Anomalous Regional Climate Event Studies with Variable-Resolution Stretched-Grid General Circulation Models

这项研究将使用一个变分辨率拉伸网格大气环流模式(SG-GCM)来进行区域异常事件的气候研究。将处理以下问题：(A)利用新出现的包含陆面模式的SG-GCM进行数值试验；(B)在季节和年际时间尺度以及区域与全球的空间尺度上进行模拟；(C)改进对影响区域气候变异性的过程的理解和建模。主要目标是模拟1997-1999年厄尔尼诺南方涛动和相关的季风环流，以25-40公里和更高的分辨率；为扩展的多年SG-GCM模拟研究季节内和年际区域气候变率；研究海面温度和陆地强迫对SG-GCM模拟的影响；研究集合积分的影响；以及为学生开发教育工具。这项工作很重要，因为SG-GCM形式主义可能被证明是区域和次区域气候研究和应用的一种可行的新方法。

The research will use a variable-resolution stretched-grid general circulation model (SG-GCM) to conduct climate studies on anomalous regional events. The following issues will be addressed: (a) numerical experimentation with new emerging SG-GCMs incorporating land-surface models; (b) simulation at seasonal and interannual temporal scales, and regional-to-global spatial scales; (c) improved understanding and modeling of processes that affect regional climate variability. The major goals are simulating the 1997-1999 El Nino Southern Oscillation and related monsoon circulation with 25-40 km and finer resolution; studying intraseasonal and interannual regional climate variability for the extended multiyear SG-GCM simulations; studying the impact of sea surface temperatures and land-surface forcing on SG-GCM simulations; studying the impact of ensemble integrations; and developing educational tools for students. The work is important because the SG-GCM formalism may prove to be a viable new approach to regional and subregional climate studies and applications.