dominant period

The dominant periods of the runoff in different hydrologic stations are confirmed,and the periodical variation and fluctuation of rainy season and dry season with multi-scale of time are analysized.

采用Morlet复小波对澜沧江下游段降水量进行分析,揭示了澜沧江下游地区年度降水量的多尺度振荡特性和周期性变化,确定了主周期。