Irrigation & Drainage Systems Engineering

Thomas Scherer

Publications

• Research Article
  Comparison of Reference Evapotranspiration Calculations for Southeastern North Dakota
  Author(s): Xinhua Jia, Thomas Scherer, Dongqing Lin, Xiaodong Zhang and Ishara RijalXinhua Jia, Thomas Scherer, Dongqing Lin, Xiaodong Zhang and Ishara Rijal
  
  Potential water consumption for irrigation scheduling in North Dakota was typically calculated from a reference Evapotranspiration (ETref) using the Jensen-Haise method and its associated crop coefficient (Kc) curves developed in the 1970’s and 1980’s. The ETref method proposed by the American Society of Civil Engineers, Environmental and Water Research Institute (ASCE-EWRI) reference evapotranspiration task force has shown to be more accurate and therefore more widely used than any other methods. However, to apply the ASCE-EWRI method for irrigation scheduling requires a corresponding change of the Kc curves associated with the Jensen-Haise method. In this paper, a comparison of ETref estimates for 11 methods, including the ASCE-EWRI and the Jensen-Haise methods, was conducted using 18 years of data collected in southeastern North Dakota. The results show that the annual .. Read More»
  DOI: 10.4172/2168-9768.1000112

  Abstract PDF