%0 Journal Article
%T Wavelet Analysis on SO2 Pollution Index Changes of Shanghai in Recent 10 Years<br>基于小波变换的上海市近10年SO2污染指数的变化
%A WU Xiao-ling
%A ZHANG Bin
%A AI Nan-shan
%A LIU Li-jun
%A <br>吴小玲
%A 张斌
%A 艾南山
%A 刘丽君
%J 环境科学
%D 2009
%I 
%X Based on the continuous Mexican Hat wavelet transformation of time series of daily SO_2 pollution index during last 10 years in Shanghai,the multiscale variations,primary period,catastrophe point and influencing factors are analyzed.The result shows that periodical fluctuation of SO_2 pollution index varies at diverse time-scales,and the primary period of the daily variations is about 100 days;pollution pattern takes on serious in winter and light in summer in most scales due to meteorological conditions,an...
%K wavelet analysis
%K SO_2 pollution index
%K time-scale transform
%K Shanghai City<br>小波分析
%K SO2污染指数
%K 时间-尺度变换
%K 上海市
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=9B8253D40BEE34FD3454A07FF040EAE3&yid=DE12191FBD62783C&vid=340AC2BF8E7AB4FD&iid=5D311CA918CA9A03&sid=4AFA67525584BD90&eid=96FE8C839284324D&journal_id=0250-3301&journal_name=环境科学&referenced_num=1&reference_num=38