Hello,<br>It is not a good idea to calculat moisture convergence,because <br><span id="result_box" class="" lang="en"><span class="hps">Beyond 500</span> <span class="hps">the</span> <span class="hps">humidity</span> <span class="hps">is</span> <span class="hps">very rare in</span> <span class="hps">the atmosphere</span><span>,</span> <span class="hps">and</span> <span class="hps">cloud</span> <span class="hps">systems</span> <span class="hps">using</span> <span class="hps">the</span> <span class="hps">existing</span> <span class="hps">moisture</span> <span class="hps">in the lower layers<br>
<br><br>Best regards<br><br>Rabah<br><br><br></span></span><div class="gmail_quote">2013/2/1 Arlindo Meque <span dir="ltr"><<a href="mailto:mequitomz@yahoo.com.br" target="_blank">mequitomz@yahoo.com.br</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="font-size:12pt;font-family:times new roman,new york,times,serif"><div><span><br></span></div><div dir="ltr">
<font face="Arial"><b><span style="font-weight:bold"></span></b><br> </font> </div><div style="font-family:times new roman,new york,times,serif;font-size:12pt"><div style="font-family:times new roman,new york,times,serif;font-size:12pt">
Dear all.<br><br><div>
<div style="margin-bottom:0cm">I'm trying to compute moisture
convergence at 200 hpa. I've successfully done the calculations for
850 and 500 hpa. But for 200 hpa I am getting a very strange output,
please see the attachment. <br></div><div style="font-style:normal;font-size:16px;background-color:transparent;margin-bottom:0cm;font-family:times new roman,new york,times,serif"></div><div style="margin-bottom:0cm"><br>
</div>
<div style="margin-bottom:0cm"><br></div><div style="margin-bottom:0cm">This is the small script I am using for
that purpose:</div>
<div style="margin-bottom:0cm"><br>
</div>
<div style="margin-bottom:0cm">
</div><div style="margin-bottom:0cm">'reinit'
</div>
<div style="margin-bottom:0cm">'reset'
</div>
<div style="margin-bottom:0cm">'sdfopen <a rel="nofollow" href="http://era.uq200.nc/" target="_blank">era.uq200.nc</a> '
</div>
<div style="margin-bottom:0cm">'sdfopen <a rel="nofollow" href="http://era.vq200.nc/" target="_blank">era.vq200.nc</a>'
</div>
<div style="margin-bottom:0cm">
</div>
<div style="margin-bottom:0cm">'set t 1 last'
</div>
<div style="margin-bottom:0cm">'define diveuq= -(fish_div(u.1,v.2))'
</div>
<div style="margin-bottom:0cm">'define mconv=diveuq'
</div>
<div style="margin-bottom:0cm">'set sdfwrite <a rel="nofollow" href="http://era.mconv.200.nc/" target="_blank">ERA.mconv.200.nc</a>'
</div>
<div style="margin-bottom:0cm">'sdfwrite mconv'</div><div style="margin-bottom:0cm"><br></div>"<a rel="nofollow" href="http://era.uq200.nc/" target="_blank">era.uq200.nc</a>" is a U wind component at
200 hpa level multiplied by the specific humidiry athe the same
level.<br><br><div style="margin-bottom:0cm">Any idea?</div><span class="HOEnZb"><font color="#888888"><div style="margin-bottom:0cm"><br></div><div style="margin-bottom:0cm">
<br></div><div style="margin-bottom:0cm">Arlindo <br></div>
</font></span></div><br><br> </div> </div> </div></div><br>_______________________________________________<br>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Cordialement,<br>Best regards,<br>Rabah Hachelaf <br><br> ____ <br> ( )<br> ( ) <br> (___ __) <br>
///////// <br><br>