[Wrf-users] Wrf-users Digest, Vol 166, Issue 9

[HEDDE Thierry 137147]

Hi Elsa,

You're confusing the domain definition and map projection.
The domain definition may be defined through:
? parent_id????????????????? = 0,
 ? parent_grid_ratio????????? = 1,
 ? i_parent_start???????????? = 1,
 ? j_parent_start???????????? = 1,
 ? e_we?????????????????????? = 1024,
 ? e_sn?????????????????????? = 1024,
 ? geog_data_res????????????? = '2m',
 ? dx???????????????????????? = 6000.0,
 ? dy???????????????????????? = 6000.0,

But the other data:
? map_proj?????????????????? = 'mercator',  ? ref_lat??????????????????? = 44.25,  ? ref_lon??????????????????? = 11.25,  ? truelat1?????????????????? = 44.25,  ? truelat2?????????????????? = 60.0,  ? stand_lon????????????????? = 0,  ?
Only define the map projection : mercator, lambert...

You should have a serious look at the user manual and find a tuto on map projections...

You may use WRF portal to begin with domain definition:
https://esrl.noaa.gov/gsd/wrfportal/WRFPortal.html

Cheers
Thierry
-----Message d'origine-----
De : Wrf-users <wrf-users-bounces at ucar.edu> De la part de wrf-users-request at ucar.edu
Envoyé : lundi 25 juin 2018 17:30
À : wrf-users at ucar.edu
Objet : Wrf-users Digest, Vol 166, Issue 9

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. WPS: ref_lat problem (Elsa Tejada)


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

Message: 1
Date: Mon, 25 Jun 2018 14:17:28 +0000
From: Elsa Tejada <elsa.tejada at meteoforenergy.com>
To: wrf-users at ucar.edu
Subject: [Wrf-users] WPS: ref_lat problem
Message-ID: <1f61b0a0-85ed-30b3-8e47-b7eebd247017 at meteoforenergy.com>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

To whom may it concern,

I am trying to run WPS for a certain area of Europe and North of Africa but I have a problem. I set the variables *ref_lat* and *ref_lon* in the center of the area, *44.25N 11.25E*, however the output file is not centered on that point: the longitude is perfect but the latitude variable goes from 10.8N to 65.7N, so the center is *38.25N* instead of 44.25N.

This is my namelist.wps file

&share
 ?wrf_core = 'ARW',
 ? max_dom??????????????????? = 1,
 ? start_date???????????????? = '2014-10-06_03:00:00',  ? end_date???????????????? = '2014-10-06_06:00:00',  ? interval_seconds?????????? = 10800  ?io_form_geogrid = 2, /

&geogrid
 ? parent_id????????????????? = 0,
 ? parent_grid_ratio????????? = 1,
 ? i_parent_start???????????? = 1,
 ? j_parent_start???????????? = 1,
 ? e_we?????????????????????? = 1024,
 ? e_sn?????????????????????? = 1024,
 ? geog_data_res????????????? = '2m',
 ? dx???????????????????????? = 6000.0,
 ? dy???????????????????????? = 6000.0,
 ? map_proj?????????????????? = 'mercator',  ? ref_lat??????????????????? = 44.25,  ? ref_lon??????????????????? = 11.25,  ? truelat1?????????????????? = 44.25,  ? truelat2?????????????????? = 60.0,  ? stand_lon????????????????? = 0,  ?geog_data_path = '/home/Build_WRF/WPS_GEOG'
 ?opt_geogrid_tbl_path = '/home/Build_WRF/WPS/geogrid/'
/

&ungrib
 ?out_format = 'WPS',
 ?prefix = 'FILE',
/

&metgrid
 ?fg_name = 'FILE'
 ?io_form_metgrid = 2,
 ?opt_metgrid_tbl_path = '/home/Build_WRF/WPS/metgrid/'
/

And? the geogrid.log file is attached.

I would like to know which is the problem, why the result is not centered on ref_lat. Is it a projection problem, or related to ref_x ref_y variables... ?

Thank you very much,
Kind regards.


Meteo for Energy *
 ???? Elsa Tejada*
 ??? Meteorologist


*?? Meteo for Energy*
 ?? Parque Tecnol?gico de ?lava c/Albert Einstein 15 Mi?ano (?lava)  ?? phone: +34 945 771 085 / www.meteoforenergy.com <http://www.meteoforenergy.com>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.ucar.edu/pipermail/wrf-users/attachments/20180625/6c676e08/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: ogklindeafbaklgp.png
Type: image/png
Size: 9494 bytes
Desc: not available
URL: <http://mailman.ucar.edu/pipermail/wrf-users/attachments/20180625/6c676e08/attachment.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: geogrid.log
Type: text/x-log
Size: 13602 bytes
Desc: not available
URL: <http://mailman.ucar.edu/pipermail/wrf-users/attachments/20180625/6c676e08/attachment.bin>

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

Subject: Digest Footer

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


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

End of Wrf-users Digest, Vol 166, Issue 9
*****************************************