Cloud-resolved Chemistry Simulations of Selected DC3 Thunderstorms

选定 DC3 雷暴的云解析化学模拟

• 批准号: 1522551
• 负责人: Kenneth Pickering
• 金额: $ 42.34万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-08-15 至 2020-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1522551&HistoricalAwards=false
• 关键词: Cloud; resolved; Chemistry; Simulations; Selected

The Deep Convective Clouds and Chemistry (DC3) field campaign was a (May-Jun) 2012 experiment to study the impact of deep, mid-latitude continental convective systems, including their dynamical, physical, and lightning production processes, along with the regional consequences for upper tropospheric (UT) composition and chemistry. The campaign consisted of ground-based observations in Colorado, Oklahoma, and Alabama, as well as in situ and remotely sensed sampling of the outflow and inflow of the convective storms observed from the NSF/NCAR Gulfstream V (GV) and NASA DC-8 research aircraft. This proposal seeks further analysis and modeling of the chemistry associated with specific storms observed in the DC3 project. Focused efforts include use of the DC3 observations to improve model representation of lightning flash rates along with the horizontal and vertical placement of lightning produced nitrogen oxide (LNOx) production, as well as the estimation of the magnitude of LNOx production. In addition, the convective transport of pollutants from the boundary layer to the upper troposphere in these storms will be investigated in models, as well as downward (intrusion)transport of stratospheric ozone.

深对流云和化学（DC 3）实地活动是2012年5月至6月的一项实验，旨在研究深、中纬度大陆对流系统的影响，包括其动力学、物理和闪电产生过程，沿着对对流层上部（UT）成分和化学的区域后果。 这次活动包括在科罗拉多、俄克拉荷马州和亚拉巴马进行地面观测，以及对NSF/NCAR湾流V（GV）和NASA DC-8研究飞机观测到的对流风暴流出和流入进行现场和遥感采样。该提案寻求进一步分析和建模与DC 3项目中观察到的特定风暴相关的化学。重点工作包括使用DC 3观测数据，以改善闪电率的模型表示沿着闪电产生的氮氧化物（LNOx）生产的水平和垂直位置，以及LNOx生产的幅度估计。此外，还将在模型中研究这些风暴中污染物从边界层向对流层上层的对流迁移，以及平流层臭氧的向下（侵入）迁移。