Based on the hourly rainfall data collected in 2010-2023 from a national basic meteorologi-cal station and 30 regional automatic weather stations in Yingde(a total of 31 observation sites)and with the use of linear regression analysis and correlation analysis,the spatiotemporal distribution characteristics of short-term intense rainfall(to be referred to as"SI_rainfall"hereafter)at various intensity levels were stud-ied.The results are shown as follows.For Yingde,the SI_rainfall tended to rise in frequency by the year,correlating with the annual rainfall amount positively.It occurred frequently above the rain rate of 40 mm/h.The SI_rainfall concentrated in the rainy season(from April to September),mostly in May and June.Its di-urnal range was multi-modal in the first half of the rainy season but unimodal in the second half.The SI_rainfall mainly occurred post-midday.There were two cores of the SI_rainfall,located in the central-and southern-part and the northwestern part of Yingde,respectively.
维普
万方数据