摘要
在对分形理论进行概述的基础上,对海况延续性和长期波高序列的统计分形特性进行了分析。分析得出海况的平均延时与波高阈之间具有分形关系。长期波高序列的R/S分析表明长期波高序列不是相互独立的,而是具有“记忆性”和持久性,其Hurst指数明显大于通常的时间序列。最后探讨了波浪分形特性的波侯意义,并对其应用前景进行了展望。
On the basis of introduction of fractal theory, the properties of wave persistence and long-term wave height series are analyzed. The relation between the sea stat e mean duration period and the wave height threshold is fractal. The log-term wave heig ht series are not independence by using the R/S analysis method. It is found that the seri es exhibit memory and persistence characteristics, and their Hurst exponents are obviously larger then the ordinary time series. The wave climate meaning of the wave fractal property and their application prospects are discussed finally.
出处
《海洋预报》
北大核心
2004年第2期44-51,共8页
Marine Forecasts
关键词
分形理论
海况延续性
长期波高序列
自仿射分形
statistical fractal
Hurst exponent
R/S analysis
self-affinity
wave climate
