摘要
利用南京、镇江两站的长江水位和降水量及长江大通站流量资料,分析了近50年来南京和镇江两地长江年最高水位的周期和趋势变化特征,以及两地之间的关系,并研究了出现年最高水位的可能原因。发现年最高水位的出现往往是天文潮位、上游来水和当地降水等其中某个因素起主导作用,或者是几个因素共同作用而引起的,特别是当这3个因素共同作用时会使水位非常高,而往往超过警戒水位。
Based on the data of water lavel and precipitation of Yangtze River Basin at Nanjing and Zhenjiang stations and the data of discharge at Datong station, we analyzed the periodic characteristics and change trend of the annual maximum water level of the two stations and their relation between the two areas, and studied the possible reason occurring the annual maximum water level. The results show that the one factor among astronomical tide, local precipitation and upriver flux and specially the coaction of the three factors can be the dominant reason.
出处
《自然灾害学报》
CSCD
北大核心
2008年第3期6-9,共4页
Journal of Natural Disasters
基金
国家自然科学重点资助项目(40331010)
江苏省科技厅社会发展项目(BS2002067)
关键词
年最高水位
降水
天文潮位
manual maximum water levels
precipitation
astronomical tide
