摘要
文章利用2011-2021年广州黄埔地区37个自动气象站的逐小时降水资料,对该地短时强降水的时空分布特征进行研究。文章分析了短时强降水的空间分布和成因,同时对短时强降水的年变化、月变化和日变化特征及成因进行了详细分析,得出该地区中部短时强降水发生频次高、南北部发生频次低,每年5,6,8月为短时强降水频发时段,前汛期日变化呈单峰型分布,后汛期日变化呈双峰型分布的结论。所得结论以期为短时强降水特征分析提供有效的参考。
Based on the hourly precipitation data of 37 automatic weather stations in Huangpu District of Guangzhou from 2011 to 2021,this paper studies the temporal and spatial distribution characteristics of short-term heavy precipitation in this area.This paper analyzes the spatial distribution and causes of short-term heavy rainfall,and analyzes the characteristics and causes of annual,monthly and daily changes of short-term heavy rainfall.It is concluded that the frequency of short-term heavy precipitation in the central part of the region is high,and the frequency of short-term heavy precipitation in the north and south is low.The May,June and August are frequent periods of short-term heavy precipitation every year.The diurnal variation of the pre-flood season is unimodal distribution,and the diurnal variation of the post-flood season is bimodal distribution.The conclusions are expected to provide an effective reference for the analysis of short-term heavy rainfall characteristics.
作者
黄景
夏丰
蔡桓
廖碧婷
黄晓云
李黎微
Huang Jing;Xia Feng;Cai Huan;Liao Biting;Huang Xiaoyun;Li Liwei(Huangpu Meteorological Burean of Guangzhou,Guangzhou 510700;Guangzhou Institute of Tropical and Marine Meteorology,China Meteorological Administration,Guangzhou 510641)
出处
《气象水文海洋仪器》
2023年第4期36-39,共4页
Meteorological,Hydrological and Marine Instruments
基金
国家重点研究发展计划(2022yfc3004101)
国家自然科学基金(U22422203,41975138,41905047)
广东省自然科学基金(2021A1515011415)
广东省气象局科学技术研究项目(GRMC2020M01)资助。
关键词
短时强降水
时空分布
广州黄埔
地形强迫
short-term heavy rainfall
spatial and temporal distribution
Guangzhou Huangpu
terrain forcing
