Comparison and Evaluation of Estimating Reference Evapotranspiration Methods in Three General Categories Based on Temperature, Radiation and Mass Transfer (Case Study: Lorestan Province)

Message:
Article Type:
Case Study (دارای رتبه معتبر)
Abstract:

Accurate estimate of reference evapotranspiration is very important not only in planning andcomputing irrigation frequency, but also in studies related to water balance modeling in eacharea. The purpose of this study is to compare and evaluate nine different methods of estimatingthe reference evapotranspiration based on three general categories of temperature, radiation andmass transfer at nine study stations in Lorestan province from 1999 to 2019. The results of thesemethods were compared with the results of the FAO Penman Monteith. The performance ofdifferent methods was evaluated using R2, RMSE and CRM statistics. The results showed that inmost of the study stations, among the temperature-based methods, the Hargreaves Samani,among the radiation based methods, the Makkink and among the mass transfer methods, theWMO showed the best performance with the highest R2 and lowest RMSE. Also using ArcGISsoftware, spatial zoning was performed and maps of each category was presented.

Language:
Persian
Published:
Pages:
107 to 120
https://www.magiran.com/p2249056  
سامانه نویسندگان
  • Peyghan، Khashayar
    Author (4)
    Peyghan, Khashayar
    Phd Student Department of Irrigation and Reclamation Engineering, University of Tehran, Tehran, Iran
اطلاعات نویسنده(گان) توسط ایشان ثبت و تکمیل شده‌است. برای مشاهده مشخصات و فهرست همه مطالب، صفحه رزومه را ببینید.
مقالات دیگری از این نویسنده (گان)