[ncl-talk] Cross sections w/ smoothed terrain.... New issue???

[Bill Ladwig]

Hi Kacie,

Can you upload one of your WRF files by following the instructions here:

https://www.ncl.ucar.edu/ftp_files.shtml

Once you have the file uploaded, can you please send me the name of the
file? I'll take a look at your problem.

Thanks,

Bill


On Mon, Apr 9, 2018 at 12:05 PM, Kacie Shourd <Kacie.Shourd at dri.edu> wrote:

> Hi everyone,
>
> It's been a while since anyone posted to this thread, but I tried the
> suggested fix (modifying my WRFUserARW.ncl line 382) to no avail! There is
> still a good chunk of data missing above the terrain. See the attached
> output images. The wider image is the default with "dz=0.01*z_max" and the
> skinnier image is with "dz=0.00001*z_max".
>
> Attempted fix:
>
> "Have you modified line ~382 in WRFUserARW.ncl yet?  dz can be decreased
> from the default value of 0.01:
>
> ...else
>         z_max = max(z)
>         z_min = 0.
> *; Changed to:*
> *dz = 0.00001 * z_max*
>         ; From:
> *        ;dz = 0.01 * z_max*
>         nlevels = tointeger( z_max/dz )
>         z_var2d = new( (/nlevels/), typeof(z))
>         z_var2d(0) = z_min
>      end if"
>
> There are quite noticeable differences between the two plots, but no
> improvement to the terrain. I am close to giving up on this, but thought I
> would reach out one more time. I have changed other things in the
> "wrf_intrpd_3d" function also without luck. As mentioned before, the
> missing data near the terrain was not an issue in a colleague's RIP plot,
> so I know it is not the data.
>
> Best,
> Kacie
>
> ---
>
> Kacie N. Shourd, M.S.
> 드림
>
> Staff Research Scientist
> Division of Atmospheric Science
> Desert Research Institute, Reno, NV
> Kacie.Shourd at dri.edu
> Work: (775) 674-7049
> ------------------------------
> *From:* Scott Capps [scapps at atmosdatasolutions.com]
> *Sent:* Tuesday, March 27, 2018 4:47 PM
> *To:* Kacie Shourd
> *Cc:* ncl-talk (ncl-talk at ucar.edu)
> *Subject:* Re: [ncl-talk] Cross sections w/ smoothed terrain.... New
> issue???
>
> Have you modified line ~382 in WRFUserARW.ncl yet?  dz can be decreased
> from the default value of 0.01:
>
> ...else
>         z_max = max(z)
>         z_min = 0.
> ; Changed to:
> dz = 0.002 * z_max
>         ; From:
>         ;dz = 0.01 * z_max
>         nlevels = tointeger( z_max/dz )
>         z_var2d = new( (/nlevels/), typeof(z))
>         z_var2d(0) = z_min
>      end if
>
> On Tue, Mar 27, 2018 at 4:36 PM, Kacie Shourd <Kacie.Shourd at dri.edu>
> wrote:
>
>> Hi NCL friends,
>>
>> Attached is an image of the current output I am getting trying to plot a
>> vertical cross section with WRF data in NCL. Also attached is my code, and
>> I can upload the WRF data file for anyone who needs it.
>>
>> I have used this script tons of times in the past with no issue (i.e. no
>> "missing" data near the ground, or at least the terrain was smoothed to
>> cover that up) and am hoping to figure out what's wrong.
>>
>> Could it be the data file I have? If yes, is there a simple way I can
>> extrapolate the RH values to below the ground?
>>
>> Is it the version of NCL I am running?? I used to run this script in v6.4
>> but am using v6.3 at the moment.
>>
>> A colleague of mine made a plot with the same WRF file in RIP and did not
>> have this issue. I would prefer to plot this up in NCL if possible as I
>> think the plots come out nicer and this is going into a document for some
>> pretty important folks...
>>
>> Thanks,
>> Kacie
>>
>> ---
>>
>> Kacie N. Shourd, M.S.
>> 드림
>>
>> Staff Research Scientist
>> Division of Atmospheric Science
>> Desert Research Institute, Reno, NV
>> Kacie.Shourd at dri.edu
>> Work: (775) 674-7049
>>
>> PUBLIC RECORDS NOTICE: In accordance with NRS Chapter 239, this email and
>> responses, unless otherwise made confidential by law, may be subject to the
>> Nevada Public Records laws and may be disclosed to the public upon request.
>>
>> _______________________________________________
>> ncl-talk mailing list
>> ncl-talk at ucar.edu
>> List instructions, subscriber options, unsubscribe:
>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>> <https://linkprotect.cudasvc.com/url?a=http://mailman.ucar.edu/mailman/listinfo/ncl-talk&c=E,1,FvUIVgD7EH9G1hQSxvgiu9p8mf_4k0kEcTABmKT6pVBB-FhMwRwnE4yuShuTwXhNqoezMpeYqatYxdSV83pHVm7uAsGw71owTjHKYqPf7g,,&typo=1>
>>
>>
>
>
> --
> *Scott Capps*
> Principal
> Atmospheric Data Solutions
> <https://linkprotect.cudasvc.com/url?a=http://www.atmosphericdatasolutions.com&c=E,1,ii7FITA5DOfDJKepvgGfOku-AGID3DnAJtS5iWd_oBwb_PIKnfs-1V1XTcN2ZiESPh4EGugxUHZb3Vv0bmuUu2W6sV9LogTv0Nw4PDekVE-r4rFAJI2KDnz5K5wQ&typo=1>
> scapps at atmosdatasolutions.com
> cell: (949) 910-4385
>
>
> _______________________________________________
> ncl-talk mailing list
> ncl-talk at ucar.edu
> List instructions, subscriber options, unsubscribe:
> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20180409/30b904f1/attachment.html>