[CF-metadata] Question about cell_methods

From: Jim Biard <jbiard>
Date: Thu, 26 Jun 2014 09:22:19 -0400

Hi.

I have a situation where there are multiple measurements within a 4D
lon/lat/z/t volume, for which a single value is produced by calculating
the weighted mean of all the measurements. This mean is of the form

(sum over i of wi * vi) / (sum over i of wi)

where wi is the inverse of the uncertainty in the measurement vi.

So how do I represent that within cell_methods? Would it be

lon lat z t: mean (uncertainty weighted)

or something else?

Grace and peace,

Jim

-- 
CICS-NC <http://www.cicsnc.org/> Visit us on
Facebook <http://www.facebook.com/cicsnc> 	*Jim Biard*
*Research Scholar*
Cooperative Institute for Climate and Satellites NC <http://cicsnc.org/>
North Carolina State University <http://ncsu.edu/>
NOAA's National Climatic Data Center <http://ncdc.noaa.gov/>
151 Patton Ave, Asheville, NC 28801
e: jbiard at cicsnc.org
o: +1 828 271 4900
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.cgd.ucar.edu/pipermail/cf-metadata/attachments/20140626/bd6bb2b9/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: agagcchc.png
Type: image/png
Size: 11847 bytes
Desc: not available
URL: <http://mailman.cgd.ucar.edu/pipermail/cf-metadata/attachments/20140626/bd6bb2b9/attachment-0001.png>

Received on Thu Jun 26 2014 - 07:22:19 BST