Using the calculated results of Sellers model, the dynamic process of the stochastic response system is linearized and, thereby, a stochastic dynamic model for the time-dependent variation in temperature of the earth-atmosphere system in different latitudinal zones is constructed. The principal characteristics of the temperature variation, derived from this model, are in good agreement with the actual situation. And finally. resttlts from the simulative test for the global ocean heat transport effect is given.