季节性- ENSO相互作用的机制
Mechanisms of Seasonal - ENSO interaction
摘要：
利用Zebiak和Cane ENSO预报模式研究了季节循环与ENSO相互作用的机制。最主要的季节效应被认为是由于风辐散场，由ITCZ的季节运动，通过其对大气加热的影响。次一级的季节效应是由于背景海温和海洋上升流速度的季节性，并分析了相应的机制。结果表明，季节强迫对ENSO动力学具有一阶效应。季节强迫的重要方面可以包括在理想化的延迟振荡ENSO模式，使模式的背景季节性从稳定到不稳定状态的转变。
英文摘要：
The mechanisms of interaction between the seasonal cycle and ENSO are investigated using the Zebiak and Cane ENSO prediction model. The most dominant seasonal effect is found to be due to the wind divergence field, as determined by the seasonal motion of the ITCZ, through its effect on the atmospheric heating. The next order seasonal effects are due to the seasonality of the background SST and ocean upwelling velocity, and the corresponding mechanisms are analyzed. It is suggested that the seasonal forcing has a first order effect on ENSO's dynamics. Important aspects of the seasonal forcing may be included in idealized delayed oscillator ENSO models by making the model background seasonally shift from stable to unstable states.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
