Dear Adam,
Thank you for your instructions! I will try this.
Regards,
Lifen
2013-04-23 
Jiang, Lifen 
发件人: Adam Phillips 
发送时间: 2013-04-23  10:23:18 
收件人: ncl-talk@ucar.edu 
抄送: 
主题: Re: [ncl-talk] How to calculate the global total 
 
Hi Lifen,
If you go to the NCL functions page here:
http://www.ncl.ucar.edu/Document/Functions/list_alpha.shtml
and search on the page for "sum" you will eventually see wgt_areasum2:
http://www.ncl.ucar.edu/Document/Functions/Built-in/wgt_areasum2.shtml
(See example #2.)
That function should do what you want. If you have any further questions please respond to ncl-talk.
Adam
On 04/22/2013 11:27 AM, Jiang, Lifen wrote:
Hi NCL-TALK members,
 
I have a data file of carbon in living plants with two dimensions (lat and lon). It is global distribution data with the resolution of 1°×1° and the unit is kg/m2.
 
Now I need to calculate the global total. 
 
Does NCL have this kind of functions?
 
Thank you for your time!
 
Lifen 
 
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Adam Phillips                                asphilli@ucar.edu
NCAR/Climate and Global Dynamics Division       (303) 497-1726    
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Boulder, CO 80307-3000    http://www.cgd.ucar.edu/cas/asphilli
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Received on Tue Apr 23 13:27:44 2013
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