creating a new file

raghu raghu at NCMRWF.GOV.IN
Thu Nov 30 23:27:39 EST 2006


Remove byteswapped

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---------- Original Message -----------
From: brian vant-hull <brianvanthull at YAHOO.COM>
To: GRADSUSR at LIST.CINECA.IT
Sent: Thu, 30 Nov 2006 08:03:10 -0800
Subject: Re: creating a new file

> It looks like the problem is with your data, not grads, and you
> actually don't have defined values in that particular time period
> and region.  Look at different times and places to convince yourself
> data does exist somewhere, and if not, go back to the MM5 and see
> what's wrong.
>
> Wajeeha Shafeeq <wajeeha.shafeeq at GCISC.ORG.PK> wrote:        Hi,
>  I am using MM5 output data.  I have to write a file on some
> particular lat/lon. For this I am  using the following script.
>  #####################################################
>  'open  mmoutjan05-3-01.ctl'
>  'set lon 70  80'
>  'set lat 32  38'
>  'set gxout  fwrite'
>  'set fwrite  humidity.dat'
>  t=1
>  while(t<=40)
>  'set t  't
>  'd  const(t,-9999,-u)'
>  t=t+1
>  endwhile
>  'disable  fwrite'
>  reinit
>  ####################################################
>  The ctl is as  follows:
>  #####################################################
>  dset  ^humidity.dat
>  byteswapped
>  title MM5  data
>  undef  -9999.
>  pdef 102 102 lcc 26.83  66.62 1.00 1.00 30.00 60.00 73.00 12000. 12000.
>  xdef 163 linear 70  0.0541
>  ydef 105 linear 32  0.0541
>  zdef 23 levels
>  0.99500
>  0.98500
>  0.97000
>  0.94500
>  0.91000
>  0.87000
>  0.82500
>  0.77500
>  0.72500
>  0.67500
>  0.62500
>  0.57500
>  0.52500
>  0.47500
>  0.42500
>  0.37500
>  0.32500
>  0.27500
>  0.22500
>  0.17500
>  0.12500
>  0.07500
>  0.02500
>  tdef 40 linear  06:00Z01JAN2005 360MN
>  vars 1
>  rh 23 99 rel humidity (%)
>  endvars
>  ###########################################################
>  The problem is when I open  the new file and displays its variable
> it give the following  error "Contouring: nan to nan  interval inf"
> I have made this ctl file  by changing the xdef and ydef values of
> the original MM5 ctl  file. Regards, Wajeeha  Shafeeq
>
> Brian Vant-Hull
> 301-646-1149
>
> ---------------------------------
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------- End of Original Message -------



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