[gradsusr] 24hrs Accumulated TRMM Rainfall

[Subash Yeggina]

Hi! Sravan

Another way would be to create a ".ctl" file using template.  The contents
of .ctl file is shown below..

dset ^3B42.%y2%m2%d2.%h2z.bin
title TRMM Global daily total rainfall
undef    -9999.0
options big_endian template
xdef 1440 linear  0.125   0.250
ydef  400 linear   -49.875   0.250
zdef 1 linear 1 1
tdef   9  linear 00z04Jan2011 3hr
vars  1
r 0 99 3 hourly rain rate (mm)
endvars


Regards,
Subash


On Thu, Feb 17, 2011 at 8:04 PM, Teddy Allen <teddyallen at yahoo.com> wrote:

> I suppose the long method would involve opening them all up through unique
> ctl files (different variable name for each file, ex: r1,r2,r3,etc...). Then
> in GrADS simply define a new variable , rTOT = r1 + r2.2 + r3.3.....   ,
> then d rTOT
>
> I am sure that there is a better or more streamlined approach, but this
> cavalier method should work.
>
>
> http://www.teddyallen.com
>
> "To move quickly, go alone. To move far, go *together*."
>
> African Proverb
>
>
>  ------------------------------
> *From:* Sravan <sravan_sase at yahoo.in>
> *To:* grads <gradsusr at gradsusr.org>
> *Sent:* Thu, February 17, 2011 5:46:45 AM
> *Subject:* [gradsusr] 24hrs Accumulated TRMM Rainfall
>
>  Dear GrADS Users,
> I want to plot 24hrs accumulated rainfall from the following files which i
> have downloaded from FTP site.
> 3B42RT.2011.01.14.00z.bin<ftp://disc2.nascom.nasa.gov/data/TRMM/Gridded/3B42RT/201101/3B42RT.2011.01.14.00z.bin>
> 3B42RT.2011.01.14.03z.bin<ftp://disc2.nascom.nasa.gov/data/TRMM/Gridded/3B42RT/201101/3B42RT.2011.01.14.00z.bin>
> 3B42RT.2011.01.14.06z.bin<ftp://disc2.nascom.nasa.gov/data/TRMM/Gridded/3B42RT/201101/3B42RT.2011.01.14.00z.bin>
> 3B42RT.2011.01.14.09z.bin<ftp://disc2.nascom.nasa.gov/data/TRMM/Gridded/3B42RT/201101/3B42RT.2011.01.14.00z.bin>
> 3B42RT.2011.01.14.12z.bin<ftp://disc2.nascom.nasa.gov/data/TRMM/Gridded/3B42RT/201101/3B42RT.2011.01.14.00z.bin>
> 3B42RT.2011.01.14.15z.bin<ftp://disc2.nascom.nasa.gov/data/TRMM/Gridded/3B42RT/201101/3B42RT.2011.01.14.00z.bin>
> 3B42RT.2011.01.14.18z.bin<ftp://disc2.nascom.nasa.gov/data/TRMM/Gridded/3B42RT/201101/3B42RT.2011.01.14.00z.bin>
> 3B42RT.2011.01.14.21z.bin<ftp://disc2.nascom.nasa.gov/data/TRMM/Gridded/3B42RT/201101/3B42RT.2011.01.14.00z.bin>
> 3B42RT.2011.01.15.00z.bin<ftp://disc2.nascom.nasa.gov/data/TRMM/Gridded/3B42RT/201101/3B42RT.2011.01.14.00z.bin>
>
>
> Provided 3B42RT.CTL
>
> dset 3B42RT.2011.01.14.00z<ftp://disc2.nascom.nasa.gov/data/TRMM/Gridded/3B42RT/201101/3B42RT.2011.01.14.00z.bin>
> .bin
>
> options byteswapped
>
> title Three Hourly TRMM and Other Satellite Rainfall (3B42RT)
>
> undef -99999.0
>
> xdef 1440 linear 0.12500000 0.25000000
>
> ydef 480 linear -59.8750000 0.25000000
>
> zdef 1 levels 1000
>
> tdef 9 inear 00:00Z14jan2011 3hr
>
> * end_time 12:00Z16feb2011 (this_is_comment_line)
>
> vars 1
>
> r 0 99 Hourly Rainfall (mm)
>
> endvars
>
>
>
> What can be done to find out 24hrs accumulated rainfall?
>
>
>
> Hope for the best reply.
>
>
>
> Regards
>
> Sravan
>
>
>
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>
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