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Journal of Mountain Science

, Volume 9, Issue 3, pp 431–440 | Cite as

Mountain effect and differences in storm floods between northern and southern sources of the Songhua River Basin

  • Hongyan LiEmail author
  • Ya’nan Wu
  • Xiubin Li
Article

Abstract

In this study, the differences in annual rainstorm changes in the Second Songhua River Basin and the Nenjiang River basin and their causes were compared from the perspective of mountain effects. The following results were drawn: (1) Altitude effect is the primary factor leading to increased rainstorms in the southern source; (2) Slope effect primarily leads to differences of the weather systems in the two sources, and thus cause the difference of the rainstorms; (3) Slope effect is responsible for the greater fluctuation in the observed floods in the southern source. These landform differences eventually lead to the differences in the characteristics of floods in the southern and northern sources. Commensurability method was used to identify the period of rainstorms in the southern and northern sources. The results showed that although rainstorms do not appear at the same time in the two sources they are characteristic of a 10 years’ period in both areas. These results can serve as hydrological references for flood control and long-term flood disaster predictions.

Keywords

Mountain effect Songhua River Basin Nenjiang River Basin the Second Songhua River Basin Storm flood 

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Copyright information

© Science Press, Institute of Mountain Hazards and Environment, CAS and Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Key Laboratory of Groundwater Resources and Environment Ministry of EducationJilin UniversityChangchunChina
  2. 2.Baishan Power Plant of State Grid Xin Yuan Company LimitedHuadianChina

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