| Due to many factors in the effect of the earth’s rotation, solar radiation un-even heating and Earth’s sea, land and interval distribution, creating atmospheric motion nonlinearity and complexity, which requires people to have to carry out the basic theoretical research work. Only when the basic theoretical research work has been fruitful, it is possible to lead to the emergence of a more reliable and accurate weather forecasting and climate prediction. Firstly, we change the non-dissipative equations of the atmospheric motion into the operator equation in the local right-angle p coordinate system, the self-adjoint and anti-conjugate operator properties are the reflection of the forced dissipative structure charac-teristics of the atmospheric motions. Secondly, we combined the three large-scale decomposed circulation model with the atmospheric motion equations and estab-lished the large-scale circulation dynamics equations and proved that the operator properties can maintain the forced dissipative structural features unchanged. Fi-nally, according to the actual observations, we proposed a simplified model of a large-scale circulation dynamics equations and present a low spectral numerical model for the simplified model. we expect to reveal the inter-reaction of the large-scale three circulations by the numerical simulation and present the theory evidence for the numerical weather prediction. |