[Rnomads-user] DODSGrab Error, Accessing Ensemble Weather Models.

Tue Apr 20 14:11:22 CEST 2021

Thanks for letting me know!  I will look at it.

On Mon, Apr 19, 2021 at 8:14 AM Francis <francis.felici at gmail.com> wrote:

> Hi Danny,
> thank you for your amazing package.
>
> I have a problem while trying to reproduce the code for accessing ensemble
> weather models found at this link:
> https://bovineaerospace.wordpress.com/2016/11/24/accessing-ensemble-weather-models-with-rnomads/
>
> When I execute the exact same code but with a different model (model.urls
> <- GetDODSDates("gens_bc")     instead of "gens"),
> I get the following error:
>
>
> [1] "
> https://nomads.ncep.noaa.gov:443/dods/gens_bc/gens20210419/gep_all_06z.ascii?tmpprs[0:20][0:0][0:25][124:128][279:283]
> "
> There may have been an error retrieving data from the NOMADS server.  HTML
> text is as follows
> <html>
> <head>
>   <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
>   <title>GrADS Data Server - error</title>
> </head>
>  <body bgcolor="#ffffff">
> <a href="http://nomads.ncep.noaa.gov:80/dods">GrADS Data Server</a>
> <br>
> <h2>GrADS Data Server - error</h2>
> <hr><br>
> The server could not fulfill this request:<p><b>
> http://nomads.ncep.noaa.gov/dods/gens_bc/gens20210419/gep_all_06z.ascii?tmpprs[0:20][0:0][0:25][124:128][279:283]</b><p>
> because of the following error:<p>
> <b>constraint parsing failed; Invalid Parameter Exception:
> DArrayDimension.setProjection: Bad Projection Request: stop >= size</b><p>
> Check the syntax of your request, or click <a href=".help">here</a> for
> help using the server.
> <br>
> <hr><font size="-1"><a href="http://www.iges.org/grads/gds">
> GrADS Data Server</a> 2.0 (<a href="
> http://nomads.ncep.noaa.gov:80/dods/help
> ">help using this server</a>)
> .  </font>
> <br>
> </body>
> </html>
> Error in 2:(r.end - 1) : argument of length 0
>
>
> Do you have any idea of why this error is coming up?
>
>
> Thankfully,
> Francis.
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