Regional Model Studies of African Waves and Sahel Climate Variability

非洲海浪和萨赫勒气候变化的区域模型研究

• 批准号: 0089563
• 负责人: Leonard Druyan
• 金额: $ 35.69万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-03-15 至 2004-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0089563&HistoricalAwards=false
• 关键词: Regional; Model; Studies; African; Waves

Under this award, the PIs will study the climatology and interannual variability of African easterly wave disturbances as simulated by a 50 km resolution Regional Climate Model (RCM). Multiple 4-month RCM simulations will be undertaken. The PI will examine the physical processes responsible for the Atlantic sector African climate variability and predictability on seasonal, interannual and decadal time scales. The RCM will be used in a purely predictive mode with persistent SSTA and GCM-predicted lateral boundary conditions. Work will be undertaken in collaboration with the Niger Meteorological Service. In the final phase of the project, the climate response to greenhouse gas buildup will also be studied. The work is important because it will increase our knowledge of west African climate variability and predictability. This could have important societal impacts.

根据该奖项，PIS将研究由50公里分辨率的区域气候模式(RCM)模拟的非洲东风波扰动的气候学和年际变化。将进行多个为期4个月的RCM模拟。PI将审查在季节、年际和十年时间尺度上造成大西洋地区非洲气候变异性和可预测性的物理过程。RCM将在纯预测模式下与持续的SSTA和GCM预测的侧边界条件一起使用。将与尼日尔气象局合作开展工作。在该项目的最后阶段，还将研究气候对温室气体积累的反应。这项工作很重要，因为它将增加我们对西非气候变异性和可预测性的了解。这可能会产生重要的社会影响。