An Observational Study of the Kinematic and Microphysical Control of Lightning Properties over Alabama During Deep Convective Clouds and Chemistry (DC3)

深对流云和化学过程中阿拉巴马州闪电特性的运动学和微物理控制的观测研究 (DC3)

• 批准号: 1063573
• 负责人: Lawrence Carey
• 金额: $ 38.97万
• 依托单位: University of Alabama in Huntsville
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1063573&HistoricalAwards=false
• 关键词: Observational; Study; Kinematic; Microphysical; Control

The Deep Convective Clouds and Chemistry (DC3) field campaign to be conducted May-June 2012 is a multi-regional, multi-platform effort to determine the impact of deep midlatitude continental convective clouds and their intrinsic dynamical, physical, and electrification processes upon upper tropospheric composition and chemistry. This award will support focused measurements in the Southeastern U.S., but this research will be conducted in close coordination with other studies focused on deep convective cloud-chemistry interactions along the Front Range of Colorado and across the Southern Plains region of Oklahoma and Texas, allowing characterization of contrasting modes of convective behavior and background chemistry across these diverse regions. Support of this particular effort will facilitate collection and analysis of data including: ground-based polarimetric Doppler radar observations, mobile soundings, and total lightning mapping array observations centered on northern Alabama. These observations will be performed in coordination with overflight of aircraft especially instrumented for DC3 including the NSF/NCAR GV high-altitude jet and NASA DC-8 aircraft.The intellectual merit of this research rests on comprehensive description of convective motions responsible for rapid transport of water substance and chemical constituents from the boundary layer up to the troposphere-stratosphere interface, as well as requisite microphysical interactions key cloud electrification and subsequent production of nitrogen oxides. Broader impacts will come through graduate student education and a combination of media-based public and local school outreach, and ultimately through improved knowledge of the influence of deep atmospheric convection on the chemical composition of earth's atmosphere in the presence of natural and anthropogenic emissions.

深层对流云与化学（DC3）现场运动将于2012年5月至6月进行，是一项多区域，多平台的努力，旨在确定深层中纬度大陆对流云及其内在的动力学，物理和电气化过程对上对流层组成和化学的影响。 该奖项将支持美国东南部的重点测量，但是这项研究将与其他研究密切协调，该研究集中在科罗拉多州的前线以及俄克拉荷马州和德克萨斯州南部平原地区的深层对流云化学相互作用上进行，从而允许对对比度和背景化学的对比模式进行这些不同地区的对比模式的表征。 对这一特殊工作的支持将有助于收集和分析数据，包括：基于地面的偏光多普勒雷达观察，移动声音和以阿拉巴马州北部为中心的总闪电映射阵列观测值。 这些观察结果将与横渡飞机的横候进行协调，包括NSF/NCAR GV高空喷气机和NASA DC-8飞机。这项研究的知识分子取决于对对流运动的全面描述，负责快速运输水物质和化学构成，并恢复了微构成，并供应了台层，并供应了台层，并在指示层互动，并将其与指标层构成，并将其互动互动。钥匙云电气化并随后产生氮氧化物。 更广泛的影响将通过研究生教育以及基于媒体的公立学校和当地学校外展的结合，并最终通过提高对深度大气对流对地球大气化学成分的影响，在存在自然和人为排放的情况下。

项目成果

Radar Reflectivity and Altitude Distributions of Lightning Flashes as a Function of Three Main Storm Types

雷达反射率和闪电高度分布与三种主要风暴类型的关系

• DOI: 10.1029/2018jd029238
• 发表时间: 2018
• 期刊: Journal of Geophysical Research: Atmospheres
• 作者: Mecikalski, Retha M.;Carey, Lawrence D.
• 通讯作者: Carey, Lawrence D.

Radar Reflectivity and Altitude Distributions of Lightning as a Function of IC, CG, and HY Flashes: Implications for LNOx Production

• DOI: 10.1029/2018jd029263
• 发表时间: 2018-11
• 期刊: Journal of Geophysical Research: Atmospheres
• 作者: R. Mecikalski;L. Carey

Lightning characteristics relative to radar, altitude and temperature for a multicell, MCS and supercell over northern Alabama

• DOI: 10.1016/j.atmosres.2017.03.001
• 发表时间: 2017-01
• 期刊: Atmospheric Research
• 影响因子: 5.5
• 作者: R. Mecikalski;L. Carey