<div dir="ltr"><div><div><div>For future MERRA related questions (not grads questions), there is a mailing list maintained, to which most questions are answered promptly during normal business hours (on the East Coast US). <a href="mailto:merra-questions@lists.nasa.gov">merra-questions@lists.nasa.gov</a> <br>
<br>However, before mailing this list, there is a substantial amount of MERRA related information at the following sites:<br></div><div><a href="http://gmao.gsfc.nasa.gov/merra">http://gmao.gsfc.nasa.gov/merra</a><br><a href="http://disc.sci.gsfc.nasa.gov/mdisc/">http://disc.sci.gsfc.nasa.gov/mdisc/</a><br>
</div><div><a href="http://reanalysis.org/">http://reanalysis.org/</a><br><a href="http://journals.ametsoc.org/page/MERRA">http://journals.ametsoc.org/page/MERRA</a><br><br></div><div>and even some grads related reanalysis tools: <a href="http://cookbooks.opengrads.org/index.php?title=Table_of_Contents">http://cookbooks.opengrads.org/index.php?title=Table_of_Contents</a><br>
</div><div><br><br>Q1: Yes. Precipitation is available, but as with any reanalysis significant uncertainty exists in model derived reanalysis fields. In order to determine MERRA variables, and their file collections, one must use the MERRA File Specification Document: <a href="http://gmao.gsfc.nasa.gov/research/merra/file_specifications.php">http://gmao.gsfc.nasa.gov/research/merra/file_specifications.php</a>.<br>
<br></div>Q2: No. We don't recommend sharing hard links to data, in the case that servers change. It is far better to go to the GES DISC main pages: <a href="http://disc.sci.gsfc.nasa.gov/mdisc/">http://disc.sci.gsfc.nasa.gov/mdisc/</a><br>
<br></div>From there. there is a link to "MERRA data products" to which one can find several ways to access any variable. If only one variable or a few are needed, we strongly recommend the data subsetter, which speeds data transfer by tailoring the download by space, time, level and variable subsetting, and also has some limited time averaging capability (daily averages from the hourly data). In addition, one may choose netcdf or hdf format from the subsetter.<br>
<br></div>I hope this information is useful,<br><br>Mike<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Apr 15, 2013 at 7:26 AM, avi kojokro <span dir="ltr"><<a href="mailto:kojokroavi@gmail.com" target="_blank">kojokroavi@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="rtl"><div dir="ltr" style="text-align:left"><span lang="en"><span>Does anyone know if</span></span><span lang="en"><span><span lang="en"><span> there is</span> </span></span></span><span lang="en"><span>Precipitation</span></span><span lang="en"><span><span lang="en"><span></span> <span>data</span> <span>on</span> <span>merra reanalysis </span></span>?.</span></span><br>
<span lang="en"><span>If there is</span><span>,</span> <span>can anyone give</span> <span>the link to</span> <span>the server</span> <span>from which</span> <span>I can</span> <span>download</span> <span>this data</span><span>?</span><span>.</span><br>
<br><span>Thank you</span><br><br><span>Regards</span></span><span class="HOEnZb"><font color="#888888"><br></font></span></div><span class="HOEnZb"><font color="#888888"><div dir="ltr" style="text-align:left">avi.<br></div>
<div dir="ltr" style="text-align:left"><span lang="en"><span><span lang="en"><span></span></span>
</span></span></div></font></span></div>
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