DOI: 10.1002/joc.6000
Scopus记录号: 2-s2.0-85061250569
论文题名: Effects of the Tibetan Plateau and its second staircase terrain on rainstorms over North China: From the perspective of water vapour transport
作者: Zhao Y. ; Xu X. ; Zhao T. ; Yang X.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2019
语种: 英语
英文关键词: North China
; rainstorm
; second staircase terrain
; Tibetan Plateau
; water vapour transport
Scopus关键词: Landforms
; Thunderstorms
; Water vapor
; Weather forecasting
; North China
; rainstorm
; second staircase terrain
; Tibetan Plateau
; Water vapour
; Stairs
英文摘要: The effects of the Tibetan Plateau (TP) and its second staircase terrain (i.e., the extension of the TP) on summer rainstorms over North China (NC) from the perspective of large-scale water vapour transport were investigated based on the frequency of summer rainstorms from 70 observational stations in NC and National Centers for Environmental Prediction reanalysis data from 1961 to 2010. Seven rainstorm cases over NC during 1981–2016 acquired from ERA-Interim reanalysis data and observational hourly precipitation data were selected. Two water vapour transport channels provided favourable backgrounds for rainstorms over NC. One channel flowed along the northern edge of the TP via westerlies. The other channel flowed along the eastern edges of the TP and its second staircase terrain accompanied with southerly monsoon airflow, with water vapour sources from the Bay of Bengal, South China Sea, and western Pacific. The abundant water vapour that was transported along the two channels not only offered a favourable moisture background for rainstorms over NC but also resulted in the development of water vapour flux vortexes that supplied convergence conditions for rainstorms in situ. At low levels, water vapour transport mainly flowed along the eastern edge of the TP second staircase terrain. The results from the Weather and Research Forecasting model simulation of a randomly selected rainstorm case originating from the TP to NC confirmed the vital effect of the TP second staircase terrain on rainstorms over NC accompanied with water vapour transport. © 2019 The Authors. International Journal of Climatology published by John Wiley & Sons Ltd on behalf of the Royal Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116640
Appears in Collections: 全球变化的国际研究计划
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作者单位: State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, China; Nanjing University of Information Science and Technology, Nanjing, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, China; Tianjin Meteorological Observatory, Tianjin, China
Recommended Citation:
Zhao Y.,Xu X.,Zhao T.,et al. Effects of the Tibetan Plateau and its second staircase terrain on rainstorms over North China: From the perspective of water vapour transport[J]. International Journal of Climatology,2019-01-01