Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL086825 |
Aerosol Effects on Lightning Characteristics: A Comparison of Polluted and Clean Regimes | |
Liu, Y.1,2; Guha, A.3; Said, R.4; Williams, E.1; Lapierre, J.5; Stock, M.5; Heckman, S.5 | |
2020-05-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:9 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China; India |
英文摘要 | Oceanic lightning can be a sensitive indicator of aerosol effects on lightning characteristics as thermodynamic contrast is indistinct over adjacent oceanic regions. The study presents discernable aerosol impacts on lightning characteristics by analyzing 2 years (2017-2018) of intracloud (IC) and cloud-to-ground (CG) lightning data from Earth Networks Total Lightning Network over two key regions in southern South China Sea. Mean stroke density, IC/CG ratio, +IC fraction, and +CG fraction in polluted conditions are respectively 3.7, 2, 1.2, and 5.8-fold larger than unpolluted counterparts. Total stroke contrast is further confirmed with the GLD360 network. Thermodynamic parameters conversely support slightly stronger convection over clean ocean. Clear evidence shows cloud droplet size diminishes with added aerosol. Aerosol invigorates more frequent and robust mixed-phase development, endowing maritime convection with continental characteristics. Modifications in the charge reversal temperature and lower and upper positive charge regions are speculated on as means for stimulating more positive ICs and CGs. |
英文关键词 | lightning aerosol effects intracloud lightning cloud-to-ground lightning thermodynamic effects |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000536639500026 |
WOS关键词 | THUNDERSTORM ELECTRIFICATION ; PERFORMANCE-CHARACTERISTICS ; CONVECTIVE CLOUDS ; URBAN AREAS ; PRECIPITATION ; MICROPHYSICS ; ENHANCEMENT ; CONTRAST ; DENSITY ; HOUSTON |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/279922 |
专题 | 气候变化 |
作者单位 | 1.MIT, Dept Civil & Environm Engn, 77 Massachusetts Ave, Cambridge, MA 02139 USA; 2.Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai, Peoples R China; 3.Tripura Univ, Dept Phys, Agartala, Tripura, India; 4.Vaisala Inc, Louisville, CO USA; 5.Earth Networks, Germantown, MD USA |
推荐引用方式 GB/T 7714 | Liu, Y.,Guha, A.,Said, R.,et al. Aerosol Effects on Lightning Characteristics: A Comparison of Polluted and Clean Regimes[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(9). |
APA | Liu, Y..,Guha, A..,Said, R..,Williams, E..,Lapierre, J..,...&Heckman, S..(2020).Aerosol Effects on Lightning Characteristics: A Comparison of Polluted and Clean Regimes.GEOPHYSICAL RESEARCH LETTERS,47(9). |
MLA | Liu, Y.,et al."Aerosol Effects on Lightning Characteristics: A Comparison of Polluted and Clean Regimes".GEOPHYSICAL RESEARCH LETTERS 47.9(2020). |
条目包含的文件 | 条目无相关文件。 |
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