The Influence of Surface Variations on the Mesoscale Circulations of the Los Angeles Basin

地表变化对洛杉矶盆地中尺度环流的影响

• 批准号: 8814181
• 负责人: Clifford Mass
• 金额: $ 0.53万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-11-15 至 1989-01-01
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8814181&HistoricalAwards=false
• 关键词: Influence; Surface; Variations; Mesoscale; Circulations

Using a fine-resolution mesoscale model, Professor Mass and Dr. Ulrickson will investigate how surface property variations affect diurnal flow in the Los Angeles Basin. Numerous studies have shown that variations in albedo, roughness, soil density, moisture availability, surface thermal conductivity and heat capacity can generate mesoscale weather features, but none have shown the role such variations play in an actual, complex setting. The research to be conducted is an outgrowth of Dr. Ulrickson's Ph.D. thesis research in which a number of the observed mesoscale features in Los Angeles Basin were simulated. A better parameterization of surface properties is considered the next major improvement on the model. This reserach should bring a better understanding of the interaction between surface forcing and mesoscale circulations.

利用一个高分辨率的中尺度模式，马斯教授和乌里克森博士将研究地表性质的变化如何影响洛杉矶盆地的日流量。许多研究表明，反照率、粗糙度、土壤密度、水分有效性、地表导热系数和热容量的变化可以产生中尺度天气特征，但没有一项研究表明这种变化在实际的复杂环境中发挥的作用。即将进行的研究是乌里克森博士博士论文研究的结果，其中模拟了洛杉矶盆地观测到的许多中尺度特征。曲面属性的更好的参数化被认为是对该模型的下一个重大改进。这项研究将有助于更好地理解地面强迫和中尺度环流之间的相互作用。