| Abstract: |
| This study examines the dynamical mechanisms underlying the structure and stability of the atmospheric general circulation. Using the dynamical transition framework, it is proven that the atmospheric general circulation possesses a single-cell structure in the absence of the Earth`s rotation as previously hypothesized. The large-scale circulation however bifurcates into a triple-cell structure in the presence of the Earth`s rotation if the vertical temperature gradient and eddy coefficients satisfy a certain constraint. In particular, it is shown that the triple-cell structure as a result of the Earth`s rotation is topologically stable, thus explaining the highly resilient structure of the Earth`s atmospheric circulation despite various large-scale interactions and forcings. |
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