DOI: 10.1016/j.atmosres.2018.01.019
Scopus记录号: 2-s2.0-85042630767
论文题名: Cloud-resolving simulation and mechanistic analysis of a squall line in East China
作者: Yin L. ; Ping F. ; Mao J.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 206 起始页码: 13
结束页码: 29
语种: 英语
英文关键词: Cloud-resolving simulation
; Gravity wave
; Propagation mechanism
; Squall line
Scopus关键词: Gravity waves
; Weather forecasting
; Cloud resolving simulations
; Conceptual model
; Mechanistic analysis
; Propagation mechanism
; Squall lines
; Structural feature
; Thermodynamic structures
; Weather research and forecasting models
; Storms
; cold pool
; gravity wave
; simulation
; squall line
; updraft
; China
英文摘要: A severe squall line that occurred in east China on 12 July 2014 was simulated using the Weather Research and Forecasting model. Based on the cloud-resolving simulation results, the structural features and propagation mechanisms of the squall line were analyzed in detail. The main results were as follows: (1) The dynamic and thermodynamic structures of the simulated squall line were mainly characterized by a rain-induced cold pool in the near-ground level, front inflow in the low levels, descending rear inflow in the middle levels, and slightly ascending front-to-rear outflow in the upper levels. (2) The coupling between the low-level updrafts induced by the cold pool and the upper-level updrafts caused by the gravity wave was the main reason for the development and propagation of the squall line. (3) The descending mid-level rear inflow cut off the front inflow in the low levels and eventually resulted in the squall line's decay. Based on these findings, a conceptual model of the initial, mature and dissipating stages of the squall line is presented. © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/108906
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Laboratory of Cloud-Precipitation Physics and Severe Storms (LACS), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; University of Chinese Academy of Sciences, Beijing, 100049, China; School of Geography and Remote Sensing, Nanjing University of Information Science and Technology, Nanjing, 210044, China
Recommended Citation:
Yin L.,Ping F.,Mao J.. Cloud-resolving simulation and mechanistic analysis of a squall line in East China[J]. Atmospheric Research,2018-01-01,206