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has been cited by the following article:

• TITLE: Assessing Climate Change Impact on Future Reference Evapotranspiration Pattern of West Bengal, India

  AUTHORS: Saon Banerjee, Benukar Biswas

  KEYWORDS: Climate Change, Reference Evapotranspiration, Penman-Monteith Method, NCAR Command Languages, West Bengal

  JOURNAL NAME: Agricultural Sciences, Vol.11 No.9, September 25, 2020

  ABSTRACT: Considering the importance of reference evapotranspiration (RET) in agriculture, hydrology and meteorology, the research problem was taken to assess the RET during winter season under projected climatic situation of West Bengal, India. The Penman-Monteith method was used in the study as it is the most accurate method of estimating RET. However, validation of the output of the equation was done with the help of observed data set. The data analysis was carried out using NCAR Command Language (NCL). The result clearly shows that the reference ET of the study area will be increased in the tune of 13% to 32% in the year 2050 compared to present RET level. Analysis of actual rainfall data shows a decreasing trend of winter rainfall in the study region. The projected rainfall data also follows the same pattern. Thus, the combination of low rainfall and higher ET value will demand more irrigation requirement for winter crops in West Bengal. The temporal changes of RET on decadal basis and spatial variation of RET for each decade have been observed and discussed in the paper.