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<P>* This is a script for displaying moisture convergence </P>
<P>* Written by Michael Maxwell </P>
<P>*</P>
<P>* rh = Relative Humidity in % </P>
<P>* t = Temp at *set level in degrees Kelvin</P>
<P>* tc = Temp in degrees C</P>
<P>* td = Dewpoint at *set level in degrees C</P>
<P>* e = Vapor pressure </P>
<P>* mixr = Mixing ratio</P>
<P>* u = U-wind in m/s</P>
<P>* v = V-wind in m/s</P>
<P>* mconv = moisture convergence/divergence. convergence is positive and divergence is negative.</P>
<P>'tc = (t-273.16)'</P>
<P>'td = tc-((14.55+0.114*tc)*(1-0.01*rh) + pow((2.5+0.007*tc)*(1-0.01*rh),3) + (15.9+0.117*tc)*pow((1-0.01*rh),14))'</P>
<P>'vapr = 6.112*exp((17.67*td)/(td+243.5))'</P>
<P>'e = vapr*1.001+(lev-100)/900*0.0034'</P>
<P>'mixr = 0.62197*(e/(lev-e))*1000'</P>
<P>'mconv = (-1)*hdivg(u*mixr,v*mixr)*1e4'</P>
<P>'d mconv'</P></SPAN><BR> </DIV>
<P><A href="http://www.teddyallen.com/" rel=nofollow target=_blank>http://www.teddyallen.com</A></P>
<P>"To move quickly, go alone. To move far, go <FONT color=#ff0000><EM><STRONG>together</STRONG></EM></FONT>." </P>
<P>African Proverb</P>
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<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> saiguran loisulie <saiguranloi@yahoo.com><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> GrADS Users <gradsusr@gradsusr.org><BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Fri, February 11, 2011 8:40:51 AM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> [gradsusr] A GrADS scripts that calculates moisture convergence<BR></FONT><BR>
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<TD vAlign=top>Hi,<BR><BR>I wanted to download a script that calculates moisture convergence from ftp://grads.iges.org/grads/scripts/mconv.gs; but I failed due to access restrictions imposed here.<BR><BR>Can someone email me this script or the similar or better one? I need it to analyse my data to study moisture dynamics.<BR><BR>Thank you in advance for your cordial help.<BR><BR>Saiguran Loisulie<BR>Climate Systems Analysis Group<BR>Environmental and Geographical Science Department<BR>University of Cape Town<BR>Private Bag X3<BR>Rondebosch<BR>7701 <BR>SOUTH AFRICA<BR><BR>CELL 0748 068 230</TD></TR></TBODY></TABLE><BR></DIV></DIV></div><br>
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