[gradsusr] minimum pressure

[T. haghroosta]

Dear Jennifer Adams,
 
I used "amin" , "aminlocx", and "aminlocy", but unfortunately the grads says that the (expression "amin" ..... is not a variable or function)
 
I wrote this:
open E:\WRF\test.ctl
d amin(slp, lon=100, lon=130, lat=0, lat=15) 
 
Could you please lead me how to solve this problem?
Regards,
Mojy

 

> Message: 2
> Date: Wed, 15 Oct 2014 10:24:11 -0400
> From: Jennifer Adams <jma at cola.iges.org>
> Subject: Re: [gradsusr] minimum pressure
> To: GrADS Users Forum <gradsusr at gradsusr.org>
> Message-ID: <8B13D977-AF53-4C4F-BC3D-8BEF26C647A1 at cola.iges.org>
> Content-Type: text/plain; charset="windows-1252"
> 
> Try the amin() function: http://iges.org/grads/gadoc/gradfuncamin.html
> ?Jennifer
> 
> On Oct 15, 2014, at 10:00 AM, T. haghroosta <haghroosta at hotmail.com> wrote:
> 
> > Dear All,
> >  
> > Could you please lead me how to find the minimum value of pressure in an area in a special time? I mean I have a .ctl file and a .dat file from WRF model. I would like to find the place of minimum pressure in an area with grads. Can anyone help?
> >  
> > I am looking forward.
> > Regards,
> > Mojy 
> > _______________________________________________
> > 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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