NAME
i.emissivity - Computes emissivity from NDVI, generic method for spares land.
KEYWORDS
emissivity, land flux, energy balance
SYNOPSIS
i.emissivity
i.emissivity help
i.emissivity input=name output=name [--overwrite] [--verbose] [--quiet]
Flags:
- --overwrite
- Allow output files to overwrite existing files
- --verbose
- Verbose module output
- --quiet
- Quiet module output
Parameters:
- input=name
- Name of the NDVI map [-]
- output=name
- Name of the output emissivity layer
DESCRIPTION
i.emissivity calculates the emissivity in the longwave radiation spectrum, according to the semi-empirical equation related to NDVI by Caselles and Colles (1997), valid in the NDVI range of 0.16 to 0.74.
Estimation in the 8-14 micrometers range for sparse canopy
NOTES
TODO
SEE ALSO
i.eb.netrad
AUTHORS
Yann Chemin, GRASS Development Team
Last changed: $Date: 2007/03/29 22:19:55 $
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