Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-18-0007.1 |
Investigating the Relative Contributions of Charge Deposition and Turbulence in Organizing Charge within a Thunderstorm | |
Brothers, Matthew D.1; Bruning, Eric C.1; Mansell, Edward R.2 | |
2018-09-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2018 |
卷号 | 75期号:9页码:3265-3284 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Large-eddy-resolving simulations using the Collaborative Model for Multiscale Atmospheric Simulation (COMMAS), which contains microphysical charging and branched-lightning parameterizations, produce much more complex net charge structures than conventionally visualized from previous observations, simulations, and conceptual diagrams. Many processes contribute to the hydrometeor charge budget within a thunderstorm, including advection, hydrometeor differential sedimentation, subgrid turbulent mixing and diffusion, ion drift, microphysical separation, and the attachment of ion charge deposited by the lightning channel. The lightning deposition, sedimentation, and noninductive charging tendencies contribute the most overall charge at relatively large scales, while the advection tendency, from resolved turbulence, provides the most texture at small scales to the net charge density near the updraft region of the storm. The scale separation increases for stronger storm simulations. In aggregate, lightning deposition and sedimentation resemble the smoother distribution of the electric potential, while evidence suggests individual flashes could be responding to the fine texture in the net charge. The clear scale separation between the advection and other net charge tendencies suggest the charge advection is most capable of providing net charge texture; however, a clear-cut causality is not obtained from this study. |
英文关键词 | Turbulence Lightning Thunderstorms Cloud resolving models |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000443109700002 |
WOS关键词 | LIGHTNING FLASH SIZE ; SUPERCELL THUNDERSTORM ; CONVECTIVE STORMS ; IMAGE TEXTURE ; WIND SHEAR ; ELECTRIFICATION ; SIMULATIONS ; SEPARATION ; MODEL |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/29332 |
专题 | 地球科学 |
作者单位 | 1.Texas Tech Univ, Lubbock, TX 79409 USA; 2.NOAA, OAR, Natl Severe Storms Lab, Norman, OK USA |
推荐引用方式 GB/T 7714 | Brothers, Matthew D.,Bruning, Eric C.,Mansell, Edward R.. Investigating the Relative Contributions of Charge Deposition and Turbulence in Organizing Charge within a Thunderstorm[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2018,75(9):3265-3284. |
APA | Brothers, Matthew D.,Bruning, Eric C.,&Mansell, Edward R..(2018).Investigating the Relative Contributions of Charge Deposition and Turbulence in Organizing Charge within a Thunderstorm.JOURNAL OF THE ATMOSPHERIC SCIENCES,75(9),3265-3284. |
MLA | Brothers, Matthew D.,et al."Investigating the Relative Contributions of Charge Deposition and Turbulence in Organizing Charge within a Thunderstorm".JOURNAL OF THE ATMOSPHERIC SCIENCES 75.9(2018):3265-3284. |
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