新丰短时强降水特征及影响的物理量阈值研究

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Abstract Using hourly precipitation data from 16 automatic weather stations in Xinfeng County from 2013 to 2022,statistical and spatial interpolation methods were employed to determine that shortterm heavy rainfall in Xinfeng County mainly occurs from April to September,exhibiting a bimodal distribution with the main peak in June and the secondary peak in August;The daily variation shows a bimodal pattern,with the main peak appearing from afternoon to evening and the secondary peak appearing from early morning to morning.During the period from 2013 to 2022,there were a total of 114 largescale shortterm heavy rainfall events.The main influencing systemwas the southwest monsoon type and the cold shear type.Based on the significance test of the correlation coefficient between physical quantity parameters and shortterm heavy precipitation events,15 physical quantity parameters with shortterm heavy precipitation forecasting significance were selected according to the distribution characteristics of the value range of physical quantity parameters,and the threshold range of each physical quantity parameter in shortterm heavy precipitation events was determined as a reference for business forecasting.

Key words： short term heavy rainfall temporal and spatial distribution Xinfeng County physical quantity

Received: 07 November 2024

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	Articles by authors
	Zhong Yushan
	Tan Yali
	Pan Jianbo
	Chen Jingxia

Cite this article:

Zhong Yushan,Tan Yali,Pan Jianbo等. Study on the physical quantity threshold of characteristics and effects of short term heavy precipitation in Xinfeng[J]. Meteorological Hydrological and Marine Instrument, 2026, 43(5): 117-120.

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http://www.qxswhy.com/EN/ OR http://www.qxswhy.com/EN/Y2026/V43/I5/117

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