DESCRIPTION

i.evapo.MH Calculates the reference ET after Hargreaves (1985) and Modified Hargreaves (2001).

SEE ALSO

i.evapo.pt, i.evapo.pm, i.evapo.time, r.sun

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., and R.G. Allen. 2002. Estimating reference evapotranspiration under inaccurate data conditions. Irrigation and Drainage Systems 16: 33-45.

Hargreaves and Samani, 1985.

AUTHORS

Yann Chemin, GRASS Development team, 2007-2011

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