Dynamical Interactions Between Storm Track Eddies and the Stationary Wave Anomalies During ENSO

小行星9314097 中纬度地区的大气行为受到热带太平洋海面温度的强烈影响，特别是在被称为厄尔尼诺的异常海面变暖期间。 本研究项目的目的是了解在这些时期内，组织高频大气运动的机制是什么，特别是时间平均流的作用。 本研究将使用一个由全大气环流模式衍生的干原始方程模式。 一个理想化的热带加热异常，代表厄尔尼诺事件期间的热带信号，将被施加在时间平均气候学上。 将通过改变热带加热异常的位置和改变应用异常的时间平均基本状态来测试热带外气候响应的灵敏度。 结果应该提供什么决定了瞬态的组织的见解。 这项研究可能为改善厄尔尼诺事件期间的天气预报提供依据。 ***

9314097 Ting The behavior of the atmosphere in midlatitudes is strongly influenced the sea surface temperatures in the tropical Pacific, particularly during the periods of anomalous sea surface warming known as El Nino. The purpose of this research project to understand what mechanisms are at work during these periods which act to organize the higher frequency atmospheric motions, particularly the role of the time mean flow. A dry primitive equation model, derived from a full general circulation model, will be used for this study. An idealized tropical heating anomaly, representing the tropical signal during an El Nino event, will be imposed on the time mean climatology. Sensitivity of the extratropical response will be tested by varying the location of the tropical heating anomaly and by changing the time mean basic states to which the anomaly is applied. The results should provide insights into the what determines the organization of the transients. This research may provide a basis for improving weather forecasting during El Nino events. ***