[Wrf-users] About dx and dy using lat-lon

[Rabah Hachelaf]

Hello,

I you are running ARW core ,
 dx and dy must be in meters both in nameliste.wps an nameliste.input.


2013/11/14 Robert Schuster <rxschuster at gmail.com>

> Dear WRF users,
>
> I have the same problem as already described below. I configured WRF
> with a regional "lat-lon" domain. My grid spacing is 0.081 degrees in
> each direction. The WPS tools accept dx and dy in degrees (as described
> in the user guide), but real.exe complains about a mismatch between the
> dx/dy from namilist.input and the values stored by metgrid in the
> met_em....nc files.
>
> How to solve this problem? Is a solution to place the metgrid calculated
> dx/dy in meters in namelist.input? Is it better to store dx/dy in the
> metgrid produced files in degrees (for example by editing the attributes
> with ncatted)? Are there any side effects of these solutions?
>
> Best Regards,
> Robert Schuster
>
> Output from real.exe (Version 3.5.1):
> dx and dy from file 9005.376 9005.376
> dx and dy from namelist 8.1000000E-02 8.1000000E-02
> -------------- FATAL CALLED ---------------
> FATAL CALLED FROM FILE: <stdin> LINE: 531
> DX and DY do not match comparing namelist to the input file
> -------------------------------------------
>
> > Dear WRFers colleagues
> >
> > I’m running WRF-Chem and I have my emissions in latitude and longitude,
> > furthermore my domain is quite big, for this reason I want to run WRF
> with
> > “lat-lon” projection. However I am not sure if WRF allows to have dx
> > and dy
> > in the namelist.input file in degrees and how is this done, because it
> > seems that namelist.wps accepts dx and dy in degrees but namelist.input
> do
> > not. Does someone have any idea about this?
> > Thanks a lot and best regards,
> >
> > Francisco A. Leal
> > MSc. Student
> > Wageningen University
> > The Netherlands
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>



-- 
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Cordialement,
Best regards,
Rabah Hachelaf
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