气象Issue(7)：827-834,8.DOI:10.7519/j.issn.1000-0526.2014.07.006
近52年广东开汛期特征及与前汛期降水的关系分析
Characteristics of Rain Season Onset Date and Its Relationship with First Rainy Season Precipitation of Guangdong in Recent 5 2 Years
摘要
Abstract
Based on recent 52 years (1962-2013)daily precipitation data of 86 weather stations in Guang-dong,the annual rainy season onset dates (RSOD)of each station were counted,and the characteristics of the rainy season onset and its relationship with the first rainy season precipitation were analyzed.The re-sults indicate that:(1 )The RSOD is mainly concentrated in the last dekad of March to the mid dekad of April,and there is a 94 d gap between the earliest and the latest dates;(2)The rainy season begins earlier in southeast and north of Guangdong than in the southwestern part,and the latest in Leizhou Peninsula;(3)The rainy season begins in the two types of abrupt onset and gradual onset;(4)The RSOD has an in-ter-decadal oscillation period of 15-16 years,and respective inter-annual oscillation period of 8 years and 5-6 years pre and post 1986;(5)The RSOD has good correlations with late March and April precipitation but is poor with precipitation in May,June and the first rainy season;(6)The 500 hPa circulation differs greatly between the RSOD earlier years and the later years.关键词
开汛期/年代际变化/前汛期降水/500 hPa高度场Key words
rainy season onset date/inter-decadal variation/the first rainy season precipitation/500 hPa height field分类
天文与地球科学引用本文复制引用
刘尉,罗晓玲,陈慧华,黄珍珠..近52年广东开汛期特征及与前汛期降水的关系分析[J].气象,2014,(7):827-834,8.基金项目
华南区域气象中心科技攻关重点项目（GRMC2012Z04和GRMC2014Z01）共同资助 （）
