[gradsusr] Generating model charts automatically...please help

AMS Bytča emsiwx at pocasie-bytca.sk
Tue Jun 23 06:21:31 EDT 2020


Hi,

if you run WIN I can make a batch script for you (example) but need to 
know , what you want to download and any script you run manually, so 
that I can change it to take "arguments" for auto runs.


Rgds,

Marian

Dňa 21.6.2020 o 20:04 Jayson Escalante napísal(a):
> To whom it may concern:
>
> I would like to automatically generate weather charts at set times
> using the Global Spectral Model of the Japan Meteorological Agency
> using GrADS (Grid Analysis and Data System, http://opengrads.org/).
> Right now, I just download GRIB files one by one, generate the CTL and
> index file, and run the scripts on GrADS by myself.
>
> I chose JMA-GSM (instead of meteorology heavyweights GFS and ECMWF),
> as there are only a few websites offering graphics for this forecast
> model. Furthermore, I noticed their precipitation forecasts for the
> Philippines were more accurate compared to that of the GFS (used by
> The Weather Network) and Windy (used by Windy app)
>
> I intend to create charts for two areas:
> (1) Western Pacific region (95E ~ 170E, Equator ~ 45N); and,
> (2) the Philippines (4N ~ 22N, 110E ~ 135E)
>
> The weather charts I intend to create for each of those regions include:
> (1) Mean Sea Level Pressure
> (2) Six-Hourly Precipitation Rate
> (3) Surface Wind Direction and Speed
> (4) Significant Wave Height
> (5) Geopotential Height, and Wind Speed/Direction for 925, 850, 700,
> 500, 300, and 200 hPa
>
> The raw files for the model will be downloaded from either
> (http://apps.diasjp.net/gpv/cgi-bin/GPVlist3.sh) or
> (https://www.wis-jma.go.jp/d/o/RJTD/GRIB/Global_Spectral_Model/Latitude_Longitude/1.25_1.25/90.0_-90.0_0.0_358.75/Upper_air_layers/)
>
> JMA-GSM data are updated four times a day, but I aim to use two runs
> only: 00:00 and 12:00 UTC.
>
> The charts will be uploaded on my weather hobby website
> (www.jqweather.com). I don't intend to generate charts as fancy as
> those used in Windy or Ventusky; all I want are single images (i.e.
> one image for the 3rd hour forecast, another for the 6th hour
> forecast, another for the 12th hour forecast, etc) that could be
> easily accessed even by people back in the Philippines who have slow
> internet connections.
>
> I am on a meager budget, and I would greatly appreciate any help to
> make this project possible. Aside from writing scripts on GrADS (which
> I used to generate the charts at home), I have zero experience in
> programming and other complex computer stuff.
>
> Again, Any help to make this dream of mine a reality is greatly
> appreciated. Thank you very much!
>
>
> Yours sincerely,
> Jayson Quinones
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