Identification of Flood Seasonality for the Lechang Gorge Reservoir Basin
Abstract: The North River is the second largest drainage system of the Pearl River basin, and recently it has been suffering floods, which is a serious threat to public safety and property. Therefore, the con-struction of its upper reaches flood control system is of great significance. The Lechang Gorge Re-servoir is main part of the upper reaches flood control system of the North River, which protects the security of Shaoguan and Lechang Cities in downstream area. At present, the reservoir uses static flood limited level for operation, which can’t make full use of resources sufficiently. Reasonable identification of flood seasonality for the Lechang Gorge will promote the benefits of flood control and power generation. Based on discussing the advantages and disadvantages of each method and utilizing hydrological characteristic analysis method, vector statistic method, fuzzy analysis method and orderly cluster method, it was found that both the flood frequency and magnitude were large between early May and early July, and finally flood seasonality for the Lechang Gorge Reservoir was identified as three parts, namely pre-rainy flood season (March 1st-April 20th), major flood season (April 21st-July 10th) and after-rainy flood season (July 11th-September 30st).
文章引用: 钟逸轩 , 林凯荣 , 李 俊 (2014) 北江乐昌峡水库流域汛期分期研究。 水资源研究， 3， 351-359. doi: 10.12677/JWRR.2014.34043
 郭生练, 李响, 刘心愿, 等. 三峡水库汛限水位动态控制关键技术研究[M]. 北京: 中国水利水电出版社, 2011. GUO Shengliang, LI Xiang, LIU Xinyuan, et al. Study on key technique of dynamic control of flood limited water level in Three Gorges Reservoir. Beijing: China Water Power Press, 2011. (in Chinese)
 中华人民共和国水利部. 水利水电工程设计洪水计算规范SL 44-2006[S]. 北京: 中国水利水电出版社, 2006. Ministry of Water Resources. Design flood calculation regulating for water resources and hydropower engineering. Beijing: China Water Power Press, 2006. (in Chinese)
 刘攀, 郭生练, 李玮, 等. 变点分析方法在隔河岩水库汛期分期中的应用[J]. 长江科学院院报, 2007, 24(1): 8-11. LIU Pan, GUO Shenglian, LI Wei, et al. Application of changing-point method for flood season stage in Geheyan Re-servoir. Journal of Yangtze River Scientific Research Institute, 2007, 24(1): 8-11. (in Chinese)
 王志宗, 王银堂, 胡四一. 水库控制流域汛期分期的有效聚类分析[J]. 水科学进展, 2007, 18(4): 580-585. WANG Zongzhi, WANG Yintang and HU Siyi. Effective fuzzy cluster method for dividing reservoir flood season. Advances in Water Science, 2007, 18(4): 580-585. (in Chinese)
 严培胜, 王先甲, 孙志禹. 集对分析在三峡水库汛期分期中的应用[J]. 武汉大学学报(工学版), 2012, 45(3): 310-313. YAN Peisheng, WANG Xianjia and SUN Zhiyu. Application of set pair analysis theory to stage analysis of flood sea-sons in Three Gorges Reservoir. Engineering Journal of Wuhan University, 2012, 45(3): 310-313. (in Chinese)
 吴东峰, 何新林, 付杨, 等. 改进矢量统计法在汛期分期中应用研究[J]. 水资源与水工程学报, 2007, 18(5): 28-30. WU Dongfeng, HE Xinlin, FU Yang, et al. Application research of the improved vector statistical method into the flood season division. Journal of Water Resources & Water Engineering, 2007, 18(5): 28-30. (in Chinese)
 CUNDERLIK, J. M., OUARDA, T. B. M. J. and BOBÉE, B. On the objective identification of flood seasons. Water Resources Research, 2004, 40(1): 1-12.
 CUNDERLIK, J. M., OUARDA, T. B. M. J. and BOBÉE, B. Determination of flood seasonality from hydrological records. Hydrological Sciences Journal, 2004, 49(3): 511-526.
 蒋海艳, 莫崇勋, 韦逗逗, 等. 水库汛期分期研究综述[J]. 水利水电科技进展, 2012, 32(3): 75-80. JIANG Haiyan, MO Chongxun, WEI Doudou, et al. Review of reservoir flood season staging. Advances in Science and Technology of Water Resources, 2012, 32(3): 75-80. (in Chinese)
 黄家宝. 乐昌峡水利枢纽工程总控管理模式建立与应用[J]. 中国水利, 2011, 10: 33-34. HUANG Jiabao. Establishment and application of general control management method for Lechang Gorge Water Control Project. China Water Resources, 2011, 10: 33-34. (in Chinese)
 方彬, 郭生练, 刘攀, 等. 分期设计洪水研究进展和评价[J]. 水力发电. 2007, 33(7): 71-75. FANG Bin, GUO Shenglian, LIU Pan, et al. Advance and assessment of seasonal design flood methods. Water Power, 2007, 33(7): 71-75. (in Chinese)
 李妍清, 郭生练, 周研来, 等. 汉江安康水库流域汛期分期研究[J]. 水资源研究, 2013, 2: 64-69. LI Yanqing, GUO Shenglian, ZHOU Yanlai, et al. Identification of flood seasonality for the Ankang Reservoir Basin. Journal of Water Resource Research, 2013, 2: 64-69. (in Chinese)