Dynamical Influences on Stratocumulus-Aerosol Interactions in the Southern Hemisphere

对南半球层积云-气溶胶相互作用的动力学影响

• 批准号: 1233874
• 负责人: Paquita Zuidema
• 金额: $ 44.6万
• 依托单位: University of Miami
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-08-01 至 2017-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1233874&HistoricalAwards=false
• 关键词: Dynamical; Influences; Stratocumulus; Aerosol; Interactions

This project has the following goals: (i) to undertake the analysis the Variability of the American Monsoon Systems (VAMOS) Ocean-Coupled-Atmosphere-Land-System (VOCALS) datasets; and (ii)to assess aerosol-cloud interactions for the southeast Atlantic and the dynamics that affect them. Precipitation impacts on aerosol indirect effects will be examined using remotely-sensed airborne VOCALS datasets and satellite-derived values. Aerosol transport pathways, their influence on and interactions with the southeast Atlantic stratocumulus deck at synoptic and diurnal time scales will also be examined, using a suite of observational datasets and reanalyses encompassing multiple years. A combination of approaches (empirical orthogonal functions, compositing, and backtrajectories and Lagrangian particle dispersion modeling) will be utilized. This project will improve understanding the dynamical influences on aerosol-cloud interactions in the Southern Hemisphere. This has the potential to improve the capability of future climate predictions; thus this activity has substantial broader impacts.

本项目有以下目标：(i)分析美国季风系统（VAMOS）海洋-大气-陆地耦合系统（VOCALS）数据集的变率；（ii）评估东南大西洋气溶胶与云的相互作用以及影响它们的动力学。降水对气溶胶间接效应的影响将使用遥感机载VOCALS数据集和卫星衍生值进行研究。还将利用一套多年观测数据集和再分析，在天气和日时间尺度上研究气溶胶输送途径及其对东南大西洋层积云甲板的影响和相互作用。结合方法（经验正交函数，合成，反轨迹和拉格朗日粒子色散建模）将被利用。这个项目将提高对南半球气溶胶-云相互作用的动力学影响的理解。这有可能提高未来气候预测的能力；因此，这项活动具有相当广泛的影响。