Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029238 |
Radar Reflectivity and Altitude Distributions of Lightning Flashes as a Function of Three Main Storm Types | |
Mecikalski, Retha M.; Carey, Lawrence D. | |
2018-12-13 | |
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:22页码:12814-12828 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | In an effort to improve our knowledge on the horizontal and vertical distribution of lightning initiation and propagation, similar to 500 multicells (producing a total of 72,619 flashes), 27 mesoscale convective systems (producing 214,417 flashes) and 23 supercells (producing 169,861 flashes) that occurred over northern Alabama and southern Tennessee were analyzed using data from the North Alabama Lightning Mapping Array and the Multi-Radar Multi-Sensor suite. From this analysis, two-dimensional (2-D) histograms of where flashes initiated and propagated relative to radar reflectivity and altitude were created for each storm type. The peak of the distributions occurred between 8.0 and 10.0 km (-24.0 to -38.5 degrees C) and between 30 and 35 dBZ for flashes that initiated within multicellular storms. For flashes that initiated within mesoscale convective systems, these peaks were 8.0-9.0 km (-27.1 to -34.6 degrees C) and 30- 35 dBZ, respectively, and for supercells, they were 10.0-12.0 km (-42.6 to -58.1 degrees C) and 35-40 dBZ, respectively. The 2-D histograms for the flash propagations were slightly different than for the flash initiations and showed that flashes propagated in lower reflectivities as compared to where they initiated. The 2-D histograms were also compared to test cases; the root-mean-square errors and the Pearson product moment correlation coefficient (R) were calculated with several of the comparisons having R values >0.7 while the root-meansquare errors were always <= 0.017 (<= 10%), irrespective of storm type. Finally, the mean flash sizes for the multicell, mesoscale convective system, and supercell flashes were 8.3, 9.9, and 7.4 km, respectively. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000452994100020 |
WOS关键词 | MESOSCALE CONVECTIVE SYSTEM ; ELECTRIC-FIELD ; MAPPING ARRAY ; GENERATED NOX ; REAL-TIME ; PART I ; THUNDERSTORM ; MODEL ; PRECIPITATION ; SUPERCELL |
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/32957 |
专题 | 气候变化 |
作者单位 | Univ Alabama, Atmospher Sci Dept, Huntsville, AL 35899 USA |
推荐引用方式 GB/T 7714 | Mecikalski, Retha M.,Carey, Lawrence D.. Radar Reflectivity and Altitude Distributions of Lightning Flashes as a Function of Three Main Storm Types[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(22):12814-12828. |
APA | Mecikalski, Retha M.,&Carey, Lawrence D..(2018).Radar Reflectivity and Altitude Distributions of Lightning Flashes as a Function of Three Main Storm Types.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(22),12814-12828. |
MLA | Mecikalski, Retha M.,et al."Radar Reflectivity and Altitude Distributions of Lightning Flashes as a Function of Three Main Storm Types".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.22(2018):12814-12828. |
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