[Wrf-users] Re:Wrf-users Digest, Vol 41, Issue 1

eddycarl at 126.com eddycarl at 126.com
Thu Jan 3 21:06:49 MST 2008


Hi Dan, 

After you add the "fdda" part in your namelist.input, have you run real.exe again to obtain the "wrffdda_d01" file? 

 
Carl 
 

ÔÚ2008-01-04£¬wrf-users-request at ucar.edu дµÀ£º

Send Wrf-users mailing list submissions to
	wrf-users at ucar.edu

To subscribe or unsubscribe via the World Wide Web, visit
	http://mailman.ucar.edu/mailman/listinfo/wrf-users
or, via email, send a message with subject or body 'help' to
	wrf-users-request at ucar.edu

You can reach the person managing the list at
	wrf-users-owner at ucar.edu

When replying, please edit your Subject line so it is more specific
than "Re: Contents of Wrf-users digest..."


Today's Topics:

   1. WRF Model Version 2: Experimental Nudging Options -	question
      2 (Dan Dansereau)
   2. Re: Wrf-users Digest, Vol 40, Issue 9 (wrfhelp)


----------------------------------------------------------------------

Message: 1
Date: Wed, 2 Jan 2008 14:38:25 -0800
From: "Dan Dansereau" <ddansereau at hydropoint.com>
Subject: [Wrf-users] WRF Model Version 2: Experimental Nudging Options
	-	question 2
To: <wrf-users at ucar.edu>
Message-ID:
	<9E8869B62C56004781914D8107A36DEF01AA9DF6 at email.corp.hydropoint.com>
Content-Type: text/plain;	charset="iso-8859-1"

To All
Hello - again - 2nd, question - this time about analysis nudging?
I have the analysis files in proper directory and when I run the real.exe - wrf.exe sequence, it executes properly. 
However when I turn in the fdda by using the following namelist fragment 

&fdda
 grid_fdda                           = 1,
 gfdda_inname                        = "wrffdda_d<domain>",
 gfdda_interval_m                    = 360,
 gfdda_end_h                         = 24,
 io_form_gfdda                       = 2,
 fgdt                                = 0,
 if_no_pbl_nudging_uv                = 0,
 if_no_pbl_nudging_t                 = 0,
 if_no_pbl_nudging_q                 = 0,
 if_zfac_uv                          = 0,
  k_zfac_uv                          = 10,
 if_zfac_t                           = 0,
  k_zfac_t                           = 10,
 if_zfac_q                           = 0,
  k_zfac_q                           = 10,
 guv                                 = 0.0003,
 gt                                  = 0.0003,
 gq                                  = 0.0003,
 if_ramping                          = 1,
 dtramp_min                          = 60.0,
 /

I get the following error in the rsl.out.0000 files
.
.
 D01 Analysis nudging for wind is turned on and Guv=   0.3000E-03
 D01 Analysis nudging for temperature is turned on and Gt=   0.3000E-03
 D01 Analysis nudging for water vapor mixing ratio is turned on and Gq=   0.3000E-03
Timing for Writing wrfout_d01_2008-01-01_00:00:00 for domain        1:42.94600 elapsed seconds.
             2  input_wrf: wrf_get_next_time current_date: 2008-01-01_00:00:00 Status =          -102
 -------------- FATAL CALLED ---------------
 FATAL CALLED FROM FILE:  input_wrf.b  LINE:     491
  ... Could not find matching time in input file
 -------------------------------------------

The Error is always on the 1st output.
Any cluse of what I am doing wrong - or is there additional documentation besides the 
http://www.mmm.ucar.edu/wrf/users/wrfv2/How_to_run_grid_fdda.html
page?

Thanks in advance again ....

Dan A. Dansereau
Director - WeatherTRAK Climate Center
1.800.362.8774?Main Office
1.707.338.4539 cell
1.435.755.9417 Utah Office



------------------------------

Message: 2
Date: Wed, 2 Jan 2008 18:01:10 -0700
From: wrfhelp <wrfhelp at ucar.edu>
Subject: [Wrf-users] Re: Wrf-users Digest, Vol 40, Issue 9
To: wrf-users at ucar.edu
Message-ID: <C8F4A91E-3C46-4630-875C-EC9D09F816CA at ucar.edu>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed

For surface observations, the influence of it will be extended to the  
model-calculated boundary layer with
the weight decreasing with vertical distance above the surface.  
Therefore, the surface data will not influence
model above model-computed PBL height. For upper air data, they do not
extend down to the boundary layer.

wrfhelp

On Dec 29, 2007, at 12:00 PM, wrf-users-request at ucar.edu wrote:

> Send Wrf-users mailing list submissions to
> 	wrf-users at ucar.edu
>
> To subscribe or unsubscribe via the World Wide Web, visit
> 	http://mailman.ucar.edu/mailman/listinfo/wrf-users
> or, via email, send a message with subject or body 'help' to
> 	wrf-users-request at ucar.edu
>
> You can reach the person managing the list at
> 	wrf-users-owner at ucar.edu
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Wrf-users digest..."
>
>
> Today's Topics:
>
>    1. WRF Model Version 2: Experimental Nudging Options (Dan  
> Dansereau)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 28 Dec 2007 17:02:14 -0800
> From: "Dan Dansereau" <ddansereau at hydropoint.com>
> Subject: [Wrf-users] WRF Model Version 2: Experimental Nudging Options
> To: <wrf-users at ucar.edu>
> Message-ID:
> 	<9E8869B62C56004781914D8107A36DEF01AA9A11 at email.corp.hydropoint.com>
> Content-Type: text/plain;	charset="iso-8859-1"
>
> To All
> After reading a considerable amount of contradicting email about  
> the observational nudging - I feel that I need to ask the experts a  
> set of yes/no questions, and possibly why.
>
> 1) Does the observational nudging work on "the surface" / or lowest  
> or inside the boundary layer?
>
> 2) Do the surface only stations nudge or change the data above the  
> boundary layer?
>
> And
>
> 3) If number 1 is no - could you point me to some documentation/ 
> reference material as to why this is this way?
>
>
> Thanks in Advance
> Dan A. Dansereau
> Director - WeatherTRAK Climate Center
> 1.800.362.8774 Main Office
> 1.707.338.4539 cell
> 1.435.755.9417 Utah Office
>
>
>
> ------------------------------
>
> _______________________________________________
> Wrf-users mailing list
> Wrf-users at ucar.edu
> http://mailman.ucar.edu/mailman/listinfo/wrf-users
>
>
> End of Wrf-users Digest, Vol 40, Issue 9
> ****************************************



------------------------------

_______________________________________________
Wrf-users mailing list
Wrf-users at ucar.edu
http://mailman.ucar.edu/mailman/listinfo/wrf-users


End of Wrf-users Digest, Vol 41, Issue 1
****************************************
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.ucar.edu/pipermail/wrf-users/attachments/20080104/40b8de33/attachment.html


More information about the Wrf-users mailing list