摘要
在对多年水文数据进行分析的基础上,利用Kohonen自组织映射对鄱阳湖地区降水时序变化、长江来水和湖水水位变化进行模式识别。之后,将所得的模式作为解释变量,用CART方法对样本年份进行分类,建立了鄱阳湖区灾害模式判别树。借此揭示了鄱阳湖地区降水和长江来水对鄱阳湖洪涝灾害的影响。
Based on the analysis of years′ hydrological data, selforganizing map is used to discern the patterns of precipitation change in Poyang Lake area, floodwater from the Yangtze River and water level change of Poyang Lake Then, taking these patterns as the differentiating variables, sample years are classified with CART method and the flood pattern discerning trees of Poyang Lake area are set up It reveals the effects of precipitation in Poyang Lake area and the flood of Yangtze River on flood disasters in Poyang Lake area
出处
《灾害学》
CSCD
2003年第1期30-35,46,共7页
Journal of Catastrophology
基金
国家自然科学基金资助项目(79970053)
