摘要
利用广东省８６个测站近４０年（建站起至１９９４年）的降水资料，分析和讨论了平均年雨量分布的特征，并以５级旱涝标准确定了全省和各分区的逐年旱涝级别，初步讨论了若干旱涝特征。结果表明，全省平均年雨量为１７４８ｍｍ；四个主要雨量大值（年雨量２０００ｍｍ以上）中心分别位于恩平、清远、海丰和龙门；全省平均而言，１９５９、１９６１、１９７３、１９７５和１９８３年为涝年，１９５６、１９６３、１９７７和１９９１年为旱年，其中，１９７３年为特大涝年（降水距平绝对值大于标准差的两倍），１９５６年和１９６３年为特大旱年。就广东各流域的特涝和特旱年出现次数来说，西江与东江流域旱多涝少；鉴江流域则涝多旱少；北江和韩江流域有涝无旱。
Raingauge rainfall data of nearly 40 years (1951-1994) at 86 stations of Guangdong province in Southern China are used to analyze the features of dryness and wetness during the 40-year period.The results show that the area mean yearly rainfall is about 1750mm.The four centers of large rainfall are located near Enping,Qinyan,Haifong and Longmen respectively.The wet years verified are 1959,1961,1973,1975 and 1983,among which 1973 is an extremly wet yaer (the rainfall deviation is more than twice as large as the standard deviation),and the dry years are 1956,1963,1977 and 1991,of which 1956 and 1963 are extremely dry years.
出处
《热带气象学报》
CSCD
北大核心
1998年第4期297-305,共9页
Journal of Tropical Meteorology
基金
国家自然科学基金4975246课题
广东省科学基金
关键词
广东
降水
旱涝
降水量
Guangdong Province Rainfall Dryness Wetness
