The Mechanisms for Extratropical Atmospheric Response to SST Anomaly: Interaction Between Direct and Indirect Responses

温带大气对海温异常的响应机制：直接响应与间接响应之间的相互作用

• 批准号: 9422507
• 负责人: Sumant Nigam
• 金额: $ 26.33万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-05-01 至 1999-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9422507&HistoricalAwards=false
• 关键词: Mechanisms; Extratropical; Atmospheric; Response; SST

This grant aims at achieving deeper understanding of the direct and indirect extratropical response to tropical SST anomalies. The novelty here is to examine the global response to tropical SST anomalies as a slowly evolving dynamical process (instead of a steady process as in the previous studies). The indirect response includes the process of organizing extra tropical transient eddies in to stormtrack anomalies and the subsequent symbiotic development of the anomalies in both large-scale quasi-stationary waves and storm tracks. In practical terms, this research is important for improving seasonal to interannual climate forecasting by dynamical physical methods and, in theoretical terms, this is basic research that leads to a better understanding of dynamical processes at work in the long range evolution of climate and weather.***

这项赠款旨在更深入地了解对热带SST异常的直接和间接室外反应。 这里的新颖性是将对热带SST异常的全球响应视为一个缓慢发展的动力学过程（而不是像以前的研究一样稳定的过程）。 间接响应包括在大规模的准定期波和风暴轨迹中组织额外的热带瞬态涡流以及随后异常的共生发展。 实际上，这项研究对于通过动态物理方法改善季节性到年际气候预测至关重要，从理论上讲，这是基础研究，可以更好地理解气候和天气远距离演变的工作动态过程。 ***