Kevin,<br>You are going to have to compute the parcel path yourself using the standard formulas for the dry and moist adiabatic lapse rates unless someone has a script that already does that.<br><br>Recall that the dry adiabatic lapse rate is g/Cp (Cp = 1004 or 1005 J/kg/K) or use the fact that T1 = T2*(P1/P2)^(Rd/Cp) for parcel temperatures T1 and T2 at pressure levels P1 and P2 (Rd = 287.05 J/kg/K). The moist adiabatic lapse rate is a much more complicated formula, but you can find it in various places including the AMS glossary, linked here: <a href="http://amsglossary.allenpress.com/glossary/search?id=moist-adiabatic-lapse-rate1">http://amsglossary.allenpress.com/glossary/search?id=moist-adiabatic-lapse-rate1</a>)<br>
<br>Jeff<br><br><div class="gmail_quote">On Tue, Mar 8, 2011 at 9:33 AM, Info Severeweather <span dir="ltr"><<a href="mailto:info@severeweather.nl">info@severeweather.nl</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div link="blue" vlink="purple" lang="NL"><div><p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);" lang="EN-US">Thanks for your reaction, its for calculating the CAP with this formula: </span><span lang="EN-US"> Environmental temperature - parcel temperature (both in region with max temperature difference)</span><span style="font-size: 11pt; color: rgb(31, 73, 125);" lang="EN-US"></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);" lang="EN-US">And it is in the pbl yes!</span></p><p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);" lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);" lang="EN-US">Regards,</span></p><p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);" lang="EN-US">Kevin</span></p><div style="border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; padding: 3pt 0cm 0cm;">
<p class="MsoNormal"><b><span style="font-size: 10pt;">Van:</span></b><span style="font-size: 10pt;"> <a href="mailto:gradsusr-bounces@gradsusr.org" target="_blank">gradsusr-bounces@gradsusr.org</a> [mailto:<a href="mailto:gradsusr-bounces@gradsusr.org" target="_blank">gradsusr-bounces@gradsusr.org</a>] <b>Namens </b>Jeffrey Duda<br>
<b>Verzonden:</b> dinsdag 8 maart 2011 16:11<br><b>Aan:</b> GrADS Users Forum<br><b>Onderwerp:</b> Re: [gradsusr] Parcel temperature</span></p></div><div><div></div><div class="h5"><p class="MsoNormal"> </p><p class="MsoNormal" style="margin-bottom: 12pt;">
Kevin,<br>Do you mean a surface parcel or just the temperature at the PBL top?<br><br>Jeff Duda</p><div><p class="MsoNormal">On Tue, Mar 8, 2011 at 6:55 AM, Info Severeweather <<a href="mailto:info@severeweather.nl" target="_blank">info@severeweather.nl</a>> wrote:</p>
<div><div><p class="MsoNormal">Hello,</p><p class="MsoNormal"> </p><p class="MsoNormal"><span lang="EN-US">First of all thanks for the reply of the fullscreen plot it works perfect!</span></p><p class="MsoNormal"><span lang="EN-US">Now I have a question of someone has some tips to calculate the parcel temperature around PBL.<br>
now just found the parameter to get the pbl height with hpblsfc, so can someone help me?</span></p><p class="MsoNormal"><span lang="EN-US"> </span></p><p class="MsoNormal"><span lang="EN-US">Thanks in advanced!</span></p>
<p class="MsoNormal"><span lang="EN-US">Kevin</span></p></div></div><p class="MsoNormal" style="margin-bottom: 12pt;"><br>_______________________________________________<br>gradsusr mailing list<br><a href="mailto:gradsusr@gradsusr.org" target="_blank">gradsusr@gradsusr.org</a><br>
<a href="http://gradsusr.org/mailman/listinfo/gradsusr" target="_blank">http://gradsusr.org/mailman/listinfo/gradsusr</a></p></div><p class="MsoNormal"><br><br clear="all"><br>-- <br>Jeff Duda<br>Iowa State University<br>
Meteorology Graduate Student<br>3134 Agronomy Hall<br><a href="http://www.meteor.iastate.edu/%7Ejdduda" target="_blank">www.meteor.iastate.edu/~jdduda</a></p></div></div></div></div><br>_______________________________________________<br>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Jeff Duda<br>Iowa State University<br>Meteorology Graduate Student<br>3134 Agronomy Hall<br><a href="http://www.meteor.iastate.edu/~jdduda">www.meteor.iastate.edu/~jdduda</a><br>