NAME
i.eb.soilheatflux - Soil heat flux approximation (Bastiaanssen, 1995).
KEYWORDS
imagery, energy balance, soil heat flux, SEBAL
SYNOPSIS
i.eb.soilheatflux
i.eb.soilheatflux help
i.eb.soilheatflux [-r] albedo=name ndvi=name temperature=name netradiation=name localutctime=name output=name [--overwrite] [--verbose] [--quiet]
Flags:
- -r
- HAPEX-Sahel empirical correction (Roerink, 1995)
- --overwrite
- Allow output files to overwrite existing files
- --verbose
- Verbose module output
- --quiet
- Quiet module output
Parameters:
- albedo=name [required]
- Name of Albedo raster map [0.0;1.0]
- ndvi=name [required]
- Name of NDVI raster map [-1.0;+1.0]
- temperature=name [required]
- Name of Surface temperature raster map [K]
- netradiation=name [required]
- Name of Net Radiation raster map [W/m2]
- localutctime=name [required]
- Name of time of satellite overpass raster map [local time in UTC]
- output=name [required]
- Name for output raster map
DESCRIPTION
i.eb.soilheatflux calculates the soil heat flux approximation (g0)
after Bastiaanssen (1995). The main reference for implementation is Alexandridis, submitted.
It takes input of Albedo, NDVI, Surface Skin temperature, Net Radiation (see
r.sun), time of satellite overpass, and a flag for the Roerink empirical
modification from the HAPEX-Sahel experiment.
SEE ALSO
r.sun
i.albedo
i.emissivity
i.eb.h_SEBAL01
i.eb.evapfr
REFERENCES
Bastiaanssen, W.G.M., 1995.
Estimation of Land surface parameters by remote sensing under clear-sky
conditions. PhD thesis, Wageningen University, Wageningen, The Netherlands.
Chemin Y., Alexandridis T.A., 2001. Improving spatial resolution of ET seasonal
for irrigated rice in Zhanghe, China. Asian Journal of Geoinformatics. 5(1):3-11,2004.
Alexandridis T.K., Cherif I., Chemin Y., Silleos N.G., Stavrinos E.,
Zalidis G.C. Integrated methodology for estimating water use in Mediterranean
agricultural areas. Remote Sensing. -(-):,2009. (submitted))
AUTHORS
Yann Chemin, Asian Institute of Technology, Thailand
Last changed: $Date: 2011-11-08 13:24:20 -0800 (Tue, 08 Nov 2011) $
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