2011年伊洛河秋汛洪水特性分析  

Characteristic Analysis on Autumn Floods of 2011 in Yiluo River

作　　者：颜亦琪[1] 郭卫宁[1] 杨特群[1] 张利娜[1] 

机构地区：[1]黄河水利委员会水文局,河南郑州450004

出　　处：《人民黄河》2012年第12期43-45,共3页Yellow River

摘　　要：对2011年伊洛河秋汛的洪水特性进行了分析,结果表明:①此次秋汛降水强度大,降水时段多,持续时间长;②此次洪水径流系数较大;③洪水峰高量大,历时较长,下游洪水坦化变形严重,削峰率大,洪水水位比2003年、2010年的洪水水位低。This paper analyzed the characteristics of the 2011 autumn floods in Yiluo River. The results show that： ①this autumn rain is of high in- tensity, multi-period and long duration; ②the rainfall-runoff coefficient of this rain is higher; ③the floods of hydrological stations in Yiluo River have the common features of high peaks, large water volume and long duration. The downstream floods are flattened and deformed seriously and a large flat-topping rate and the flood water level is lower than that of 2003 and 2010.

关 键 词：水位流量关系 洪水 秋汛 2011年 伊洛河 

分 类 号：TV121[水利工程—水文学及水资源] P333[天文地球—水文科学]