U.S.-China Cooperative Research (Meteorology): Atmospheric Front-Boundary Layer Processes

中美合作研究（气象）：大气锋边界层过程

• 批准号: 9113566
• 负责人: William Blumen
• 金额: $ 1.91万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-01-15 至 1994-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9113566&HistoricalAwards=false
• 关键词: U.S.; China; Cooperative; Research; Meteorology

Interaction between the earth's atmosphere and the ground is primarily confined to a relatively thin atmospheric layer (about 1 km deep, the planetary boundary layer. There are observations available, primarily in the lowest few hundred meters of the atmosphere, that depict the distribution of wind, temperature and humidity that accompany the passage of a front. Fronts are often accompanied by severe weather: there is a need to diagnose the physical processes that are associated with fronts, and to predict their movement and severity. Yet there are few if any models, that can provide a fundamental conceptual framework upon which to analyze low-level observations taken during frontal passages. The proposed research is designed to develop a planetary boundary layer model that may be used for the analysis of meteorological variables that accompany the passage of an atmospheric front. Available data will be used to evaluate the relative importance of different physical processes, and to reduce the model to a form that is amenable to analysis. Independent data are expected to be available from instrumented meteorological tower measurements in the People's Republic of China, and from the U.S. National Weather Experiment (STORM) observational array in the mid-west (during the winter of 1992). These data may be used to verify model predictions, and to refine the model for use as a diagnostic tool in planetary boundary studies. This work is particularly relevant to STORM related activities during the 1990's and to work presently being carried out in the Severe Meso-Scale Laboratory of Nanjing University.

地球大气层和地面之间的相互作用 主要局限于相对较薄的大气层（约 1公里深，行星边界层。 有观测 主要分布在海拔最低的几百米处， 大气层，描绘了风，温度和 伴随着锋面通过的湿气。 前线往往 伴随着恶劣的天气：有必要诊断 与前沿相关的物理过程， 预测它们的运动和严重程度。 然而， 模型，可以提供一个基本的概念框架， 用来分析锋面期间的低层观测 段落。 拟议中的研究旨在制定一个行星边界 层模式，可用于分析气象 伴随着大气锋面通过的变量。 现有数据将用于评估相对重要性 不同的物理过程，并将模型简化为 可以分析的形式。 独立的数据预计将可从仪器 中华人民共和国气象塔测量 美国国家天气实验（STORM） 中西部的观测阵列（1992年冬季）。 这些数据可用于验证模型预测，并改进 行星边界诊断模型 问题研究 这项工作与风暴相关特别相关 1990年代的活动和目前正在进行的工作 在南京大学的严重中尺度实验室。