History and Evaluation of Hargreaves Evapotranspiration Equation

  title={History and Evaluation of Hargreaves Evapotranspiration Equation},
  author={George H. Hargreaves and Richard G. Allen},
A brief history of development of the 1985 Hargreaves equation and its comparison to evapotranspiration ~ET! predicted by the Food and Agricultural Organization of the United Nations ~FAO! Penman-Monteith method are described to provide background a information helpful in selecting an appropriate reference ET equation under various data situations. Early efforts in irrigation requirement computations in California and other arid and semiarid regions required the development of simplified ET… CONTINUE READING
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User-friendly software for calculation and missing data error ana sis of FAO 56-standardized Penman-Monteith daily reference evaporation.’’Irrig

  • Allen, G R.
  • 2001

Pilar of sand—Can the irrigation miracle last

  • Postel
  • 1999

Irrigation fundamentals, Water Resources Publications

  • G. H. Hargreaves, Z. A. Samani
  • 1998

A simple evapotranspiration model for Hawaii : The Hargreaves model

  • G. H. Hargreaves
  • 1997

A simple evapotranspiration model for Hawaii: Th Hargreaves model.’

  • Wu, I-Pai
  • Cooperative Extension Service, Engineer’s N book,
  • 1997

Self-calibrating method for estimating solar radi tion from air temperature.’

  • R. G. Allen
  • 1997
1 Excerpt

Evaporation and transpiration.’

  • Rome, R. G. 300. Allen, +5 authors H F.
  • 1996

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