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i.eb.eta - Actual evapotranspiration for diurnal period (Bastiaanssen, 1995).
imagery, energy balance, actual evapotranspiration, SEBAL
i.eb.eta
i.eb.eta --help
i.eb.eta netradiationdiurnal=name
evaporativefraction=name temperature=name
output=name [--overwrite] [--help]
[--verbose] [--quiet] [--ui]
i.eb.eta calculates the actual evapotranspiration (ETa ; mm/d) for diurnal period after [1], implemented in [3]. It takes input of Diurnal Net Radiation (see r.sun), evaporative fraction (see i.eb.evapfr) and surface skin temperature.
Full ETa processing will need those:
For more details on the algorithms see [1][2][3][4].
[1] Bastiaanssen, W.G.M., 1995. Estimation of Land surface parameters by remote sensing under clear-sky conditions. PhD thesis, Wageningen University, Wageningen, The Netherlands. (PDF)
[2] 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.
[3] 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, 1, 445-465. (PDF)
[4] Chemin, Y., 2012. A Distributed Benchmarking Framework for Actual ET Models, in: Irmak, A. (Ed.), Evapotranspiration - Remote Sensing and Modeling. InTech. (PDF)
r.sun, i.eb.evapfr, i.eb.netrad
Yann Chemin, Asian Institute of Technology, Thailand
Available at: i.eb.eta source code (history)
Accessed: Sunday Jan 22 07:37:24 2023
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