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I. A. Walter, R. G. Allen, R. Elliott, B. Mecham, M. E. Jensen, et al., “ASCE’s Standardized Reference Evapotranspiration Equation,” In: R. G. Evans, B. L. Benham, T. P. Trooien, Eds., Proceedings of National Irrigation Symposium, ASAE, Phoenix, 2000, pp. 209-215.

has been cited by the following article:

• TITLE: Evaluating Reference Crop Evapotranspiration (ETo) in the Centre of Guanzhong Basin—Case of Xingping & Wugong, Shaanxi, China

  AUTHORS: Hussein I. Ahmed, Junmin Liu

  KEYWORDS: Reference evapotranspiration; Part of Baoyang Irrigation Area; Meteorological Data; FAO

  JOURNAL NAME: Engineering, Vol.5 No.5, May 23, 2013

  ABSTRACT: In this paper, the Penman-Monteith method was applied to evaluate the reference crop evapotranspiration. A reliable estimation of the reference evapotranspiration (ETo) is of critical importance and required accurate estimates to close the water balance. The aim of this paper is estimating the reference evapotranspiration (ETo) as preliminary to use for groundwater modeling in the area. Based on FAO-Penman-Monteith method, ETo calculator software was applied. Meteorological data within this study were obtained from two gauges stations (Xing ping and Wu gong) and available literatures. The results indicated that the values of ETo for a period (1981-2009)—29 years—in two stations approximately the same. Specifically, is ranged between 0.4 - 6.9 mm /day, 0.4 - 6.7 mm/day and the average value is 2.6 mm/ day, 2.6 mm/day in Xing ping and Wu gong respectively. In addition, the maximum values were occurred in summer season (May, June and July). The result also found that the correlation coefficient ≈ 1. Moreover, “ETo” was increasing by recent years. The reference crop evapotranspiration for some crops were calculated.