Collaborative Research: Global Aspects of Tropical Cyclogenesis

合作研究：热带气旋发生的全球方面

• 批准号: 0432090
• 负责人: Kerry Emanuel
• 金额: $ 18.66万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-10-01 至 2007-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0432090&HistoricalAwards=false
• 关键词: Collaborative; Research; Global; Aspects; Tropical

Most of the work on tropical cyclone genesis has focussed on the local problem, i.e. what causes a particular disturbance to develop into a tropical cyclone. The PIs will focus instead on the global problem which is concerned with the relationship between large-scale climate variables and measures of global or regional tropical activity. The PIs will seek to understand and eventually predict the variations in tropical cyclone genesis frequency as the climate changes, such as in ice age simulations or climate change scenarios. Using atmospheric instability as an index, the PIs will explore the parameter space in a numerical model in order to find a bifurcation point for tropical storm development. The broader impacts of this research on tropical cyclones are found in their relation to weather and climate, and by extension to people and agriculture. The project will involve the participation of a graduate student and a post-doctoral associate.

大多数关于热带气旋形成的工作都集中在局部问题上，即是什么导致一个特定的扰动发展成热带气旋。pi将侧重于全球性问题，即大尺度气候变量与全球或区域热带活动测量之间的关系。pi将试图了解并最终预测热带气旋发生频率随气候变化的变化，例如在冰河时代模拟或气候变化情景中。以大气不稳定性为指标，pi将探索数值模式中的参数空间，以找到热带风暴发展的分岔点。这项研究对热带气旋的更广泛影响体现在它们与天气和气候的关系上，并延伸到人类和农业。该项目将涉及一名研究生和一名博士后助理的参与。