• OpenAccess
  • Regional Calibration of Hargreaves Equation in the Xiliaohe Basin  [HOAC 2016]
  • DOI: 10.4236/gep.2016.47004   PP.28 - 36
  • Author(s)
  • Leizhi Wang, Qingfang Hu, Yintang Wang, Yong Liu, Lingjie Li, Tingting Cui
  • This paper investigates calibration of Hargreaves equation in Xiliaohe Basin. Twelve meteorologicalgauges located within Xiliaohe Basin in Northeast China were monitored during 1970 and 2014 providing continuous records of meteorological data. Taking daily ET0 calculated by Penman-Montieth equation as the benchmark, the error of Hargreaves equation for computing ET0 was evaluated and the investigation on regional calibration of Hargreaves equation was carried out. Results showed there was an obvious difference between the calculating results of Hargreaves and Penman-Monteith equation. The estimation of the former was obviously higher during June and September while lower during the rest time in a year. The three empirical parameters of the Hargreaves equation were calibrated using the SCE-UA (Shuffled Complex Evolution) method, and the calibrated Hargreaves equation showed an obvious promotion in the accuracy both during the calibration and verification period.

  • Reference Crop Evapotranspiration, Penman-Monteith, Hargreaves, SCE-UA, Xiliaohe
  • References
  • [1]
    Xie, X.Q. and Wang, L. (2007) Changes of Potential Evaporation in Northern China over the Past 50 Years. Journal of Natural Re-sources, No. 5, 683-691.
    Allen, R.G., Smith, M. and Pereiral, L.S. (1994) An Update for the Definition of Reference Evapor-transpiration. ICID Bulletin, 43, 1-34.
    Allen, R.G., Pereira, L.S., Raes, D., et al. (1998) Crop Evapotranspiration-Guidelines for Computing Crop Water Requirements-FAO Irrigation and Drainage Paper 56. FAO, Rome, 300(9): D05109.
    Hu, Q.F., Yang, D.W., Wang, Y.T., et al. (2011) Global Calibration of Hargreaves Equation and Its Applicability in China. Advances in Water Science, 22, 160-167.
    Hargreaves, G.H. and Allen, R.G. (2003) History and Evaluation of Hargreaves Evapotranspiration Equation. Journal of Irrigation and Drainage Engineering, 129, 53-63.
    Su, C.H., Chen, Y.X. and Xu, B. (2008) Recent Development and Universality Evaluation of ET0 Calculation Formulas. Advances in Water Science, 19, 129-1361.
    Wang, S.F., Duan, A.W. and Zhang, Z.Y. (2008) Comparison and Analysis of Hargreaves Equation and Penman-Monteith Equation during the Different Hydrological Years in the Semi-Arid Region. Transactions of the Chinese Society of Agricultural Engineering, 24, 29-33.
    Fan, W.B., Wu, P.T., Han, Z.Q., et al. (2012) Influencing Factors Analysis of Reference Crop Evapotranspiration and Modification of Hargreaves Method in Manas River Basin. Transactions of the Chinese Society of Agricultural Engineering, 28, 19-24.
    Yang, Y.H. and Zhang, Z.Y. (2009) Method for Calculating Lhasa Reference Crop Evapotranspiration by Modifying Hargreaves. Advances in Water Science, 20, 614-618.
    Cao, W. and Shen, S.H. (2008) Estimation of Daily Solar Radiation in China. Journal of Nanjing Institute of Meteorology, 31, 587-591.
    Hu, Q.F., Yang, D.W., Wang, Y.T., et al. (2010) Effects of Angstrom Coefficients on ET0 Estimation and Theapplicability of FAO Recommended Coefficient Values in China. Advances in Water Science, 21, 644-652.
    Duan, Q., Sorooshian, S. and Gupta, V. (1992) Effective and Efficient Global Optimization for Conceptual Rainfall-Runoff Models. Water Resources Research, 28, 1015-1031.
    Hu, Q.F. (2005) Study on Computation and Forecasting Methods of Reference Evapo-transpiration. Tsinghua University, Beijing.
    Samani, Z. (2000) Estimating Solar Radiation and Evapotranspiration Using Min-imum Climatological Data. Journal of Irrigation and Drainage Engineering, 126, 265-267.

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