By using a linear and stationary atmospheric model (Luo and Jiang, 1994, Zebiak and Cane,1987) and the initial data coming from Zebiak and Cane (1987), the influence of interaction between shift of warm pool and that ...By using a linear and stationary atmospheric model (Luo and Jiang, 1994, Zebiak and Cane,1987) and the initial data coming from Zebiak and Cane (1987), the influence of interaction between shift of warm pool and that of the equatorial convergence zone (ITCZ and SPCZ ) on atmospheric surface stream field and divergence field during 82/83 ENSO is analysed by numerical experiments. The results show that SPCZ is more important than ITCZ in developing phase and mature phase of warm event. The interaction of warm POOl and SPCZ is stronger than that of warm pool and ITCZ in the two phases. SPCZ is as important as ITCZ in the initial phase and decline phase of warm event.展开更多
Using a low-order spectral model derived from the equatorial equilibrium model, possible physical mechanisms are interpreted by the theory of multiple equilibria states for the active and break phases of the South Asi...Using a low-order spectral model derived from the equatorial equilibrium model, possible physical mechanisms are interpreted by the theory of multiple equilibria states for the active and break phases of the South Asian Monsoon, with consideration of the effects of heating by cumulus heating and cooling by radiation. The result shows that the South Asian Monsoon is active when the cumulus convection intensifies (or the radiation cooling weakens). the monsoon breaks when the convection weakens (or the cooling intensifies). It is consistent with the hypothesis of cloud-radiation by Krishnamurti et al.展开更多
Using the equatorial balanced model and the low-corder spectral method to consider the effect of the basic flow, the primary and secondary shear flows, the nonlinear equation describing the winter and summer monsoon i...Using the equatorial balanced model and the low-corder spectral method to consider the effect of the basic flow, the primary and secondary shear flows, the nonlinear equation describing the winter and summer monsoon in south Asia is derived. The stress is on the influence of the flows on the formation,transformation and intensity of the monsoon in south Asia. The results show that the influence on the monsoon in south Asia is significantly different among the primary shear flow, the basic flow and the secondary shear flow.展开更多
文摘By using a linear and stationary atmospheric model (Luo and Jiang, 1994, Zebiak and Cane,1987) and the initial data coming from Zebiak and Cane (1987), the influence of interaction between shift of warm pool and that of the equatorial convergence zone (ITCZ and SPCZ ) on atmospheric surface stream field and divergence field during 82/83 ENSO is analysed by numerical experiments. The results show that SPCZ is more important than ITCZ in developing phase and mature phase of warm event. The interaction of warm POOl and SPCZ is stronger than that of warm pool and ITCZ in the two phases. SPCZ is as important as ITCZ in the initial phase and decline phase of warm event.
文摘Using a low-order spectral model derived from the equatorial equilibrium model, possible physical mechanisms are interpreted by the theory of multiple equilibria states for the active and break phases of the South Asian Monsoon, with consideration of the effects of heating by cumulus heating and cooling by radiation. The result shows that the South Asian Monsoon is active when the cumulus convection intensifies (or the radiation cooling weakens). the monsoon breaks when the convection weakens (or the cooling intensifies). It is consistent with the hypothesis of cloud-radiation by Krishnamurti et al.
文摘Using the equatorial balanced model and the low-corder spectral method to consider the effect of the basic flow, the primary and secondary shear flows, the nonlinear equation describing the winter and summer monsoon in south Asia is derived. The stress is on the influence of the flows on the formation,transformation and intensity of the monsoon in south Asia. The results show that the influence on the monsoon in south Asia is significantly different among the primary shear flow, the basic flow and the secondary shear flow.
