Journal article

Forecasting daily reference evapotranspiration for Australia using numerical weather prediction outputs

Kushan C Perera, Andrew W Western, Bandara Nawarathna, Biju George

Agricultural and Forest Meteorology | ELSEVIER | Published : 2014


Farmers and irrigation system operators make real-time irrigation decisions based on a range of factors including short-term weather forecasts of rainfall and temperature. The simplest and oldest statistical method for forecasting daily ET is to use the long-term monthly mean ET based on historical observations. Forecasts of reference crop evapotranspiration (ET ) can be calculated from Numerical Weather Prediction (NWP) outputs and ET has the advantage of being more directly relevant to crop water requirements than temperature. This paper evaluates forecasts of ET made using the Bureau of Meteorology's operational NWP forecasts derived from the Australian Community Climate and Earth Sys..

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Funding Acknowledgements

The authors wish to express their gratitude to the Bureau of Meteorology, Australia for providing NWP forecasts derived from ACCESS-G for research purposes and Dr. Alan Seed and Dr. Shaun Cooper, Bureau of Meteorology, Australia for their support, especially during data collection. Kushan Chanaka Perera was supported by an Australian Post-Graduate Award from the University of Melbourne.