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Outputting only U,V wind speed data at iso-pressure level

dakyoung

New member
Hello.

I would like to print out the U, V of the isobaric level using WRF.
ex) A total of 25 iso-pressure levels 201300, 200100, 100000, 97500, 95000, 92500...I want to obtain wind speed data U,V as an .nc file

In this case, can I use &diag, auxhist23, &mod_levs?

I am attaching the namelist.wps and namelist.input that I wrote.
I would appreciate it if you could review if it was written as I intended.

I'll be waiting for the reply.
Thank you.
 

Attachments

  • namelist.input
    4.3 KB · Views: 8
  • namelist.wps
    1.5 KB · Views: 4
You don't need to change anything in namelist.wps.

You only need to activate this option by setting:

p_lev_diag = 1
auxhist23_outname=”wrfpress_d<domain>_<date>”
auxhist23_interval = 60, 60,
frames_per_auxhist23 = 1, 1,

Note that "auxhist23_outname" in your namelist is not correct. Please follow what I give above.
 
You don't need to change anything in namelist.wps.

You only need to activate this option by setting:

p_lev_diag = 1
auxhist23_outname=”wrfpress_d<domain>_<date>”
auxhist23_interval = 60, 60,
frames_per_auxhist23 = 1, 1,

Note that "auxhist23_outname" in your namelist is not correct. Please follow what I give above.

Thanks for your reply.

As you suggested, I modified the namelist.wps, namelist.input file and ran the ./wrf.exe, but there is no wrfpress_d01_2022-05-05_00:00 file
There are only wrfout_d01_2022-05_00:00 and wrfout_d01_2022-05_01:00:00.

There should be a file of wrfpress_d01_2022-05-05_00:00:00 in ../test/em_real/, right?

I will attach the revised namelist.wps, namelist.input. Can you go over it?

Thank you.
 

Attachments

  • namelist.input
    4 KB · Views: 7
  • namelist.wps
    1.3 KB · Views: 3
In your namelist.inpput, you set

auxhist23_outname = "wrfpress_d01_2022-05-05_00:00:00"

This is not correct. Please set it to

auxhist23_outname=”wrfpress_d<domain>_<date>”
 
Thanks! Following your solution, I got a wrfpress file.
Does the wrfpress file generated by this output have only wind speed data? Or is it necessary to extract wind speed data using ncl or something else?
 
No. The file should contain other variables like temperature and geopotential height etc.
You can look at the data by
ncdump -h wrfpress
 
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