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干旱区地理 ›› 1991, Vol. 14 ›› Issue (1): 48-53.doi: 10.13826/j.cnki.cn65-1103/x.1991.01.009

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我国干旱区灌溉对短期天气过程影响的数值试验与初步分析

刘晓东, 惠小英   

  1. 中国科学院兰州高原大气物理研究所
  • 出版日期:1991-03-25 发布日期:2025-12-25

NUMERICAL EXPERIMENTS ON INFLUENCE OF THE IRREGATION IN CHINESE DROUGHT AREA ON SHORT RANGE WEATHER

Liu Xiaodong, Hui Xiaoying   

  1. Lanzhou Ins.of Plateau Atmospheric Physics, Academia Sinica
  • Published:1991-03-25 Online:2025-12-25

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摘要： 本文应用一个有限区域细网格6层大气环流模式,分析了我国干旱区灌溉对短期天气过程可能造成的影响,通过数值试验表明,灌溉将使局地下垫面对大气的潜热输送增加,上升运动和水平辐合增强,从而导致低云量和降水显著增多。

关键词: 干旱区灌溉, 数值试验

Abstract: A limited-area fine-mesh 6-level general circulation model is used to study the effects of the irregation in Chinese drought area on short-range weather.The results of numerical experiments show that the latent heat from the underlying surface to atmosphere will be added, the upward motion and the horizontal convergence will be reinforced, in consequence the lower cloud cover and the rainfall will be increased through irregation in Chinese drought area.