[gradsusr] gradsusr Digest, Vol 45, Issue 10

[Mayes, Fred]

I did a query.  If I understand how GrADS works, the variables are:
Ps
Ua
Va
Zg
Ta
Hus
Ts
Pr

I assume that "z" was the vertical level (e.g., 100, 200, 250, etc.).  zg is not the same, is it?  

Fred M.

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Subject: gradsusr Digest, Vol 45, Issue 10

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Today's Topics:

   1. skew-t Plot (Mehdi Alijahan)
   2. Re: Tutorial assistance (Jennifer Adams)


----------------------------------------------------------------------

Message: 1
Date: Thu, 7 Nov 2013 14:16:11 -0800 (PST)
From: Mehdi Alijahan <mehdi_alijahan at yahoo.com>
Subject: [gradsusr] skew-t Plot
To: "gradsusr at gradsusr.org" <gradsusr at gradsusr.org>
Message-ID:
	<1383862571.83374.YahooMailNeo at web122602.mail.ne1.yahoo.com>
Content-Type: text/plain; charset="iso-8859-1"

Dear all
Good time
I want draw skew-t plot for 32.5 lat, 48.5 lon, 18z1aug2012 and 1000 100 hpa lev.
please help me step by step from open data until draw plot.

thank you so much
mehdi aalijahan
?


Mehdi Aalijahan
PHD Student at Mohaghegh Ardabili Univercity Physical Geography Climatology Synoptic Climatology field

Ardabil

Iran
Tell:+98 914 153 7798
Email Address:?
mehdi_alijahan at yahoo.com
mehdi.alijahan at gmail.com

mehdi.alijahan at modares.ac.irm.alijahan@uma.ac.ir
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Message: 2
Date: Fri, 8 Nov 2013 11:17:12 -0500
From: Jennifer Adams <jma at cola.iges.org>
Subject: Re: [gradsusr] Tutorial assistance
To: GrADS Users Forum <gradsusr at gradsusr.org>
Message-ID: <FDC50A83-0B1E-4F69-8F71-A273778C003A at cola.iges.org>
Content-Type: text/plain; charset="windows-1252"

Hi, Fred -- 

On Nov 8, 2013, at 10:44 AM, Mayes, Fred wrote:

> I am attempting to go through the tutorial for the Windows version of 
> GrADS, http://ieges.org/grads/gadoc/tutorial.html .  I performed the 
> operations
>  
> clear
> set lon -90
> set lat   40
> set lev 500
> set t 1
>  
> on the data set model.ctl. In doing so, I received back after the ?set 
> lat 40? command the statement, ?LAT set to 42 42?.  Is this to be expected?
The grid in model.ctl is very coarse. When you request a latitude or longitude that does not exactly match the center of a grid point, it sets the dimension to the lat/lon closest to your request. The message it returns is to let you know what that lat/lon actually is. 

>  
> After this, I gave the command ?d z? and received back an ?Invalid Operand? notice that ?z not a variable or function name.?
If you issue a 'q file' command, GrADS will show you the list of variables in your file. Is 'z' in that list? 

--Jennifer


> Please advise.  Thanks.
>  
> Fred Mayes
> Senior Technology  Analyst,
>    Electricity, Coal,  Nuclear and Renewables Office Energy 
> Information Administration
> 1000 Independence Ave., SW   EI-34
> Washington, DC  20585
> (202) 586-1508 (W)
>  
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr

--
Jennifer M. Adams
Center for Ocean-Land-Atmosphere Studies (COLA)
111 Research Hall, Mail Stop 2B3
George Mason University
4400 University Drive
Fairfax, VA 22030 





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