灰色定权聚类法在水库汛期分期中的应用
|
摘要
以潘家口水库为例,在分析水文灰色特性及灰色系统理论的基础上,将灰色定权聚类法运用于水库汛期分期计算中。通过选取汛期各旬为聚类对象,降雨洪水典型因子为聚类指标,主汛期为灰类,然后构造白化权函数计算各旬属于主汛期的定权聚类系数,最后根据定权聚类系数的大小将汛期各旬归类,得出潘家口水库汛前期为6月1日～7月10日,主汛期为7月11日～8月20日,后汛期为8月21日～9月30日。
Taking Panjiakou Reservoir as an example,the grey fixed weight clustering method is introduced to calculate the flood season staging of Reservoir under the analysis of relationship between grey system theory and grey characteristics of hydrology.After taking every ten days during flood season as clustering objects,typical factors of rainfall and floods as clustering index and main flood season as grey category,the whitenization weight function is established to calculate the fixed weight clustering coefficient of every ten days which belonging to main flood season,and then the whole every ten days during flood season will be classified according to the magnitude of fixed weight clustering coefficient.The results show that the preflood season of Panjiakou Reservoir is 1st June to 10th July,the flood season is 11th July to 20th August and the after-flood season is 21st August to 30th September.
Taking Panjiakou Reservoir as an example,the grey fixed weight clustering method is introduced to calculate the flood season staging of Reservoir under the analysis of relationship between grey system theory and grey characteristics of hydrology.After taking every ten days during flood season as clustering objects,typical factors of rainfall and floods as clustering index and main flood season as grey category,the whitenization weight function is established to calculate the fixed weight clustering coefficient of every ten days which belonging to main flood season,and then the whole every ten days during flood season will be classified according to the magnitude of fixed weight clustering coefficient.The results show that the preflood season of Panjiakou Reservoir is 1st June to 10th July,the flood season is 11th July to 20th August and the after-flood season is 21st August to 30th September.
引文
[1]邓聚龙.灰色系统基本方法[M].武汉:华中理工大学出版社,1987.
[2]夏军.灰色系统水文学——理论、方法及应用[M].武汉:华中理工大学出版社,2000.
[3]胡四一,高波,王忠静.海河流域洪水资源安全利用[J].中国水利,2002(10):105-108.
[4]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):75-80.
[5]陈守煜.从研究汛期描述论文水文系统模糊集分析的方法论[J].水科学进展,1995,6(2):133-138.
[6]高波,刘克琳,王银堂,等.系统聚类法在水库汛期分期中的应用[J].水利水电技术,2005,36(6):1-5.
[7]侯玉,吴伯贤,郑国权.分形理论用于洪水分期的初步探讨[J].水科学进展,1999,10(2):140-143.
[8]刘攀,郭生练,王才君,等.三峡水库汛期分期的变点分析方法研究[J].水文,2005,25(1):18-23.
[9]张尧庭,方开泰.多元统计分析引论[M].北京:科学出版社,1982.
[10]和宏伟,张爱玲.Fisher最优分割法在云南地震分期中的应用[J].地震研究,1994,17(3):231-239.
[11]刘思峰,党耀国,方志耕,等.灰色系统理论及其应用[M].北京:科学出版社,2010.
[2]夏军.灰色系统水文学——理论、方法及应用[M].武汉:华中理工大学出版社,2000.
[3]胡四一,高波,王忠静.海河流域洪水资源安全利用[J].中国水利,2002(10):105-108.
[4]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):75-80.
[5]陈守煜.从研究汛期描述论文水文系统模糊集分析的方法论[J].水科学进展,1995,6(2):133-138.
[6]高波,刘克琳,王银堂,等.系统聚类法在水库汛期分期中的应用[J].水利水电技术,2005,36(6):1-5.
[7]侯玉,吴伯贤,郑国权.分形理论用于洪水分期的初步探讨[J].水科学进展,1999,10(2):140-143.
[8]刘攀,郭生练,王才君,等.三峡水库汛期分期的变点分析方法研究[J].水文,2005,25(1):18-23.
[9]张尧庭,方开泰.多元统计分析引论[M].北京:科学出版社,1982.
[10]和宏伟,张爱玲.Fisher最优分割法在云南地震分期中的应用[J].地震研究,1994,17(3):231-239.
[11]刘思峰,党耀国,方志耕,等.灰色系统理论及其应用[M].北京:科学出版社,2010.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心