[gradsusr] saving more than one variable in one file

[Ricardo Hallak]

Hi Mubashar,

when you display in the GrADS prompt (without saving it using fwrite):

'set x 1'
'set y 1'
'set t 1 60'
'd aave(temp,lon=-150,lon=-90,lat=-5,lat=5)'

your result seems ok?
Is it different from that that you display after using fwrite?

Ricardo

On Wed, 26 Sep 2012 10:57:54 +0300, Mubashar Dogar wrote
> Hi  Sujata,
> 
> It's not the issue of tdef. It doesn't make any difference.
> 
> Thanks,
> Mubashar
> 
> On 9/26/12, Sujata Mandke <amin at tropmet.res.in> wrote:
> > Hello!
> >
> >    If you want to write time series of both the variables
> >    of 60 times each, then in the ctl file to open
> >    newly created data, make following changes:
> >
> >> tdef 103 linear jan1900 1yr
> >
> >   change to
> >   tdef 60 linear jan1900 1yr
> >
> >   With this change both variables are defined
> >   for time series of 60 times each.
> >   Hope this will match newly created variable with
> >   that from original data.
> > Regards
> > Sujata Mandke
> > Indian Institute of Tropical Meteorology
> > Pune,India.
> > -------------------------
> >
> > ----- Original Message -----
> > From: Jennifer Adams <jma at cola.iges.org>
> > To: GrADS Users Forum <gradsusr at gradsusr.org>
> > Sent: Tue, 25 Sep 2012 20:54:49 +0530 (IST)
> > Subject: Re: [gradsusr] saving more than one variable in one file
> >
> > Use the -ap flag with 'set fwrite' to append to an existing file. Also, it
> > is not necessary to define N3 and N4 before displaying them -- why waste the
> > memory? Simply change your 'define' to a 'd' and then you can remove the two
> > 'd N3' and 'd N4' lines.
> > --Jennifer
> >
> >
> > On Sep 25, 2012, at 5:20 AM, Mubashar Dogar wrote:
> >
> >> Dear GrADS users,
> >>
> >> I have 2 spatial variables in one file. I wanted to do some operation
> >> on each one and wanted to save 2 new variables in a new GrADS file. I
> >> am doing some thing as given below:
> >>
> >> 'open File.ctl'
> >> 'set gxout fwrite'
> >> 'set fwrite NEW_FILE.dat'
> >> t=1                       ********************T=1 is Jan1900 and it is
> >> monthly data
> >> tmax=60
> >> while (t<=tmax)
> >> 'set t 't
> >> 'define N3=aave(temp,lon=-150,lon=-90,lat=-5,lat=5)'
> >> 'define N4=aave(temp,lon=160,lon=210,lat=-5,lat=5)'
> >> 'd N3'
> >> 'd N4'
> >> t=t+1
> >> endwhile
> >> 'disable fwrite'
> >> ********************************
> >> As the new variables are a 1-D time series, so my ctl file to open
> >> newly written data file is as:
> >>
> >> dset NEW_FILE.dat
> >> title N3 and N4 indices
> >> undef -9.99e+08
> >> xdef 1 linear 1 1
> >> ydef 1 linear 1 1
> >> zdef 1 linear 1 1
> >> tdef 103 linear jan1900 1yr
> >> vars 2
> >> N3   0 99  N3 variable
> >> N4   0 99  N4 variable
> >> endvars
> >>
> >> It works fine but it looks that the values of both variables are not
> >> representing to original values. How can I work with two or more
> >> variables in one file?
> >>
> >> Thanks,
> >>
> >> Mubashar
> >> _______________________________________________
> >> gradsusr mailing list
> >> gradsusr at gradsusr.org
> >> http://gradsusr.org/mailman/listinfo/gradsusr
> >
> > --
> > Jennifer M. Adams
> > IGES/COLA
> > 4041 Powder Mill Road, Suite 302
> > Calverton, MD 20705
> > jma at cola.iges.org
> >
> >
> >
> >
> > _______________________________________________
> > gradsusr mailing list
> > gradsusr at gradsusr.org
> > http://gradsusr.org/mailman/listinfo/gradsusr
> >
> 
> -- 
> Muhammad Mubashar Ahmad Dogar
> Scientific Officer (Climatology Section),
> Global Change Impact Studies Centre (GCISC),
> NCP complex, Quaid-e-Azam University Campus,
> Shahdra road, Islamabad, Pakistan.
> Tel:  +92519230226
> Mob:+923315144169
> email: mubashardogar at yahoo.com
>           mubashar.ahmad at gcisc.org.pk
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr


Ricardo Hallak

Departamento de Ciências Atmosféricas (ACA)
Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG)
Universidade de São Paulo (USP)
Rua do Matão, 1226 - Cidade Universitária - São Paulo SP 05508-900
Phone.: +55 (11) 3091-2850; 3091-4703
Fax: +55 (11) 3091-4714