Numerical Simulation of the Global Atmosphere

全球大气的数值模拟

• 批准号: 9122153
• 负责人: Carlos Mechoso
• 金额: $ 28.5万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-05-15 至 1995-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9122153&HistoricalAwards=false
• 关键词: Numerical; Simulation; Global; Atmosphere

This research addresses primarily the air-sea interaction problem from a GCM perspective. The focus is on two major issues: 1) Variability of the Atlantic climate, including the sensitivity of the atmospheric circulation to sea surface temperature (SST) anomalies, inter-basin relations of SST anomalies, and feedbacks on the ocean of the altered atmospheric circulation, and 2) The impact of improved parameterizations of clouds processes and cloud amount on modeling water vapor feedback in the atmospheric response to change in SST of the type expected due to increased concentration of greenhouse gases. The approach for investigation is based on numerical experimentation with the UCLA atmospheric general circulation model (AGCM). This research is important because it seeks to give a predictive understanding of the most important processes affecting climate variability and change.

本研究主要从GCM的角度研究海-气相互作用问题。重点关注两个主要问题：1)大西洋气候的可变性，包括大气环流对海表面温度异常的敏感性，海温异常的流域间关系，以及大气环流变化对海洋的反馈。2)改进的云过程和云量的参数化对模拟大气中水汽反馈对由于温室气体浓度增加而预期的SST变化的响应的影响。研究方法基于UCLA大气环流模式(AGCM)的数值试验。这项研究之所以重要，是因为它试图对影响气候变异性和变化的最重要过程有一个预测性的了解。