Environmental Science
6 years ago

New methods revolutionize water management in agricultural areas of China.

Meteorological Applications
Performance of 12 reference evapotranspiration estimation methods compared with the Penman–Monteith method and the potential influences in northeast China
Xinyi Song, Fan Lü, Weihua Xiao, Kui Zhu, Yuyan Zhou, Zibo Xie

Paper Summary

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Reference evapotranspiration (ET0) estimation methods vary by region. A study compared 12 methods with the widely accepted Penman-Monteith (P-M) method in northeast China. The Valiantzas2 and H-Makkink methods are recommended for agricultural areas, while Turc and Hargreaves-Samani methods may introduce biases. Temperature is the most influential factor, accounting for 59.5% of ET0 values. A modified equation provides the most accurate results, but drought events can affect its accuracy.