陈玉林, 韩家田. 半干旱地区洪水预报的若干问题[J]. 水科学进展, 2003, 14(5): 612-616.
引用本文: 陈玉林, 韩家田. 半干旱地区洪水预报的若干问题[J]. 水科学进展, 2003, 14(5): 612-616.
CHEN Yu-lin, HAN Jia-tian. Problems on flood forecasting in the semi-arid region[J]. Advances in Water Science, 2003, 14(5): 612-616.
Citation: CHEN Yu-lin, HAN Jia-tian. Problems on flood forecasting in the semi-arid region[J]. Advances in Water Science, 2003, 14(5): 612-616.

半干旱地区洪水预报的若干问题

Problems on flood forecasting in the semi-arid region

  • 摘要: 半干旱地区的特点是降水少且时空分布不均,下垫面条件也与湿润地区有很大不同,从而使洪水预报工作较为困难。其难点主要是:下渗能力分布不均;制约下渗率的表层土湿计算;河网汇流中的渗漏损失计算;降雨分布不均问题等。探讨了这些问题的解决办法。

     

    Abstract: The characteristics of the semi-arid region are shortage of rainfall and the non uniformity of spatio temporal distribution.Conditions of catchment underlay differ from humid regions.It is difficult to forecast flood in the semi-arid region,which is non uniformity of infiltration capcity,computation of water content in surface soil,leakage calculation and non-unifority of rainfall.The preliminary methods for overcoming above difficulties are also discussed.

     

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