WCS and raw cell/pixel values

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08-19-2012 03:36 AM
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GraemeBrowning
Occasional Contributor III
I'm new to Web Coverage Services (WCS) but have found it easy to add one using ArcGIS for Desktop 10.1 and this service URL:

http://nsidc.org/cgi-bin/atlas_south?service=WCS&request=GetCapabilities&version=1.1.1

I add the service by Liu et al. and get the display below.

[ATTACH=CONFIG]17083[/ATTACH]

When I use Identify to look at the values for any cell on the grid/coverage all Stretched Values and Pixel Values are in the range 0-255.  I would expect to see 0-255 used for the Stretched Values but thought the Pixel Value would be holding raw data with values well in excess of 255.

When I export data from the WCS to a file geodatabase raster the values there are 0-255 too.

Is it possible to access the raw values held in a WCS?  (Hopefully I am just misunderstanding how to get my desired result)

- Graeme
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