<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hey Erick,<div class="">if you need to integrate over a certain depth I believe you can write the function yourself. I did something similar in one of my scripts:</div><div class=""><br class=""></div><div class=""><font face="Menlo" style="font-size: 11px;" class="">;;;; first compute the pressure layers thicknesses ;;;</font></div><div class=""><div class=""><font face="Menlo" style="font-size: 11px;" class=""> dp=new(dim sizes(height),typeof(p))</font></div><div class=""><font face="Menlo" style="font-size: 11px;" class=""> do i=0,dimsizes(time)-1</font></div><div class=""><font face="Menlo" style="font-size: 11px;" class=""> dp(i,:)=dpres_plevel(p(i,:),pres_sfc(i),p(i,0),0)</font></div><div class=""><font face="Menlo" style="font-size: 11px;" class=""> end do</font></div><div class=""><font face="Menlo" style="font-size: 11px;" class=""><br class=""></font></div><div class=""><font face="Menlo" style="font-size: 11px;" class="">; then compute the integral by summing the contribution of every layer</font></div><div class=""><font face="Menlo" style="font-size: 11px;" class="">; note that NCL does the sum without looping, so everything should be fast</font></div><div class=""><font face="Menlo" style="font-size: 11px;" class="">; also with big arrays</font></div><div class=""><div class=""><font face="Menlo" style="font-size: 11px;" class="">var_int=dim_sum_n(var*dp, 1)/g</font></div></div><div class=""><br class=""></div><div class="">I was using domain-averaged data, so with coordinates (time,z) but you can easily adapt the script for 2D (lat,lon) data. </div><div class="">Cheers</div><div class="">
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<br class=""><div><blockquote type="cite" class=""><div class="">On 11 Jun 2016, at 03:36, Erick Gordon <<a href="mailto:erick.gordon24@gmail.com" class="">erick.gordon24@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="">Hi</div><div class="">I need to know how I can calculate the integral of a variable in NCL. In the case of wgt_vertical_n function will only be available from version 6.4.0 and later. For example, I need to integrate the divergence of moisture flux from 1000 to 500 hPa. If anyone can help me I would be grateful</div><div class="">Thank you very much</div></div>
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