Soundings in GrADS

[Marco Stoll]

Hy Dan,

thanks for your help, the IGRA dataset was exactly what i was
looking for.

Unfortunately, following the links in the list @
http://nomads.ncdc.noaa.gov/tmp/IgraCountries.html
does not return any dods-url to my browser.
May be due to the general loading problems of NOMAD servers
mentioned in several threads during the last few days???

This is what the server answers:
"The server could not fulfill this request:
http://nomads.ncdc.noaa.gov:9091/dods/IGRA_STATION_RAOBS/501/
because of the following error:
is not an available service"

Is the link wrong, or has the data moved?

Thanks in advance,
Marco







Quoting Dan Swank <Dan.Swank at NOAA.GOV>:

> Marco Stoll,
>
> NCDC NOMADS has recently put the NCDC Integrated Global Radiosounde
> Archive - Upper Air dataset on our Grads Data Server.
>
> The Observations are grouped by station and the stations grouped by
> country, to make naviagion easier, see the page:
> http://nomads.ncdc.noaa.gov/tmp/IgraCountries.html
> This contains GDS links todirectory listings of each station in the
> respective country.
>
> The GDS can be used to get text data using this sample given by Jennifer
> Adams,
> This should be what you are looking for:
>
> This is the first release of this dataset, if you encounter any problems
> with it let me know.
>
> ======================================
>
> If you run GrADS locally,  open that data set, set the dimension
> environment, and make a display request, e.g.
> set x 1
> set y 1
> set t last
> set z 1000 100
> d t(stid=72520)
>
> then GrADS will display the sounding and give you this message:
> gadods: requesting
> http://nomads.ncdc.noaa.gov:9091/dods/IGRA_STATION_RAOBS/425/
> igra.72520.dods?
> stid,lon,lat,time,lev,t&bounds(1,1,1,1,1000,100,00Z01JAN2004,00Z01JAN200
> 4)&stid("72520")
>
> Which shows you how to set up the constraints for station data
> requests. To get ascii data, simply swap "dods?" with "ascii?" and type
> that URL into your browser. Then you get this:
>
>
http://nomads.ncdc.noaa.gov:9091/dods/IGRA_STATION_RAOBS/425/igra.72520.ascii?stid,lon,lat,time,lev,t&bounds(1,1,1,1,1000,100,00Z01JAN2004,00Z01JAN2004)&stid("72520")
>
> stid, lon, lat, time, lev, t
> "72520\000\000\000", -80.23, 40.53, 37988.0, 925.0, 0.2
> "72520\000\000\000", -80.23, 40.53, 37988.0, 850.0, -6.3
> "72520\000\000\000", -80.23, 40.53, 37988.0, 700.0, -15.1
> "72520\000\000\000", -80.23, 40.53, 37988.0, 500.0, -28.8
> "72520\000\000\000", -80.23, 40.53, 37988.0, 400.0, -39.2
> "72520\000\000\000", -80.23, 40.53, 37988.0, 321.5, -49.7
> "72520\000\000\000", -80.23, 40.53, 37988.0, 300.0, -50.2
> "72520\000\000\000", -80.23, 40.53, 37988.0, 250.0, -49.9
> "72520\000\000\000", -80.23, 40.53, 37988.0, 200.0, -49.9
> "72520\000\000\000", -80.23, 40.53, 37988.0, 150.0, -54.5
> "72520\000\000\000", -80.23, 40.53, 37988.0, 100.0, -56.7
>
> You can get the same information inside GrADS with the 'set gxout
> print' option.
>
> ======================================
>
> -Dan
>
>
>
>
> Marco Stoll wrote:
>
> >Dear GrADS users,
> >
> >i have to compare model profiles with soundings.
> >
> >Is there an online source (archive) with upper air soundings
> >in a GrADS-readable format ?
> >
> >If not, what is the easiest way to get the (text format) sounding data
> >(easily available e.g. at University of Wyoming) into GrADS?
> >
> >Thanks to all contributions
> >
> >Marco
> >
> >
> >
> >------------------------------------------------------
> >This mail was sent through IMP at http://mail.unibe.ch
> >
> >
>
> --
> Dan Swank <dan.swank at noaa.gov>
> NOMADS programmer
> Contractor - STG, Incorporated
> 151 Patton Avenue, Room 514
> Asheville, NC 28801
> Phone: 828-271-4007
>




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