<div class="gmail_quote">2009/7/1 Libin Yan <span dir="ltr"><<a href="mailto:zjuyanlibin@163.com">zjuyanlibin@163.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div style="margin:10px;font-family:verdana;font-size:10pt">
<div><font color="#000080" size="2" face="Verdana">d
no2(z=1)+no2(z=2)+...</font></div>
<div><font color="#000080" size="2" face="Verdana"></font> </div></div></blockquote><div>If "no2" is mixing ratio then typically you have to multiply the integrand by rho dz = dp/g, where "dp" is the pressure thickness of each layer, g ~ 9.81. </div>
<div><br></div><div> Arlindo<br></div><div><br></div></div><br>-- <br>Arlindo da Silva<br><a href="mailto:dasilva@alum.mit.edu">dasilva@alum.mit.edu</a><br>