DOI: 10.1016/j.atmosres.2018.12.019
Scopus记录号: 2-s2.0-85059227418
论文题名: Effects of convection over the Tibetan Plateau on rainstorms downstream of the Yangtze River Basin
作者: Zhao Y. ; Xu X. ; Liu L. ; Zhang R. ; Xu H. ; Wang Y. ; Li J.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2019
卷: 219 起始页码: 24
结束页码: 35
语种: 英语
英文关键词: C-band frequency-modulated continuous-wave radar echo intensity
; Convection
; Rainstorm
; Tibetan Plateau
; Water vapor flux vortex
Scopus关键词: Continuous wave radar
; Frequency modulation
; Heat convection
; Rain gages
; Thunderstorms
; Vortex flow
; Water vapor
; Watersheds
; Weather forecasting
; C-bands
; Central Tibetan plateau
; National centers for environmental predictions
; Rainstorm
; Scientific experiments
; Tibetan Plateau
; Water vapor flux
; Weather research and forecasting
; Rivers
; air mass
; atmospheric convection
; atmospheric transport
; raingauge
; rainstorm
; vortex flow
; water vapor
; weather forecasting
; China
; Nagchu
; Qinghai-Xizang Plateau
; Xizang
; Yangtze Basin
英文摘要: This study investigated the effect of convection over the Naqu region of the central Tibetan Plateau (TP) on rainstorms in the downstream areas of the Yangtze River Basin (YRB) accompanied by water vapor transport during August 15–19, 2014. The hourly maximum C-band frequency-modulated continuous-wave (C-FMCW) radar echo intensity at Naqu obtained from the Third Tibetan Plateau Atmospheric Scientific Experiment (TIPEX-III) was applied to represent local convective motion during this rainstorm process. Results based on hourly rain-gauge station data, National Centers for Environmental Prediction (NCEP) Final (FNL) Operational Global Analysis data, and Weather Research and Forecasting (WRF) simulations revealed that convection at Naqu was a strong signal over the TP. Convection over the Naqu region could impact rainstorms in the middle and lower reaches of the YRB via a three-dimensional water vapor flux vortex (WVFV) structure with high-level divergence and low-level convergence. The eastward propagation of the WVFV structure would enhance convection and thereby develop rainstorms downstream of the YRB. A FLEXible PARTicle (FLEXPART) dispersion model tracked the trajectory of air masses originating from the TP toward the middle–lower reaches of the YRB, which supported the robustness of the diagnostic results. © 2018 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122326
Appears in Collections: 气候变化事实与影响
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作者单位: Nanjing University of Information Science and Technology, Nanjing, 210044, China; State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, 100081, China; Henan Province Climate Center, Zhengzhou, 450003, China
Recommended Citation:
Zhao Y.,Xu X.,Liu L.,et al. Effects of convection over the Tibetan Plateau on rainstorms downstream of the Yangtze River Basin[J]. Atmospheric Research,2019-01-01,219