Thus MESA is employed to detect the cryptic periods characteristics of the monthly runoff series, annual runoff series and annual maximum flood peak series of Huayuankou Station in the Yellow River.

• 为此，本文以黄河花园口（秦厂）测站年径流系列、月径流系列和年最大洪峰流量序列隐含周期特性的研究为例，探讨了最大熵谱分析在水文时间序列隐含周期特性中的应用。