From walsh124 at vt.edu  Thu Nov  9 02:14:34 2017
From: walsh124 at vt.edu (Stephen Walsh)
Date: Wed, 8 Nov 2017 20:14:34 -0500
Subject: [Rnomads-user] Trouble viewing GRIB
Message-ID: <CAPohX21_cELrmq6FA_a9cPfppaTFpuhbwc4zpvhBHE2B-+EiTA@mail.gmail.com>

Hello,

My name is Steve Walsh and I am a first year statistics graduate student at
Virginia Tech. I have very little programming experience, so this is my
first time trying to use GRIB data. I downloaded data from UCAR at the
following site: https://data.eol.ucar.edu/cgi-bin/codiac/fgr_form/id=21.093
(example file name after unzipping: ST4.2004081212.06h)

>From looking at the example provided in the help file, it seems that you
need to use a URL to look at the data. However, since I am getting the data
via FTP, I tried to use the link that contained the different GRIB files,
but I think this is causing trouble because (1) the files are compressed .Z
files and (2) the link isn't directly to a single file, it is a link that
has the downloads for each of the files altogether. Is there a way to load
files on your local hard drive, rather than using a URL?

I also understand that I should install rNOMADS with GRIB file support
based on this article:
https://www.r-bloggers.com/how-to-install-rnomads-with-grib-file-support-on-windows/


I followed the instructions but when I get to the very last step and run
*system("wgrib2")*, I receive the following: *Warning message:*
*running command 'wgrib2' had status 127 *

I would greatly appreciate any help or words of wisdom you can offer with
this. Thanks for everything you do to make R a more accessible resource!

Take care,
Steve Walsh
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From danny.c.bowman at gmail.com  Mon Nov 13 05:26:20 2017
From: danny.c.bowman at gmail.com (Daniel Bowman)
Date: Sun, 12 Nov 2017 21:26:20 -0700
Subject: [Rnomads-user] Trouble viewing GRIB
In-Reply-To: <2db59230b8de4dcaa86e7f5d0a8f7102@CY1PR0301MB0891.namprd03.prod.outlook.com>
References: <2db59230b8de4dcaa86e7f5d0a8f7102@CY1PR0301MB0891.namprd03.prod.outlook.com>
Message-ID: <CAN=ZksO=XvQqYFfP29AKSjhpJ4b4zCSJQoMhX2QXRZs7L+bOMg@mail.gmail.com>

Hi Stephen,

I'm sorry you're having issues.  Can you send me the file you're
trying to read, and a copy of the script you're trying to use? It's
hard to say what the problem is without the exact inputs.

Best,

Danny

On Wed, Nov 8, 2017 at 6:14 PM, Stephen Walsh <walsh124 at vt.edu> wrote:
> Hello,
>
> My name is Steve Walsh and I am a first year statistics graduate student at
> Virginia Tech. I have very little programming experience, so this is my
> first time trying to use GRIB data. I downloaded data from UCAR at the
> following site: https://data.eol.ucar.edu/cgi-bin/codiac/fgr_form/id=21.093
> (example file name after unzipping: ST4.2004081212.06h)
>
> From looking at the example provided in the help file, it seems that you
> need to use a URL to look at the data. However, since I am getting the data
> via FTP, I tried to use the link that contained the different GRIB files,
> but I think this is causing trouble because (1) the files are compressed .Z
> files and (2) the link isn't directly to a single file, it is a link that
> has the downloads for each of the files altogether. Is there a way to load
> files on your local hard drive, rather than using a URL?
>
> I also understand that I should install rNOMADS with GRIB file support based
> on this article:
> https://www.r-bloggers.com/how-to-install-rnomads-with-grib-file-support-on-windows/
>
> I followed the instructions but when I get to the very last step and run
> system("wgrib2"), I receive the following: Warning message:
> running command 'wgrib2' had status 127
>
> I would greatly appreciate any help or words of wisdom you can offer with
> this. Thanks for everything you do to make R a more accessible resource!
>
> Take care,
> Steve Walsh

From danny.c.bowman at gmail.com  Tue Nov 14 06:11:32 2017
From: danny.c.bowman at gmail.com (Daniel Bowman)
Date: Mon, 13 Nov 2017 22:11:32 -0700
Subject: [Rnomads-user] Issues with special characters (like parentheses) in
	level names for ReadGrib
Message-ID: <CAN=ZksN9abHzf5NpZcf=4m4oy++yMoKBsKHSEVeDYnPjCYJmmw@mail.gmail.com>

Hi All,

A user kindly pointed out an issue reading grib files with level names like

entire atmosphere (considered as a single layer)

In this case ReadGrib is returning vectors of length 0.

I have fixed the problem and will release a new version soon.  In the
meantime, feel free to contact me for the new version of ReadGrib.

Danny

From danny.c.bowman at gmail.com  Wed Nov 29 06:19:32 2017
From: danny.c.bowman at gmail.com (Daniel Bowman)
Date: Tue, 28 Nov 2017 22:19:32 -0700
Subject: [Rnomads-user] rNOMADS 2.3.8 released
Message-ID: <CAN=ZksM8f0=a+UvK_hQiVpMu7dHj-pV25U+RZh-fn2M7a3h+iw@mail.gmail.com>

Hello all,

I have been planning some substantial revisions to ReadGrib(), but in
the meantime several users have had issues with parentheses in
variable names and problems reading files in Windows.  So I've
released this interim version that fixes those problems.

The next release (2.4.0) will substantially modify ReadGrib():

1.  You will not have to specify variables and levels if you don't want to.
2.  You have the option of just reading the file inventory (I get a
lot of questions asking how to tell what's in a grib file, and this
makes more sense then redirecting people to GribInfo())
3.  Parts of it will be vectorized per Antonious Papautsakis'
revisions (thank you! you will be listed as contributor).

More suggestions are welcome in the meantime.

Best,

Danny