globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosres.2018.12.019
Scopus ID: 2-s2.0-85059227418
Title:
Effects of convection over the Tibetan Plateau on rainstorms downstream of the Yangtze River Basin
Author: Zhao Y.; Xu X.; Liu L.; Zhang R.; Xu H.; Wang Y.; Li J.
Source Publication: Atmospheric Research
ISSN: 1698095
Publishing Year: 2019
Volume: 219
pages begin: 24
pages end: 35
Language: 英语
Keyword: C-band frequency-modulated continuous-wave radar echo intensity ; Convection ; Rainstorm ; Tibetan Plateau ; Water vapor flux vortex
Scopus Keyword: 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
English Abstract: 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
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被引频次[WOS]:2   [查看WOS记录]     [查看WOS中相关记录]
Document Type: 期刊论文
Identifier: http://119.78.100.158/handle/2HF3EXSE/122326
Appears in Collections:气候变化事实与影响

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Affiliation: 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
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