Based on the NCEP reanalysis data and precipitation data from 122 meteorological stations,this study examines the rainfall anomalies and mechanisms during the summer of 2021 in Shandong province.The average summer rainfall in Shandong province in 2021 exceeds the normal by 25.3％,accompanied by an increased frequency of rainfall events.Another notable characteristic of summer rainfall in Shandong province is its uniform spatial distribution,with greater rainfall in the west and less rainfall in the east.Further analysis of the three most recent La Nina events reveals that the spatial distribution anomalies of summer rainfall in Shandong province during the La Nina decay period are attributed to the intensified subtropical high.The intensity of the subtropical high serves as a significant predictor during the La Nina decay period in Shandong province.
关键词
山东夏季降水/拉尼娜/西太平洋副热带高压/位势高度场/风场
Key words
summer rainfall in Shandong/La Nina/western pacific subtropical high/potential height/wind field
维普
万方数据