<div>Hi Allen</div>
<div> </div>
<div>Does "lev" in the script means a fixed level value (e.g., 850, 700, 500 etc)?</div>
<div> </div>
<div>Thanks</div>
<div>Rashed<br><br></div>
<div class="gmail_quote">On Fri, Feb 11, 2011 at 9:53 PM, Teddy Allen <span dir="ltr"><<a href="mailto:teddyallen@yahoo.com">teddyallen@yahoo.com</a>></span> wrote:<br>
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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 <<a href="mailto:saiguranloi@yahoo.com" target="_blank">saiguranloi@yahoo.com</a>><br><b><span style="FONT-WEIGHT: bold">To:</span></b> GrADS Users <<a href="mailto:gradsusr@gradsusr.org" target="_blank">gradsusr@gradsusr.org</a>><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>
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<td valign="top">Hi,<br><br>I wanted to download a script that calculates moisture convergence from <a href="ftp://grads.iges.org/grads/scripts/mconv.gs" target="_blank">ftp://grads.iges.org/grads/scripts/mconv.gs</a>; 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></div></div>
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