贵州清水河流域大花水水电站洪水临界面雨量分析  

The Analysis of Dahuashui Hydropower Station Critical Area Rainfall for Flood in Guizhou Qingshui River

作　　者：吉廷艳 王红丽 秦杰 胡跃文[3] 夏小玲 

机构地区：[1]贵州省气象服务中心,贵州贵阳550002 [2]贵阳市息烽县气象局,贵州息烽551100 [3]贵州省气象信息中心,贵州贵阳550002

出　　处：《安徽农业科学》2015年第12期166-168,共3页Journal of Anhui Agricultural Sciences

基　　金：公益性行业(气象)科研专项(GYHY201306059)

摘　　要：利用2008-2012年贵州清水河流域大花水水电站逐日入库流量、库水位和面雨量资料进行了相关分析和多元回归计算,针对电站300和500 m^3/s 2个关键入库流量,研究给出了该电站流域洪水临界面雨量指标。结果表明,大花水水电站库容水位涨落与入库流量密切相关,入库流量〉300 m^3/s时,水位上涨明显;电站入库流量分别与前1 d流量、前1 d面雨量和前10 d累积面雨量的相关性均较好,相关系数R2分别为0.512、0.426和0.500;临界面雨量指标表明,前日入库流量相对较小时,需要较大的面雨量才有可能形成300或500 m^3/s流量洪水,而前日入库流量相对较大时,仅需要相对较小的面雨量就有可能形成300或500 m^3/s流量洪水。Dahuashui hydropower station daily inflow, reservoir water level and area rainfall data are used to the correlation analysis and multiple regression calculation, aiming at the 300 and 500 m^3/s two key inflow of the power station, study gives the power station critical area rainfall index. The result showed that ： Dahuashui hydropower station reservoir water level is closely related to reservoir inflow. When the inflow is greater than 300 m^3/s, water level rose significant. The reservoir inflow of hydropower station has fairly good correlation with the yesterday＇ s flow, yesterday＇ s area rainfall and the cumulative area rainfall before ten days, the correlation coefficient R^2 is 0.512, 0. 426 and 0.500. The critical area rainfall index showed that： when yesterday＇ s flow is relatively low, needs greater area rainfall to form 300 or 500 m^3/s flow; when yesterday＇ s flow is relatively high, only needs litter area rainfall to form 300 or 500 m^3/s flow.

关 键 词：大花水水电站 入库流量 相关分析 临界面雨量 

分 类 号：S164[农业科学—农业气象学]