Page 32 - 《水资源与水工程学报》2022年第5期
P. 32
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tedslightly,whereastheinterdecadalrainfallfluctuatedgreatly;however,thereisnosignificantcorre
spondencebetweentheinterdecadalfluctuationsandtheaveragestateofextremeprecipitation.The
north-southmovementoftheMeiyubelthadasignificantimpactonextremeprecipitation.IntheYan
gtzeRiverBasinandtheHuaiheRiverBasininJiangsuarea ,theannualprecipitationanomalieswereas
sociatedwithstrongprecipitation,sointheyearofabnormallyhighprecipitation,theprobabilityofex
tremeprecipitationeventswasrelativelyhigh.TheheavyrainfallintheYangtzeRiverBasinandtheHua
iheRiverBasininJiangsuareahaveincreasedanddecreasedmanytimesduringrecent60years.After
2010 ,extremeprecipitationeventsstartedtoincrease,withasignificantincrementinrainfallandrainy
daysintheYangtzeRiverBasin,mostofwhichstartedearlybutfinishedlatewithaprolongedduration.
Keywords:extremeprecipitation;theMeiyuBelt;climaticcharacteristics;heavyprecipitation;ex
tremelyheavyprecipitation;JiangsuProvince
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