Dear Subash, <br><br>I work with TRMM data, I preferred to work with xconv, I convert every single file to a grib file, then you can merge them as a single file and calculate averages and so on (it is also possible to reconvert them to netcdf format).<br>
<br>Regards<br>Luis<br><br><br><div class="gmail_quote">On Tue, Feb 1, 2011 at 1:22 AM, Subash Yeggina <span dir="ltr"><<a href="mailto:subash.yeggina@gmail.com">subash.yeggina@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Hi! Teddy,<br><br>Thanks for the quick response.<br><br>I actually have downloaded NetCDF files from NASA site: (<a href="http://mirador.gsfc.nasa.gov/" target="_blank">http://mirador.gsfc.nasa.gov/</a>) for 5 years (both daily and 3 hrs). I tried displaying for 1 day and it works fine. How do 1 do it for 1 year. For example : Displaying the average of 5 years precipitation of my region ?<br>
<br><br><div class="gmail_quote"><div><div></div><div class="h5">On Tue, Feb 1, 2011 at 1:16 AM, Teddy Allen <span dir="ltr"><<a href="mailto:teddyallen@yahoo.com" target="_blank">teddyallen@yahoo.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div><div></div><div class="h5">
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<div>You can easily retrieve TRMM data in a netcdf format from the IRI data library so that it is easily read into grads. </div>
<div>Go to: <a href="http://iridl.ldeo.columbia.edu/SOURCES/.NASA/.GES-DAAC/.TRMM_L3/.TRMM_3B42/.v6/.daily/.precipitation/" target="_blank">http://iridl.ldeo.columbia.edu/SOURCES/.NASA/.GES-DAAC/.TRMM_L3/.TRMM_3B42/.v6/.daily/.precipitation/</a></div>
<div>From there you can subset your data (click on data selection link) then download into NetCDF (data files selection link). Or you can even access the OpenDAP link as well.</div>
<div> </div>
<div>Once you have this TRMM NetCDF file you can then easily ingest into GrADS through:</div>
<div>'sdfopen filepath/<a href="http://filename.nc" target="_blank">filename.nc</a>'</div>
<div>'d precip'</div>
<div> </div>
<div>hope this helps,</div>
<div>teddy </div>
<div> </div>
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<b><span style="font-weight: bold;">From:</span></b> Subash Yeggina <<a href="mailto:subash.yeggina@gmail.com" target="_blank">subash.yeggina@gmail.com</a>><br><b><span style="font-weight: bold;">To:</span></b> <a href="mailto:gradsusr@gradsusr.org" target="_blank">gradsusr@gradsusr.org</a><br>
<b><span style="font-weight: bold;">Sent:</span></b> Mon, January 31, 2011 2:31:57 PM<br><b><span style="font-weight: bold;">Subject:</span></b> [gradsusr] Few basic questions on processing of TRMM data in GrADS<br></font><div>
<div></div><div><br>Hi! All,
<div><br></div>
<div>I am a beginner in using GrADS to process TRMM data. The question I have are:</div>
<div><br></div>
<div>(1) To process TRMM (3B42 daily and 3hr) data for a period of 5 years. Do I need to write a script or a template control file(.ctl) is to be created?</div>
<div>(2) Are there any tutorials available in using GrADS for TRMM data?</div>
<div><br></div>
<div><br></div>
<div>Thanks and Regards,</div>
<div>Subash Yeggina</div>
<div>Research Scholar,</div>
<div>Dept of Civil Engg.</div>
<div>IISc.</div></div></div></div></div></div><br>
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