摘要
根据３ 种不同观测资料，计算和分析了有关诊断具有耗散结构的系统混沌运动的特征量：功率谱、关联维数、Ｌｙａｐｕｎｏｖ 指数和关联熵。结果表明：尽管下垫面明显不同，大气边界层湍流均为混沌运动。
Based on 3 kinds of observation datasets,chaotic characteristics of atmospheric turbulence over four different surfaces are analysed.By investigating four characteristic quantities describing chaos: power spectrum, correlation dimension, Lyapunov exponents and correlation entropy, separately, some meaningful results have been derived. Although the underlying terrains are very different,their atmospheric turbulences are all of chaotic motions.
出处
《南京气象学院学报》
CSCD
1999年第4期680-684,共5页
Journal of Nanjing Institute of Meteorology
基金
中国科学院"九五"重大项目
国家"九五"攀登计划项目!(KZ951-A1-201-03)
关键词
混沌
功率谱
关联维数
湍流
大气边界层
chaos
power spectrum
correlation dimension
Lyapunov exponents
correlation entropy
