Andreas,
The coordinate bounds concept can cover this situation. See Section 7.1 of
the CF Conventions
document<
http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.6/cf-conventions.html#cell-boundaries>
and
read the bit about 2D coordinates with 4-sided cells.
Grace and peace,
Jim
On Wed, Mar 20, 2013 at 5:50 PM, Andreas Hilboll <lists at hilboll.de> wrote:
> I was wondering if it is possible to describe the pixel geometry of
> satellite measurements in CF. In atmospheric trace gas remote sensing,
> an individual measurement's location is often described by the center
> point's lat/lon coordinates plus the four pixel corner points' lat/lon
> coordinates. One measurement's location is thus described by a total of
> five lat/lon points.
>
> If it were only the center point, then I would know how to use a
> "discrete sampling geometry" with a "trajectory" feature.
>
> How can I describe the four corner points?
>
> Cheers, Andreas.
> _______________________________________________
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>
--
Jim Biard
Research Scholar
Cooperative Institute for Climate and Satellites
Remote Sensing and Applications Division
National Climatic Data Center
151 Patton Ave, Asheville, NC 28801-5001
jim.biard at noaa.gov
828-271-4900
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