<div dir="ltr"><div><br>Do you want tracing vertical velocity in Grads?<br><br></div>Use data...<br><br><br><a href="http://www.esrl.noaa.gov/psd/cgi-bin/db_search/DBSearch.pl?&Dataset=NCEP+Reanalysis+Pressure+Level&Dataset=NCEP+Reanalysis+Daily+Averages+Pressure+Level&Variable=Omega+%28dp/dt%29">http://www.esrl.noaa.gov/psd/cgi-bin/db_search/DBSearch.pl?&Dataset=NCEP+Reanalysis+Pressure+Level&Dataset=NCEP+Reanalysis+Daily+Averages+Pressure+Level&Variable=Omega+%28dp/dt%29</a><br>
<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">2013/12/11 Mostafa Karampoor <span dir="ltr"><<a href="mailto:mostafa_karampoor@yahoo.com" target="_blank">mostafa_karampoor@yahoo.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="font-size:12pt;font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,Sans-Serif"><div dir="ltr">
how calculate vertical velocity?</div></div></div><br>_______________________________________________<br>
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