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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Serge,
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<div>Find documentation on the asum (areal sum) function. It should accept the arguments you need. </div>
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<div>Mason <br>
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<div id="divRpF993296" style="direction: ltr; "><font face="Tahoma" size="2" color="#000000"><b>From:</b> gradsusr-bounces@gradsusr.org [gradsusr-bounces@gradsusr.org] on behalf of Rafanoharana Serge Claudio [rafanoharana@gmail.com]<br>
<b>Sent:</b> Monday, September 26, 2011 4:46 AM<br>
<b>To:</b> GrADS Users Forum<br>
<b>Subject:</b> [gradsusr] How to get the Sum of variable (not spatially) for all region<br>
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<div>Dear all,<br>
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I have monthly data of one year. I used 'define new=sum(var,t=1,t=12)' then I obtain the sum of the spatial distribution for one year. This is more "in this point/coordinate, the annual precipitation is xxx mm"<br>
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But what I need is the total (sum) of the value of the variable. Something like: "In this area of 500km2, the annual precipitation is xxx mm".<br>
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Is it possible to obtain that?<br>
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Best regards<br clear="all">
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-- <br>
Serge<br>
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