Variability of the Eastern Africa Regional Coupled Climate System

东非区域耦合气候系统的变率

• 批准号: 0111581
• 负责人: Fredrick Semazzi
• 金额: $ 55.59万
• 依托单位: North Carolina State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2005-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0111581&HistoricalAwards=false
• 关键词: Variability; Eastern; Africa; Regional; Coupled

The PIs will investigate the effect of including the hydrodynamic effects due to the large lakes in east Africa on climate variability of the region. Prior work by the PIs has demonstrated that the hydrodynamics of Lake Victoria plays a critical role in determining the coupled variability of the lake and regional climate. Adopting the traditional approach in which the model formulation is entirely based on thermodynamics and the motion in the lake is neglected, has not proven satisfactory for this region. The PIs will also study the role of coastal Indian Ocean thermodynamic forcing on climate variability of the region. In addition, the physical mechanisms responsible for extreme climate conditions over east Africa during the recent 1997-1998 El Nino Southern Oscillation event will be examined. There is strong educational collaboration related to this research between University of Nairobi, Kenya, and University of North Carolina Raleigh. The work is important because it will lead to better understanding of regional climate variability over east Africa. This has important societal benefits.

项目研究员将调查列入东非大湖对该区域气候变异性的水动力影响的影响。PI先前的工作表明，维多利亚湖的水动力学在确定湖泊和区域气候的耦合变化方面起着至关重要的作用。采用传统的方法，其中的模型制定是完全基于热力学和在湖的运动被忽略，已被证明不令人满意的这一地区。研究所还将研究印度洋沿海热力强迫对该区域气候变化的作用。此外，还将研究在最近1997-1998年厄尔尼诺南方涛动事件期间造成东非极端气候条件的物理机制。肯尼亚内罗毕大学和北卡罗来纳州罗利大学之间有与这项研究有关的强有力的教育合作。这项工作很重要，因为它将导致更好地了解东非地区的气候变化。这具有重要的社会效益。