The Reference Crop Evapotranspiration Estimation Based on Bilinear Theory
Abstract：According to the meteorological data and geographical parameters in 1951--2000, calculating crop the evapotranspiration （ETo） for Penman-Monteith model. Calculated of the ETo in the bilinear theory, establishing the calculation of ETo calculated by bilinear model, and to further utilize step bilinear model establishment of ETo calculated by bilinear model, by analogy, establishing the simplified bilinear model. Through comparing the relative error of the absolute value of mean and the root-mean-square error with the different bilinear model, the bilinear model precision is high. Through mean absolute error and the average relative error are smaller in the simplified bilinear model. Therefore, in practice, we may use the simplified bilinear model for calculation of the ET0 calculated based the precise demand.
Keywords：Penman-MonteithETobilinear modelsimplified bilinear model
Publication Date：2011-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)