<div>Daniele, thank you very very much for your message!</div> <div> </div> <div>I have created a Skew-T diagram using the script of Bob Hart and the ECMWF grid data. :-)</div> <div> </div> <div>The archive of ECMWF do not contain the dewpoin temperature and wind direction and I must calculate them.</div> <DIV id=result_box dir=ltr> </DIV> <DIV dir=ltr>But, how is calculated the wind direction? (clockwise? from nord?)</DIV> <div> </div> <div>Moreover, the moist adiabats are not drawn! :-(</div> <div> </div> <div>Bob Hart write:</div> <div> </div> <div><A href="http://moe.met.fsu.edu/~rhart/skewfaq.html#Q7">http://moe.met.fsu.edu/~rhart/skewfaq.html#Q7</A></div> <div> </div> <div>"<EM>Some versions of 1.6 and 1.7 had a bug that produced math errors when calculations were performed in scripts. The lastest beta version (1.7 beta 9) fixes the error</EM>" </div> <div> </div> <div>But I
use GrADS 1.8!</div> <div> </div> <DIV id=result_box dir=ltr>You can still help me?</DIV> <DIV dir=ltr> </DIV> <DIV dir=ltr>Thank you very much!</DIV> <DIV dir=ltr> </DIV> <DIV dir=ltr>Regards,</DIV> <DIV dir=ltr> </DIV> <DIV dir=ltr> Mario</DIV> <div> </div> <div> </div> <div> </div> <div><BR><BR><B><I>Daniele Gandini <Daniele.Gandini@ARPA.PIEMONTE.IT></I></B> ha scritto:</div> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"> <META content="MSHTML 6.00.2800.1555" name=GENERATOR> <STYLE></STYLE> <DIV><FONT face=Arial size=2>Hello Mario,</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>it is very simple.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>First you set on a lat-lon point and on all vertical levels:</FONT></DIV> <DIV><FONT
face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>'set lon 'lonp<BR>'set lat 'latp<BR>'set z 1 '_NLEV</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>then you run skew script written by Bob Hart that you can download from</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2><A href="http://moe.met.fsu.edu/~rhart/skew.html">http://moe.met.fsu.edu/~rhart/skew.html</A></FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV></BLOCKQUOTE><p> 
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