莒县沭河不同时段径流序列的基流分割方法
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摘要
将山东省莒县沭河流域作为研究对象,以日径流序列分割所得的基流量为基准,研究在周径流序列、月径流序列的条件下基流分割方法的适用性,并进行了验证。结果表明,在莒县沭河流域内,Lyne-Hollick滤波法在周径流序列、月径流序列的基流分割上同样适用;在周径流序列分割时较为合适的滤波次数为3,滤波系数约为0.76;在月径流序列分割时较为合适的滤波次数为2,滤波系数约为0.71,且当利用Lyne-Hollick滤波法对周、月径流序列进行基流分割时,与丰水年相比,平水年和枯水年分割结果与日基流分割结果更为接近。
Taking the Shu River basin in Ju county as a research area, and basing on the baseflow calculated by the daily runoff series separation, the applicability of baseflow separation in the case of only weekly runoff series and monthly runoff series was studied. The results show that the Lyne-Hollick digital filtering method can be applied to the baseflow separation of weekly runoff series and monthly runoff series; when the method is applied in weekly runoff series, the filtering times is 3, and filtering parameter is 0.76; when the method is applied in monthly runoff series, the filtering times is 2, and filtering parameter is 0.71. Moreover, when the Lyne-Hollick digital filtering method is uesd in baseflow separation, the separation result is more approximate with daily baseflow separation result in normal flow year and drought year than that in flood year.
Taking the Shu River basin in Ju county as a research area, and basing on the baseflow calculated by the daily runoff series separation, the applicability of baseflow separation in the case of only weekly runoff series and monthly runoff series was studied. The results show that the Lyne-Hollick digital filtering method can be applied to the baseflow separation of weekly runoff series and monthly runoff series; when the method is applied in weekly runoff series, the filtering times is 3, and filtering parameter is 0.76; when the method is applied in monthly runoff series, the filtering times is 2, and filtering parameter is 0.71. Moreover, when the Lyne-Hollick digital filtering method is uesd in baseflow separation, the separation result is more approximate with daily baseflow separation result in normal flow year and drought year than that in flood year.
引文
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[5] 雷泳南,张晓萍,张建军,等.自动基流分割法在黄土高原水蚀风蚀交错区典型流域适用性分析[J].中国水土保持科学,2011,9(6):57-64.
[6] 林凯荣,郭生练,张文华.基于霍顿下渗能力曲线的流量过程线连续分割方法研究[J].水文,2008,28(1):10-14.
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[9] 李姝蕾,鲁程鹏,李伟,等.长江螺山站50年来基流演变趋势分析[J].水资源与水工程学报,2015,26(5):128-131.
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[11] 束龙仓,胡慧杰,苏桂林,等.主观因素影响下河川基流量计算的不确定性分析:以增江中下游为例[J].南水北调与水利科技,2016,14(4):8-13,28.
[12] 刘新有,谢飞帆.基于数字滤波法的怒江流域基流时空分异[J].水资源保护,2017,33(1):18-23.
[13] 王燕,赵雪花,张永波,等.不同基流分割方法在渭河流域的应用对比分析[J].水力发电,2017,43(2):15-17,80.
[14] 徐榕焓,王小刚,郑伟.基流分割方法研究进展[J].水土保持通报,2016,36(5):352-359.
[15] NATHAN R J,MCMAHON A T.Evaluation of automated techniques for base flow and recession analyses[J].Water Resources Research,1990,26(7):1465-1473.
[2] ECKHARDT K.A comparison of baseflow indices,which were calculated with seven different baseflow separation methods[J].Journal of Hydrology,2008,352(1/2):168-173.
[3] 黄国如.流量过程线的自动分割方法探讨[J].灌溉排水学报,2007,26(1):73-78.
[4] 曾松青,陈建耀,付丛生.同位素在小流域基流计算中的应用研究[J].水文,2010,30(2):20-24.
[5] 雷泳南,张晓萍,张建军,等.自动基流分割法在黄土高原水蚀风蚀交错区典型流域适用性分析[J].中国水土保持科学,2011,9(6):57-64.
[6] 林凯荣,郭生练,张文华.基于霍顿下渗能力曲线的流量过程线连续分割方法研究[J].水文,2008,28(1):10-14.
[7] 杨桂莲,郝芳华,刘昌明,等.基于SWAT模型的基流估算及评价:以洛河流域为例[J].地理科学进展,2003,22(5):463-471.
[8] SMAKHTIN V U.Estimating continuous monthly baseflow time series and their possible applications in the context of the ecological reserve[J].Water SA,2001,27(2):213-217.
[9] 李姝蕾,鲁程鹏,李伟,等.长江螺山站50年来基流演变趋势分析[J].水资源与水工程学报,2015,26(5):128-131.
[10] 王冠,鲁程鹏,李姝蕾,等.五种基流分割方法在长江螺山站的应用对比研究[J].水资源与水工程学报,2015,26(3):118-123.
[11] 束龙仓,胡慧杰,苏桂林,等.主观因素影响下河川基流量计算的不确定性分析:以增江中下游为例[J].南水北调与水利科技,2016,14(4):8-13,28.
[12] 刘新有,谢飞帆.基于数字滤波法的怒江流域基流时空分异[J].水资源保护,2017,33(1):18-23.
[13] 王燕,赵雪花,张永波,等.不同基流分割方法在渭河流域的应用对比分析[J].水力发电,2017,43(2):15-17,80.
[14] 徐榕焓,王小刚,郑伟.基流分割方法研究进展[J].水土保持通报,2016,36(5):352-359.
[15] NATHAN R J,MCMAHON A T.Evaluation of automated techniques for base flow and recession analyses[J].Water Resources Research,1990,26(7):1465-1473.