NDLI: Variation Relationship among Multi-station Flood Series in Middle Reach of Xijiang River Basin

Content Provider	IEEE Xplore Digital Library
Author	Ping Xie Li Chen Yasong Tang Caixia Hu Yingying Tan
Copyright Year	2010
Abstract	Xijiang River, the main stream of Pearl River Basin, suffered a lot from flood and the frequency and magnitude of flood increased obviously due to intensive human activities in recent years. In order to know the flood evolution law and its mechanism, hydrological variation diagnosis system was applied to analyze variation towards annual maximum peak flow and highest water level in middle reach of Xijiang River Basin. Hydrological variation diagnosis system is composed of three parts, namely primary diagnosis, detailed diagnosis and comprehensive diagnosis. It can solve the problems that single diagnosis method may give unreasonable result on occasion and the results of variant methods may be inconsistent. The results of variation diagnosis in Xijiang River shows that: annual maximum peak flow and highest water level mostly have medium jump at 1991 of Wuxuan, Dahuangjiangkou and Wuzhou station, which are located at mainstream. Except for a medium jump at 1993 of Taiping station, there are no variations or weak variations in tributary. The correlation analysis results indicate that water level closely relate to flood flow, thus flood flow variations lead to water level variations at mainstream. The consistent results of variations in mainstream and no variation in tributary reveal that the relationship of flood variation in mainstream are close, whereas floods in tributary have little influence on floods in mainstream. Analyses of physical causes show that climate change has little influence on flood variations in Xijiang River. Human activities have changed flood encounter of mainstream and tributary, laws of runoff yield and concentration, and flood returning channel. Thus, these are the main causes of flood variation in Xijiang River.
Starting Page	5785
Ending Page	5788
File Size	413486
Page Count	4
File Format	PDF
ISBN	9781424468805
e-ISBN	9781424468812
DOI	10.1109/iCECE.2010.1406
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-25
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Presses Atmospheric modeling Variation analysis Humans Flood series Diagnosis system Rivers Floods Water resources Xijiang River Basin Meteorology Physical causes
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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