DESCRIPTION
i.albedo calculates the albedo, that is the Shortwave surface
reflectance in the range of 0.3-3 micro-meters. It takes as input
individual bands of surface reflectance originating from MODIS, AVHRR, Landsat
or Aster satellite sensors and calculates the albedo for those. This is
a precursor to r.sun and any energy-balance processing.
NOTES
It uses for Landsat 8 the weighted average reflectance (temporary until algorithm is found).
It assumes MODIS product surface reflectance in [0;10000].
TODO
Maybe change input requirement of MODIS to [0.0-1.0]?
SEE ALSO
r.sun,
i.vi
References
For a 2 band determination of the Aster BB Albedo see the following:
Salleh and Chan, 2014. Land Surface Albedo Determination: Remote Sensing and Statistical Validation. in proceedings of FIG 2014.
https://www.fig.net/resources/proceedings/fig_proceedings/fig2014/papers/ts05g/TS05G_salleh_chan_6910.pdf
AUTHOR
Yann Chemin
Last changed: $Date$