灾害学2013，Vol.28Issue(2)：76-80,5.
湖南短时强降水事件气候特征
Climatic Characteristics of Short-duration Rainstorm Events in Hunan Province
摘要
Abstract
Based on the 1981 -2010 self-recording precipitation data at 97 stations of Hunan province, the Climatic characteristics of short-duration rainstorm events in Hunan Province are analyzed by mathematical statistics method. The results show that; ① The frequency of short-duration (1 hour, 3 hours and 12 hours) rainstorm e-vents in summer is higher than those in spring, and in spring higher than in autumn in Hunan Province. The frequency of daytime is higher than nighttime in summer, and exact opposite in spring and little different in autumn. ② The change trend of frequency of short-duration (1 hour, 3 hours and 12 hours) rainstorm events are increased, which 12 hours more significant increasing than others. The biggest increase trend of night and spring is in the Northwestern, and of day and summer in the Southeast. ③ The frequency of short-duration(1 hour, 3 hours and 12 hours) rainstorm events beginning time shows bimodal , 1 hour, 3 hours often start at 5: 00 - 8; 00, and 12 hours at 11: 00-14:00.关键词
短时/强降水事件/气候特征/湖南Key words
short-duration: rainstorm events: climatic characteristics: Hunan Province分类
天文与地球科学引用本文复制引用
郭凌曜,章新平,廖玉芳,段丽洁..湖南短时强降水事件气候特征[J].灾害学,2013,28(2):76-80,5.基金项目
国家自然科学基金项目(41171035,40871094) （41171035,40871094）
湖南省重点学科建设项目(2011001) （2011001）
中国气象局CCSF201212"湖南省适应气候变化战略研究" （）
