DESCRIPTION
i.evapo.mh calculates the reference evapotranspiration (ET) after
Hargreaves et al. (1985), Hargreaves and Samani (1985) and the Modified
Hargreaves version found in Droogers and Allen (2002).
REFERENCES
- Hargreaves GL, Hargreaves GH, Riley JP, 1985. Agricultural benefits for
Senegal River Basin. Journal of Irrigation and Drainange Engineering,
ASCE, 111(2):113-124.
- Droogers P, Allen RG, 2002. Towards a simplified global reference
evapotranspiration equation. Irrigation Science.
- Droogers, P., Allen RG. 2002. Estimating reference evapotranspiration
under inaccurate data conditions. Irrigation and Drainage Systems 16: 33-45.
- Hargreaves GH, Samani ZA, 1985. Reference crop evapotranspiration from
ambient air temperature. American Society of Agricultural Engineers
(Microfiche collection)(USA). no. fiche no. 85-2517.
SEE ALSO
i.evapo.pt,
i.evapo.pm,
i.evapo.time,
r.sun
AUTHOR
Yann Chemin, GRASS Development team, 2007-2016