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Diagnostic analysis on a consecutive rainstorm process appearing in May 2015 of Guangxi
Author(s): Huang Yuan-pan-, Lin Zheng-Ming-, Ge Yi-huo-, Yang Sheng-cai-, Hezhou Municipal Meteorological Service, Guangxi Meteorology Disaster Reduction Institute
Pages: 59-
63
Year: 2015
Issue:
4
Journal: Journal of Meteorological Research and Application
Keyword: large-scale circulation; mesoscale analysis; southwest jet; physical quantity;
Abstract: Based on conventional observation data of MICAPS, a consecutive rainstorm process appearing in May 2015 of Guangxi was analyzed. The results show that:(1) East Asia deep trough guides ground cold waves constantly influencing Guangxi, southwest airflow of northwest edge of subtropical high is advantageous to the supplement of water vapor and instability energy. The south China area has been in the low trough area between two high troughs, Guangxi continuously was affected by positive vortices advection. Northeast diverging area of 200 h Pa South Asia high created good upper divergence for the occurrence of heavy rain.( 2) Configuration of active southwest monsoon rapids and low-latitude mesoscale system is good background of thunderstorms and consecutive heavy rain weather.( 3) The evolution characteristic of moisture conditions the evolution of the dynamic conditions developing in northwest Guangxi and then expanding eastward has very good guidance for rainstorm forecast.
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