Collaborative Research: Analysis and Modeling of Convectively-Coupled Equatorial Waves and the Madden-Julian Oscillation

合作研究：对流耦合赤道波和马登-朱利安振荡的分析和建模

• 批准号: 0754088
• 负责人: Patrick Haertel
• 金额: $ 14.43万
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2009-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0754088&HistoricalAwards=false
• 关键词: Collaborative; Research; Analysis; Modeling; Convectively

Tropical disturbances have a global impact on weather and climate and for this reason, it is important that their dynamics are well represented in general circulation models. The aim of the research is to study in detail the dynamical structures of two types of tropical atmospheric disturbances, convectively coupled equatorial waves (CCEWs) and the Madden-Julian oscillation (MJO), using observational and modeled data, and statistical analysis methods. Further, using a Lagrangian ocean model, upper ocean response to the MJO wind perturbations will also be studied. Three outstanding problems that will be addressed are (1) the existence of multiple conflicting theories for the mechanisms and interactions of CCEWs and the MJO, (2) the inadequacy of representations of CCEWs and MJOs in global models, and (3) uncertainties in the behavior of oceanic Kelvin waves forced by MJO-related wind perturbations.Intellectual merit: The PI will perform: (1) the analysis of the existence of multiple conflicting theories for the mechanisms and interactions of CCEWs and the MJO; (2) evaluate the inadequacy of representations of CCEWs and MJOs in GCMs; and (3) the analysis of uncertainties in the behavior of oceanic Kelvin waves forced by MJO-related wind perturbations. Broader Impacts: The research will improve our observational understanding of CCEWs and will lead to improved general circulation model simulations. This project will prepare two graduate students for careers in atmospheric sciences.

热带干扰对天气和气候产生了全球影响，因此，重要的是，在一般循环模型中，他们的动态表现得很好。该研究的目的是使用观察性数据和统计分析方法详细研究两种类型的热带大气干扰，对流耦合赤道波（CCEW）和MADDEN-JULIAN振荡（MJO）的动力结构。此外，还将研究使用拉格朗日海洋模型，上海对MJO风扰动的反应也将进行研究。将要解决的三个重大问题是（1）存在多种相互冲突的理论，这些理论是CCEWS和MJO的机制和相互作用，（2）全球模型中CCEW和MJOS表示不足，以及（3）Mojo-Jo Jo Jo Jo Jo Jo Jober witter-witter-witch witter witter的行为的不确定性。存在多种相互冲突的理论，用于CCEW和MJO的机制和相互作用； （2）评估GCMS中CCEW和MJOS表示的不足； （3）分析与MJO相关的风扰动强迫的海洋开关波的行为中的不确定性。 更广泛的影响：这项研究将改善我们对CCEW的观察性理解，并会改善一般循环模型模拟。该项目将使两名研究生为大气科学的职业做好准备。