TITLE:
Analysis of Heavy Precipitation Process in North China from August 23 to 24, 2020
AUTHORS:
Yunfei Qi
KEYWORDS:
North China, Short Time Heavy Precipitation, Typhoon, Convective Weather
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.11 No.4,
April
28,
2023
ABSTRACT: In
order to better understand the formation mechanism of rainstorm in China and
promote disaster prevention and reduction, based on the meteorological data of
National Meteorological Information Center and Japan Meteorological Agency, this paper draws the isobaric surface map of 850 hPa and
500 hPa, relative humidity and precipitation distribution map. In this study,
synoptic methods were used to analyze the heavy precipitation process in North
China from August 23th to 24th, 2020. The results show that 1) The formation of
short-term heavy precipitation requires sufficient water vapor and very strong
upward movement; 2) the heavy precipitation in August 23th to 24th 2020 in
North China was influenced by the upper-level trough line, cold vortex and cold
front, which made the warm and cold air strongly converge over North China,
resulting in strong convective weather; 3) the heavy rainfall over North China
was also influenced by Typhoon Bawei, which caused maximum precipitation and
air humidity.