陕西秦岭地区暴雨时空分布特征研究  

Temporal and Spatial Distribution Characters of Torrential Rain in Qinling Area of Shaanxi Province

作　　者：黄先超[1] 王晓峰[1] 康丽玮[1] 王莎[1] 

机构地区：[1]陕西师范大学旅游与环境学院,陕西西安710119

出　　处：《江西农业学报》2016年第3期103-108,共6页Acta Agriculturae Jiangxi

基　　金：国家自然科学基金项目(41371497)

摘　　要：采用线性趋势法、降水距平百分率法、Morlet小波分析法,基于19672014年的逐日降水资料,对秦岭地区暴雨的时空分布特征进行了分析。结果表明:秦岭暴雨季节性变化显著,主要集中在69月份,且20世纪80年代和21世纪初是暴雨多发期;该区暴雨呈现南高北低、东高西低的特点,具有7年和20年左右的准周期;近年来该区暴雨呈增长趋势。The temporal and spatial distribution characters of torrential rain were analyzed by using the method of linear trend,precipitation anomaly percentage,Morlet wavelet analysis and Kriging interpolation,based on the daily precipitation data from 1967 to 2014. The results showed that the torrential rain of Qinling area seasonal changed significantly,and it＇s principally appeared in June to September especially in early 1980 s and the 21 st century. The south and the east parts were more easily suffered than the north and the west parts,the torrential rain existed 7 years and 20 years quasi-periodic. Which showed a growing trend in recent years.

关 键 词：陕西 秦岭地区 暴雨 时空分布 MORLET小波分析 

分 类 号：S161.62[农业科学—农业气象学]