中国农业气象

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利用估算的太阳辐射计算浑善达克沙地参考作物蒸散速率的精度分析

商艳;朝伦巴根;达布希;于婵;柴建华;   

  1. 内蒙古农业大学水利与土木工程建筑学院,内蒙古农业大学水利与土木工程建筑学院,内蒙古气象研究所,内蒙古农业大学水利与土木工程建筑学院,内蒙古水利科学研究院 呼和浩特010018,呼和浩特010018,呼和浩特010018
  • 出版日期:2006-02-10 发布日期:2006-02-10
  • 基金资助:
    国家自然科学基金重点资助项目(50139040)

The Accuracy Analysis of Reference Evapotranspiration(ET_0) Calculation by Using Estimated Solar Radiation in Hunshandake Desert Areas

SHANG Yan~(1),CHAOLUNBAGEN~(1),DABUXI~(1),YU Chan ~(1),CHAI Jian-hua ~(2)(1.College of Hydraulic and Civil Engineering,Inner Mongolian Agricultural University,Huhhot 010018,China;2.Institute of Meteorological Research of Inner Mongolia;3.Institute of Water Resources of Inner Mongolia)   

  • Online:2006-02-10 Published:2006-02-10

摘要: 利用FAO推荐的Penman-Monteith公式,以内蒙浑善达克沙地三个气象站太阳辐射实测值计算的参考作物蒸散速率(ET0)为背景值,分析了利用估算的太阳辐射计算ET0时的精确度。结果表明:太阳实际日照时数短时,ET0的计算误差比较明显,必须利用适当的方法予以修正。

关键词: 太阳辐射估值, 参考作物蒸散速率(ET0)计算, 精度分析

Abstract: Based on the reference evapotranspiration(ET_(0)) calculated by the observed solar radiation in the three meteorological stations in Hunshandake desert land areas,the accuracy of reference Evapotranspiration(ET_(0)) estimated by solar radiation was analyzed,by applying the FAO referenced Penman-Monteith formula.The results showed that the calculating errors of the ET_(0) would be significant when the actual duration of sunshine was short.In this case,the method should be modified.

Key words: Estimated solar radiation, Estimated solar radiation, Determination of ET_(0), Accuracy analysis