Multi-scale Analysis of African Easterly Waves

非洲东波的多尺度分析

• 批准号: 0507976
• 负责人: Christopher Thorncroft
• 金额: $ 67.24万
• 依托单位: SUNY at Albany
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-07-01 至 2009-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0507976&HistoricalAwards=false
• 关键词: Multi; scale; Analysis; African; Easterly

African easterly waves are synoptic-scale weather systems that characterize the West African monsoon and downstream tropical Atlantic developments during boreal summer. These systems have an important association with daily rainfall over tropical Africa, and they can serve as precursors for tropical cyclones that cross the Atlantic. In this project, the PI will study the lifecycle and dynamics of African easterly waves over Africa and the tropical Atlantic, and the nature and causes of intra-seasonal to inter-annual variability of African easterly wave-activity.The project involves the participation of three graduate-students.

非洲东风波是天气尺度的天气系统，其特征是在北方夏季期间西非季风和下游热带大西洋的发展。这些系统与热带非洲的日降雨量有着重要的联系，它们可以作为穿越大西洋的热带气旋的前兆。在这个项目中，PI将研究非洲和热带大西洋上空非洲东风波的生命周期和动力学，以及非洲东风波活动的季节内和年际变化的性质和原因。