The Dynamics of Storm Tracks and Jets in the Atmosphere and Ocean

大气和海洋中风暴路径和急流的动力学

• 批准号: 1139970
• 负责人: Sukyoung Lee
• 金额: $ 56.2万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-12-15 至 2016-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1139970&HistoricalAwards=false
• 关键词: Dynamics; Storm; Tracks; Jets; Atmosphere

The goals of this project are to advance knowledge of the workings of midlatitude storm tracks and their relationship with large-scale westerly jets. Improved knowledge of the physical processes that drive jets and storm tracks will lead to better understand of the variability of the closely related surface temperature and precipitation fields. The three main research objectives are as below (i) to investigate the influence of surface Ekman pumping on the intensity of storm tracks; (ii) to examine the processes that drive jet variability; and (iii) to explore whether the eddy-multiple jet interactions in studies using highly idealized models of the atmosphere and ocean hold up in more realistic models of the atmosphere and ocean, respectively. The outcome from the eddy-resolving ocean model analysis is anticipated to help improve eddy flux parameterizations for coarse resolution ocean climate models.In addition to training of graduate students, workshops for middle school teachers will be conducted. These workshops will blend science content and science pedagogy, providing teachers with implementation strategies for their classrooms. Thus the benefits to society are multi-faceted.

该项目的目标是增进对中纬度风暴路径的运作及其与大规模西风急流的关系的了解。提高对驱动急流和风暴路径的物理过程的认识，将有助于更好地了解密切相关的地表温度和降水场的变化。 三个主要的研究目标是：（i）调查地面Ekman抽吸对风暴路径强度的影响;（ii）检查驱动急流变率的过程;和（iii）探索在使用高度理想化的大气和海洋模型的研究中涡旋-多重急流相互作用是否分别适用于更现实的大气和海洋模型。预计涡度分辨海洋模式分析的结果将有助于改进粗分辨率海洋气候模式的涡度通量参数化，除了培训研究生外，还将为中学教师举办讲习班。这些讲习班将融合科学内容和科学教学法，为教师提供课堂实施战略。因此，对社会的好处是多方面的。