摘要
选用Morlet小波和GIS空间分析方法,研究河川径流的时空变化规律,对窟野河控制性水文测站1956-2009年径流序列的实例分析。结果表明:Morlet小波能够较好的表征窟野河流域多年平均径流量的时-频局部化特性,对径流时间序列的周期性和奇异性分析也较为准确;而利用GIS空间插值功能也能够直观的分析出窟野河流域不同时间尺度的径流空间分布规律,为后续开展相似研究提供了科学参考。
The paper selected Wavelet and GIS analysis to research the law of temporal and spatial varia- tion of runoff and analyzed the runoff series in controled hydrology station of Kuye river from 1956 to 2009. Results shows that Morlet wavelet can better characterize the time -frequency localization charac- teristics of average annual runoffl and more accurately analyze the periodic and singularity of runoff time series ; by use of powerful spatial interpolation function of GIS , it visually analyzed the spatial distribution regularity of runoff in Ku - ye river basin in different time scales. This method can provide a scientific ref- erence for the development of similar study.
出处
《水资源与水工程学报》
2016年第3期107-111,共5页
Journal of Water Resources and Water Engineering
基金
国家科技支撑计划项目(2011BAD29B01)
中央高校基本科研业务费科研创新重点项目(Z109021202)
