Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027569 |
Investigation of Lightning Flash Locations in Isolated Convection Using LMA Observations | |
Fuchs, Brody R.; Rutledge, Steven A. | |
2018-06-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:11页码:6158-6174 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Using Lightning Mapping Arrays (LMAs), lightning flash locations in three dimensions have been investigated using multiple methods. Approximately 500,000 flashes were analyzed to reveal the variability of lightning initiation and propagation within convective storms. These flashes were produced by over 4,000 isolated convective storms during one warm season across diverse weather regimes in northern Alabama, Washington, D.C., central Oklahoma, and northeastern Colorado. Lightning locations are analyzed within the context of radar reflectivities and examined for vertical variability. Results show that storms in Colorado preferentially produced flashes at lower altitudes and in regions of higher reflectivity compared to the other regions. The regional differences in flash altitudes are largely attributed to the prevalence of anomalous polarity storms (middle- or low-level dominant positive charge) in Colorado, as anomalous storms produced a majority of flashes at lower altitudes compared to storms with normal polarity charge structures (middle-level negative charge). Conversely, anomalous storms are exceedingly rare in the other regions of study. The differences in flash altitudes are coincident with discrepancies between annual average densities estimated by satellite observations and LMA. Specifically, large differences in annual average flash density estimates exist in northeastern Colorado, which are not present in the other regions, suggesting that the lower altitude flashes in Colorado may be more difficult to detect by satellites. |
英文关键词 | lightning microphysics satellite detection atmospheric chemistry |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000436110800024 |
WOS关键词 | TROPOSPHERIC OZONE PRODUCTION ; CONTINENTAL UNITED-STATES ; CHARGE STRUCTURE ; MAPPING ARRAY ; STERAO-A ; MODEL SIMULATIONS ; GENERATED NOX ; THUNDERSTORM ; STEPS ; SATELLITE |
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/33602 |
专题 | 气候变化 |
作者单位 | Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA |
推荐引用方式 GB/T 7714 | Fuchs, Brody R.,Rutledge, Steven A.. Investigation of Lightning Flash Locations in Isolated Convection Using LMA Observations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(11):6158-6174. |
APA | Fuchs, Brody R.,&Rutledge, Steven A..(2018).Investigation of Lightning Flash Locations in Isolated Convection Using LMA Observations.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(11),6158-6174. |
MLA | Fuchs, Brody R.,et al."Investigation of Lightning Flash Locations in Isolated Convection Using LMA Observations".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.11(2018):6158-6174. |
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