[GRASS-user] i.atcorr for GeoEye-1 and Worldview-3
nik at nikosalexandris.net
Fri Jun 5 02:00:38 PDT 2015
* Nick Ves <vesnikos at gmail.com> [2015-06-05 11:44:18 +0300]:
> Take note for WV3  digital globe states that
> WorldView-3 addresses this problem by being the first commercial imaging
> satellite with an atmospheric sensor as part of its payload. During image
> capture, the WorldView-3 atmospheric sensor is designed to detect the
> presence of clouds, aerosols and water vapor at 31 meter resolution,
> thereby measuring the exact atmospheric conditions corresponding to every
> recorded image [...].
> *DigitalGlobe has developed proprietary algorithms that use these
> atmospheric measurements to normalize WorldView-3 imagery for consistency*.
> This normalization is called atmospheric compensation, which is especially
> important for information extraction, such as change detection and
> vegetation analysis because changes
> *due to the atmosphere have been removed*.
> Which seems to imply that their (of-the-shelf) products are already
> cleaned from any atmospheric artistic.
> Further confirmation on that would I think is needed.
Or, maybe it's simply still "new" and calibration wroks are still
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