[ncl-talk] Fw: Skew-T

[Cathy Smith]

Hi

I don't have such a script. But, I have read similar data in odd 
formats. What was helpful in the absence of NCL code (which IS tedious 
for weird text) is to preprocess the data in a scripting language, 
sed/awk, Perl etc. Perl I am most familar with and it is very flexible 
when reading values, spaces, etc. It was made for text processing! :) 
But other langauges also can do this.

You then write it out in a way that NCL can read more easily.

Cathy Smith


On 4/25/22 7:29 PM, Dennis Shea via ncl-talk wrote:
> Not sure what to say.
>
> [1] To my knowledge, no one has written a function to decode a SYNOP 
> message.
>
> [2] asciiread and  parsing sequences (checking for spaces, / and =  
> etc) is tedious programming.
>
> Maybe someone in the NCL world has their own script thay could share.
>
> Sorry
> D
>
>
> On Mon, Apr 25, 2022 at 1:57 PM Ehsan Taghizadeh via ncl-talk 
> <ncl-talk at mailman.ucar.edu> wrote:
>
>     Hi
>     I'd sent the following reply to ncl-talk-bounces at mailman.ucar.edu,
>     by mistake.
>
>     /-----------------------------------------------------------------------------/
>     /Sincerely,/
>     /Ehsan Taghizadeh/
>
>
>
>
>     ----- Forwarded Message -----
>     *From:* Ehsan Taghizadeh <ehsantaghizadeh at yahoo.com>
>     *To:* Ncl-talk <ncl-talk-bounces at mailman.ucar.edu>
>     *Sent:* Friday, April 22, 2022, 01:42:21 AM GMT+4:30
>     *Subject:* Re: [ncl-talk] Skew-T
>
>     Dear Dennis,
>     Thank you so much for your nice reply.
>     The software related to the brand of radiosonde, save sounded data
>     in TEMP format. I found below link showing an example of TEMP data
>     for OIII/40754/Tehran-Mehrabad (Iran) station.
>     Display sond
>     <https://www.ogimet.com/display_sond.php?lang=en&lugar=40754&tipo=ALL&ord=DIR&nil=SI&fmt=html&ano=2022&mes=04&day=19&hora=20&anof=2022&mesf=04&dayf=20&horaf=20&send=send>
>
>
>     	
>
>
>         Display sond
>
>     <https://www.ogimet.com/display_sond.php?lang=en&lugar=40754&tipo=ALL&ord=DIR&nil=SI&fmt=html&ano=2022&mes=04&day=19&hora=20&anof=2022&mesf=04&dayf=20&horaf=20&send=send>
>
>
>     If I remember correctly, TTAA and TTCC are related to mandatory
>     levels data (1000, 925, 850, 700, 500, 400, 300, 250, 200, 150,
>     100 mb), and TTBB and TTDD are related to significant levels data
>     (70, 50, 30, 20, 10 mb). Sounded data (temperature, wind and
>     humidity) for each level are coded in these files. I'm not much
>     familiar with these codes, however, each TTXX (TTAA, ..., TTDD)
>     has different sections. For example one section starts with 99,
>     another one starts with 88, ..., 44. Also 31313, 41414, 51515 are
>     related to different sections.
>     However, TEMP format is a standard format, like synop ( SYNOP -
>     Wikipedia
>     <https://en.wikipedia.org/wiki/SYNOP#:~:text=SYNOP%20(surface%20synoptic%20observations)%20is,and%20low%20frequency%20using%20RTTY.>),
>
>
>
>     	
>
>
>         SYNOP - Wikipedia
>
>     SYNOP information is collected by more than 7600 manned and
>     unmanned meteorological stations and more than 2500 ...
>
>     <https://en.wikipedia.org/wiki/SYNOP#:~:text=SYNOP%20(surface%20synoptic%20observations)%20is,and%20low%20frequency%20using%20RTTY.>
>     to report observed data in GTS (Global Telecommunication System).
>     Pardon me for any ambiguity in my sentences.
>
>     /-----------------------------------------------------------------------------/
>     /Sincerely,/
>     /Ehsan Taghizadeh/
>
>
>
>
>     On Thursday, April 21, 2022, 11:48:32 PM GMT+4:30, Dennis Shea
>     <shea at ucar.edu> wrote:
>
>
>     re: "decode TEMP data"
>
>     This is VERY ambiguous.
>
>     Well what format is it?  Text? Some meteorological code?
>
>     On Thu, Apr 21, 2022 at 12:50 PM Ehsan Taghizadeh via ncl-talk
>     <ncl-talk at mailman.ucar.edu> wrote:
>
>         Hope you are doing well.
>         I would like to decode TEMP data (sounding data), then plot
>         skew-t. I found
>         https://www.ncl.ucar.edu/Applications/Scripts/skewt_2.ncl, but
>         what about decoding TEMP data. It could be a PyNGL or python
>         script.
>         I'll be thankful for any help.
>
>         /-----------------------------------------------------------------------------/
>         /Sincerely,/
>         /Ehsan Taghizadeh/
>         /Ph.D. of Meteorology/
>         /Institute of Geophysics, University of Tehran, Iran/
>         /I.R. of Iran Meteorological Organization (IRIMO)/
>
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