中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

Journal of Chongqing Jiaotong University(Natural Science) ›› 2011, Vol. 30 ›› Issue (2): 291-294.DOI: 10.3969/j.issn.1674-0696.2011.02.26

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Runoff Trend Analysis and Distributed Hourly Model Application Study of the Upper Reaches of Yangtze River

HOU Baojian1, WANG Miaolin1, 2   

  1. 1.School of River&Ocean Engineeing, Chongqing Jiaotong University, Chongqing 400074, China;2.Bureau of Hydrology&Water Resources Survey of the Upper Yangtze,Bureau of Hydrology,Changjiang Water Resources Commission, Chongqing 400014, China
  • Received:2010-12-06 Revised:2011-01-06 Online:2011-04-15 Published:2015-03-12

长江上游径流趋势分析及分布式小时模型应用

侯保俭1,王渺林12   

  1. 1.重庆交通大学河海学院, 重庆400074; 2.长江上游水文水资源勘测局, 重庆400014
  • 作者简介:侯保险(1985 — ),男,河南开封人,硕士研究生,主要从事流域水文模拟及3S技术研究。E-mail:houjunhao2008@yahoo.com.cn。

Abstract: Kendall correlated method was employed to analyze the variations o f runoff of the upper Yangtze River based on the data collected by six major stations a long them a in stream. The results indicated runoff of some stations decreased differently while the Jinsha River and Wujiang River were exceptional; runoff of Jialing River, Minjiang River and Tuojiang River decreased greatly and that o f Cuntan Station decreased a little. Distributed hourly water balance model was established based on GIS and DEM and its application in Cuntan Station in 1981 showed accuracy with efficiency coefficient 0.982, relevant cofficient 0.955 and water amount balance coefficient 1.001.The average value of efficiency coefficient was above 0.85; the error of water balance was within 5%; there was little difference between runoff by simulation and that by survey.

Key words: The upper Yangtze River, Kendall correlated method, runoff change, distributed hourly water balance model;simulation of runoff

摘要: 以长江上游流域6个主要控制测站实测数据为研究基础,利用Kendall秩次相关法对长江上游流域径流变化 趋势进行分析。结果表明:除金沙江屏山站全年和乌江武隆站汛期径流略有增加外,其它测站控制流域内径流均 有不同程度减少,其中嘉陵江北碚站、岷江高场站和沱江富顺站径流均显著减少,长江上游干流控制站寸滩站径流 则微弱减少。结合GIS和DEM建立分布式小时水量平衡模型,将模型应用寸滩站1981年特大洪水过程进行模拟, 模拟结果表明模型精度较高,效率系数0.982,相关系数0.955,水量平衡系数1.001,其它年份模拟效率系数均在 0.85以上,水量平衡误差均在5%以内,实测流量与模拟流量吻合较好。

关键词: 长江上游, Kendall秩次相关法, 径流变化, 分布式小时模型, 径流模拟

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