Variability of Tropical Circulation and Climate

热带环流和气候的变化

• 批准号: 9403373
• 负责人: Stefan Hastenrath
• 金额: $ 51.16万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-06-01 至 1999-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9403373&HistoricalAwards=false
• 关键词: Variability; Tropical; Circulation; Climate

Abstract ATM-9403373 Hastenrath, Stefan University of Wisconsin-Madison Title: Variability of Tropical Circulation and Climate The PI will continue research on the variability of tropical circulation and climate on various time scales: (i) The annual cycle of the lower-tropospheric circulation over Subsaharan Africa and of the flow and convection patterns over tropical South America; shall be re-analyzed, (ii) The mechanisms of interannual variability will be examined; (iii) Decadal-scale evolutions as part of global change will be assessed for the Indian Ocean domain and eastern Africa, where they may help understand abrupt environmental changes in the latter part of the last century, and for the three near equatorial convection centers that play a pivotal role in the global circulation; (iv) Climate prediction work shall include method development for rainfall anomalies in equatorial East Africa and northeast Brazil, which continues to be a "target of opportunity" for experimentations with novel techniques. The various projects components are interrelated. This research is important because it strives to add to our understanding of climate processes.

摘要ATM-9403373 Hastenrath，Stefan威斯康星大学麦迪逊分校标题：热带环流和气候的变率 和平研究所将继续研究各种时间尺度上热带环流和气候的变率：㈠重新分析撒哈拉以南非洲上空对流层低层环流和热带南美洲上空气流和对流模式的年周期; ㈡审查年际变率的机制;（三）将评估印度洋区域和东非作为全球变化一部分的十年尺度演变情况，这可能有助于了解上个世纪后半期的突发环境变化，以及在全球环流中起关键作用的三个近赤道对流中心; ㈣气候预测工作应包括为赤道东非和巴西东北部的降雨量异常制定方法，其仍然是新技术实验的“机会目标”。 项目的各个组成部分是相互关联的。 这项研究很重要，因为它努力增加我们对气候过程的理解。