The role of dynamic transport in the formation of the inverted charge structure in a simulated hailstorm
文献类型：期刊论文
| 作者 | Xu LiangTao1,2,3; Zhang YiJun1,3; Liu HengYi1,3; Zheng Dong1,3; Wang Fei1,3 |
| 刊名 | Science china-earth sciences
 |
| 出版日期 | 2016-07-01 |
| 卷号 | 59期号:7页码:1414-1426 |
| 关键词 | Severe storm Mesoscale model Inverted charge structure |
| ISSN号 | 1674-7313 |
| DOI | 10.1007/s11430-016-5293-9 |
| 通讯作者 | Xu liangtao(xult@camscma.cn) |
| 英文摘要 | The inverted charge structure formation of a hailstorm was investigated using the advanced weather research and forecasting (wrf-arw) model coupled with electrification and discharge schemes. different processes may be responsible for inverted charge structure in different storms and regions. a dynamical-derived mechanism of inverted charge structure formation was confirmed by the numerical model: the inverted structure was formed by strong updraft and downdraft under normal-polarity charging conditions such that the graupel charged negatively in the main charging region in the middle-upper level of the cloud. the simulation results showed the storm presented a normal charge structure before and after hail-fall; while during the hail-fall stage, it showed an inverted charge structure-negative charge region in the upper level of the cloud and a positive charge region in the middle level of the cloud-appearing at the front edge near the strong updraft in the hailstorm. the charging processes between the two particles mainly occurred at the top of the cloud, where the graupel charged negatively and ice crystals positively due to the strong updraft. when the updraft air reached the top of the storm, it would spread to the rear and front. the light ice crystals were transported backward and forward more easily. meanwhile, the positively charged ice crystals were transported downward by the frontal subsidence, and then a positive charge region formed between the -10 and -25a degrees c levels. subsequently, a negative charge region materialized in the upper level of the cloud, and the inverted charge structure formed. |
| WOS关键词 | SEVERE THUNDERSTORM ELECTRIFICATION ; BULK MICROPHYSICS PARAMETERIZATION ; GROUND LIGHTNING POLARITY ; ELECTRICAL STRUCTURE ; SQUALL-LINE ; PART II ; SUPERCELL ; MODEL ; STORMS ; STEPS |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000379345900009 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2374612 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Xu LiangTao |
| 作者单位 | 1.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China 3.Chinese Acad Meteorol Sci, Lab Lightning Phys & Protect Engn, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu LiangTao,Zhang YiJun,Liu HengYi,et al. The role of dynamic transport in the formation of the inverted charge structure in a simulated hailstorm[J]. Science china-earth sciences,2016,59(7):1414-1426. |
| APA | Xu LiangTao,Zhang YiJun,Liu HengYi,Zheng Dong,&Wang Fei.(2016).The role of dynamic transport in the formation of the inverted charge structure in a simulated hailstorm.Science china-earth sciences,59(7),1414-1426. |
| MLA | Xu LiangTao,et al."The role of dynamic transport in the formation of the inverted charge structure in a simulated hailstorm".Science china-earth sciences 59.7(2016):1414-1426. |
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来源：中国科学院大学
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