov>
> Content-Type: text/plain; charset="us-ascii"
>
> Ming,
> Thank you for your response. Please find the namelist.wps and
> namelist.input attached. I also send you the headers of wrfout files
> for
> all 4 domains, because another problem is that only wrfout_d01 gives
> the
> MMINLU (="MODIFIED_IGBP_MODIS_NOAH" for my case), however, MMINLU in
> wrfout_d02,d03,d04 is not able to show any information about land use
> database, see attached headers. Thanks.
> Feng
>
>
> -----Original Message-----
> From: Ming Chen [mailto:chenming at ucar.edu]
> Sent: Tuesday, April 20, 2010 7:34 AM
> To: Feng Liu
> Cc: wrfhelp; wrf-users
> Subject: Re: [Wrf-users] Problem of two-way nested run WRF v3.2
>
> Feng ,
>
> I just did a quick two-way nesting run with WRFV3.2. However, I cannot
> repeat your errors of nest-domain shifting. Can you send me your
> namelist.wps and namelist.input to take a look? Thanks.
>
> Ming
>
>> Hi, wrfhelp and wrfuser,
>> I conducted two-way nested run with WRF v3.2 and found the problem
>> of
>> nested domain location shift. Except of mother domain,d01, central
>> coordinates for all daughter domains shift to (lat=0, lon=0)
>> according
>> to wrfout_d02, d03, and d04. However, there is no any coordinates
> shift
>> problem for all domains according to WPS outputs and geo_em_d0*.
> Please
>> see attached for detail information. Thanks for anyone who can figure
>> out the problem. I have no idea what is happened to WRF3.2.
>> Thanks.
>> Feng
>>
>>
>>
> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> Wrf-users mailing list
>> Wrf-users at ucar.edu
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>
>
> --
> Dr. Ming Chen
> Earth & Sun System Laboratory
> National Center for Atmopsheric Research
> FL3, Room 3081
> Phone: (303) 497 8196
> Boulder, Co 80307
>
>
>
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> End of Wrf-users Digest, Vol 68, Issue 32
> *****************************************
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