problem trying to plot TRMM data

[raghu]

3B42RT is simple GrADS binary data and you can just use gradsc instead of
gradsnc to make the plots. Remember to use options template while
accessing multiple data files from one single .ctl file.

Hope this helps

cheers

raghu
--


---------- Original Message -----------
From: Nelsie Ramos <nelsieramos1 at YAHOO.COM>
To: GRADSUSR at LIST.CINECA.IT
Sent: Sun, 11 Dec 2005 18:14:11 -0800
Subject: problem trying to plot TRMM data

> Hello, people
>
>   I am trying to plot the 3B42RT.ctl TRMM data in gradsnc but I am
> getting an error that says the entire grid is un defined.  This is
> what I did:
>
>   1. Download all the data for the dates needed
>
>   i.e 3B42RT.2004080800.bin  3B42RT.2004081009.bin  3B42RT.2004081303.bin
> 3B42RT.2004080803.bin  3B42RT.2004081015.bin  3B42RT.2004081306.bin
>
>   2. Place that data in a separate file together with the 3B42RT.ctl
>
>   3. Now in gradsnc:
>
>        ga-> open 3B42RT.ctl
> Scanning description file:  3B42RT.ctl
> Data file 3B42RT.%y4.%m2.%d2.%h2z.bin is open as file 1
> LON set to 0 360
> LAT set to -59.875 59.875
> LEV set to 1000 1000
> Time values set: 2003:8:8:0 2003:8:8:0
> ga-> set t 2937
> Time values set: 2004:8:9:0 2004:8:9:0
> ga-> set lat 0.0071 25.3541
> LAT set to 0.0071 25.3541
> ga-> set lon -45.5496 15.553
> LON set to -45.5496 15.553
> ga-> d r
> Cannot contour grid - all undefined values
>
>   How can I plot the binary data that I need?
>
>   Thanks for the help
>
>   Nelsie
>
> ---------------------------------
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------- End of Original Message -------