An observational study of the 30–50 day atmospheric oscillations part II: Temporal evolution and hemispheric interaction across the equator |
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| Authors: | Li Chongyin Zhou Yaping |
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| Institution: | LASG, Institute of Atmospheric Physics, Academia Sinica, Beijing 100080,LASG, Institute of Atmospheric Physics, Academia Sinica, Beijing 100080 |
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| Abstract: | In this part, the temporal evolution and interaction across the equator of 30-50 day oscillation in the atmosphere are investigated further. The annual variation of 30-50 day oscillation is quite obvious in the mid-high latitudes. In the tropical atmosphere, the obvious interannual variation is an important property for temporal evolution of 30-50 day oscillation. The low-frequency wavetrain across the equator over the central Pacific and central Atlantic area, the movement of the long-lived low-frequency system across the equator and the meridional wind component across the equator will obviously show the interaction of 30-50 day oscillation in the atmosphere across the equator. |
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