<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span><br></span></div><div dir="ltr"><font face="Arial" size="2"><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 id="yiv202170101">
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<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="margin-bottom: 0cm; color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"></div><div style="margin-bottom: 0cm;"><br></div><style type="text/css"><!--
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<div style="margin-bottom:0cm;"><br></div><div style="margin-bottom:0cm;">This is the small script I am using for
that purpose:</div>
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</div><div style="margin-bottom:0cm;">'reinit'
</div>
<div style="margin-bottom:0cm;">'reset'
</div>
<div style="margin-bottom:0cm;">'sdfopen <a rel="nofollow" target="_blank" href="http://era.uq200.nc/">era.uq200.nc</a> '
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<div style="margin-bottom:0cm;">'sdfopen <a rel="nofollow" target="_blank" href="http://era.vq200.nc/">era.vq200.nc</a>'
</div>
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</div>
<div style="margin-bottom:0cm;">'set t 1 last'
</div>
<div style="margin-bottom:0cm;">'define diveuq= -(fish_div(u.1,v.2))'
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<div style="margin-bottom:0cm;">'define mconv=diveuq'
</div>
<div style="margin-bottom:0cm;">'set sdfwrite <a rel="nofollow" target="_blank" href="http://era.mconv.200.nc/">ERA.mconv.200.nc</a>'
</div>
<div style="margin-bottom:0cm;">'sdfwrite mconv'</div><div style="margin-bottom:0cm;"><br></div>"<a rel="nofollow" target="_blank" href="http://era.uq200.nc/">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><div style="margin-bottom:0cm;"><br></div><div style="margin-bottom:0cm;">
<br></div><div style="margin-bottom:0cm;">Arlindo <br></div>
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