热带纬向平均臭氧层动力学系统的重建

RECONSTRUCTING DYNAMIC SYSTEM FOR TROPICAL LATITUDINAL AVERAGING OZONOSPHERE

关键词:  臭氧层  分数维  状态变量  控制参数  动力学系统

Key words:  Ozonosphere  Fractional dimension  State variable  Controlled parameter  Dynamic system

摘要:

将TOMS测量的5°N纬向平均O₃总量逐日序列作相空间拓展,使O₃层的行为特征可用相轨迹刻划。首先计算O₃层系统吸引子的分数维,而后把相点作为动力学系统的离散特解集合,反演出描述系统状态随时间演化的数学模型中的客观控制参数值,建立起反映热带O₃层短期演化特征的非线性动力学系统。

Abstract:

In this paper,the day-to-day sequence of the total ozone of 5°N zonal average measured by TOMS is opened up in the phase space,so that the characteristics of the ozonosphere can be described by phase locus.First of all,the fractional dimension of system attractor of the ozonosphere is computed.Then regarding the phase points as the set of special discretion solutions to the dynamic system,the realistic controlled parameters retrieving to the mathematical model which is used to describe the state of system evolution with time are inverted,and the nonlinear dynamic system of which reflected the evolution characteristic fo ozonosphere over tropical area in short periods are est up.