[gradsusr] Opening a Grb2 File

[Eric Altshuler]

Hi Ethan, 


The g2ctl is a perl script, not a grads command. You have to run it from the shell command line, not inside grads. 


Best regards, 


Eric L. Altshuler 
Research Scientist 
Center for Ocean-Land-Atmosphere Studies 
253 Research Hall, Mail Stop 6C5 
George Mason University 
4400 University Drive 
Fairfax, VA 22030 USA 

E-mail: ela at cola.iges.org 
Phone: (703) 993-5725 
Fax: (703) 993-5770 

----- Original Message -----
From: "Ethan Sacoransky" <ethan.saco at me.com> 
To: "GrADS Users Forum" <gradsusr at gradsusr.org> 
Sent: Thursday, January 16, 2014 6:50:55 PM 
Subject: Re: [gradsusr] Opening a Grb2 File 

Hi Aaron, 
I am attempting to carry out this process by typing in 'g2ctl gfs_4_20140112_1200_009.grb2 > gfs_4_20140112_1200_009.ctl'. I got an error saying 'unknown command: g2ctl'. Any thoughts on this? Thanks so much. 

Ethan 

On 2014-01-16, at 6:39 PM, Perry, Aaron @ LSC wrote: 

> Hi Ethan, 
> 
> In order to open a grib2 file in GrADS, a control (.ctl) and an index (.idx) file must exist. 
> 
> To create a .ctl file with g2ctl, use this command in your terminal: 
> 
> g2ctl grib2_file.grb2 > grib2_file.ctl 
> 
> Then to create the .idx file with gribmap, use this command: 
> 
> gribmap -i grib2_file.ctl 
> 
> 
> Onward and Upward, 
> 
> Aaron D. Perry 
> Boston, MA 
> Lyndon State College '16 
> Twitter: @AaronPerryLSC 
> Mobile: 617-780-4312 
> 
> ________________________________________ 
> From: gradsusr-bounces at gradsusr.org [gradsusr-bounces at gradsusr.org] on behalf of Ethan Sacoransky [ethan.saco at me.com] 
> Sent: Thursday, January 16, 2014 6:23 PM 
> To: gradsusr at gradsusr.org 
> Subject: [gradsusr] Opening a Grb2 File 
> 
> Good evening everyone, 
> 
> In an attempt to open up a grib2 file, I have downloaded and unpacked the wgrib2 tar file and copied the g2ctl script onto a text edit file. When I type in the command 'run g2ctl gfs_4_20140112_1200_009.grb2' I get the prompt, "error opening script file: g2ctl". Any thoughts on why this would be? 
> 
> Ethan 
> 
> 
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