给定参数条件下海温脉动随机模式的混沌行为

CHAOS OUTPUT FROM A SST FLUCTUATION STOCHASTIC MODEL WITH GIVEN PARAMETERS

从Ｓａｌｔｚｍａｎ海气随机气候模式出发，得到了海温脉动θ′的Ｌａｎｇｅｖｉｎ方程以及对应的Ｆｏｋｋｅｒ－ｐｌａｎｋ方程。在给定参数条件下求数值解，得到的概率密度曲线ｐ（ｘ，ｔ）具有多个极大值，并在ｐ（ｘ，ｔ）－ｐ（ｘ，ｔ＋τ）相空间中呈现Ｃａｎｔｏｒ集合图象，表明该随机系统在上述参数条件下出现了混沌行为。

Usirig the Saltzman sea-air stochastic climate model the Langevin equation for sea-air fluctuation θ'and the related Fokker-plank formulation were derived numerical solutions obtaind in terms of specified parameters, the probability density curve p(x,t) is found to be of a number of maxima and a Cantor set image is shown in the phase space of p (x, t) and p(x,t+τ), suggesting that the stochastic system produces chaos output with the defined parameters.