The Link Between Galactic Cosmic Rays and Cloud Condensation Nuclei Abundance in the Marine Atmosphere

银河宇宙线与海洋大气中云凝结核丰度之间的联系

• 批准号: 0104966
• 负责人: Fangqun Yu
• 金额: $ 40万
• 依托单位: SUNY at Albany
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-08-01 至 2006-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0104966&HistoricalAwards=false
• 关键词: Link; Between; Galactic; Cosmic; Rays

This effort is designed to investigate whether galactic cosmic ray (GCR) variations that result from variations in solar activity can affect low cloud properties, and if so, to elucidate the physical mechanism and the magnitude of such effects. Distinct correlations between GCR intensity and average global coverage of low-level clouds have recently been reported. The P.I. will utilize a basic aerosol microphysics model constrained by data from recent field programs such as the Aerosol Characterization Experiments (ACE), and the TRACE-P (Transport and Chemical Evolution over the Pacific) to test several hypotheses for explaining the link between GCR and cloud condensation nuclei (CCN) in the atmosphere. The P.I. will investigate classical binary and ternary nucleation theories as well as his own ion-mediated nucleation (IMN) hypothesis.

这项工作的目的是调查是否银河宇宙线（GCR）的变化，太阳活动的变化导致的影响低云的属性，如果是这样的话，阐明的物理机制和这种影响的大小。 最近有报告指出，GCR强度与全球平均低云覆盖率之间存在明显的相关性。 私家侦探将利用一个基本的气溶胶微物理学模型，由最近的实地计划，如气溶胶特性实验（ACE）和TRACE-P（太平洋上空的运输和化学演变）的数据约束，以测试几个假设，解释GCR和云凝结核（CCN）之间的联系在大气中。 私家侦探将研究经典的二元和三元成核理论以及他自己的离子介导成核（IMN）假设。