| From a simple air-sea coupled equations, considering the heat of the deep sea to the air, we can get an analytical solution of the air-sea coupled equations. The analytical solution shows that the air-sea coupled interaction can excite unstable coupled waves. Analysing the character of the unstable coupled waves, and testing the theory. And we can get the conclusion: (1) The trend that the period and e-time scale of the unstable coupled waves changed with the change of the coefficient of air-sea coupled interaction is similar at difference latitude, difference scale and difference effect of the deep-sea to the mixed layer. The e-time scale decrease with the increase of the coefficient of air-sea coupled interaction to a minimal value, and then increase with the increase of the coefficient of air-sea coupled interaction. (2) .The period and e-time scale of the unstable coupled waves increased with the increase of the effect of the deep-sea to the mixed layer at the same latitude, same scale and same coefficient of air-sea coupled interaction, and so the minimal e-time scale and the period of the unstablest coupled waves increased with the increase of the effect of the deep-sea to the mixed layer. (3) The minimal e-time scale and the period of the unstablest coupled waves increased with the increase of the increase of the latitude in the north hemisphere at the same scale and the same effect of the deep-sea to the mixed layer. (4) The coefficient of air-sea coupled interaction that correspond to the minimal e-time of the unstable coupled waves is relate to the wave scale and latitude. And not relate to the effect of the deep-sea to the mixed layer. (5) The diagnostic analysis shows that the sea surface temperature is anticorrelate to the sea surface divergence in the North Pacific. And this is agreement with theory start. (6) Studying the period of the SSTs in difference region of the north pacific, and get the same conclusion with the theory.
|
PDF Full Text Request