水力发电学报2014，Vol.33Issue(3)：112-117,6.
黄河宁蒙河段槽蓄水增量演变规律研究
The influence of the channel-storage increment in Ningxia-Inner Mongolia reaches of the Yellow River
摘要
Abstract
First of all this paper Statistics the economic losses caused by ice disaster in resent 62 years 1951～2012,and explore the relationship between ice disaster and Channel-storage increment.Secondly Kendall correlations were used to analyze trends in channel storage increment data.In addition,the maximum entropy spectrum method was used to study the periodicity of the channel-storage increment time series.At the last,the up-envelop method was used to analysis variation of the Channel-storage increment.It was found that there is no obviously trend in the channel-storage increment and appear to vary cyclically with a period of approximately four years that mirrors the sunspot cycle.The maximum vale usually appears at the end of the freeze-up or break-up period,and closely related to the Lanzhou section of the freeze-up flow.The results presented herein will be useful when devising strategies for preventing ice formation in the upper reaches of the Yellow River.关键词
水文学/槽蓄水增量/凌灾/kendall秩次相关分析/极大熵谱分析/演变规律Key words
hydrology/ Channel-storage increment/ Ice disaster/ Kendall correlation/ Maximum entropy spectrum/ Evolution rule分类
建筑与水利引用本文复制引用
郭志辉,畅建霞,黄强,崔屾..黄河宁蒙河段槽蓄水增量演变规律研究[J].水力发电学报,2014,33(3):112-117,6.基金项目
国家自然科学基金重大项目(51190093) （51190093）
国家重大基础研究973(2011CB403302-2) （2011CB403302-2）
