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Position: Home > Articles > Spatial Distribution and Change Characters of Haze in Henan Province Journal of Anhui Agricultural Sciences 2010,38 (4) 1899-1901

河南省霾的空间分布及其变化特征

作  者:
吴蓁;郑世林;席世平;王纪军
单  位:
河南省气候中心;河南省气象台
关键词:
河南省;霾;自然正交展开;空间分布;时间演变
摘  要:
应用河南省117个常规气象观测站40年的观测资料,通过聚类分析从中选出60个代表站,采用自然正交展开(EOF)方法对其40年的资料进行分解,得出河南省霾的气候特征和4种主要空间分布形式及其随时间的演变特征。分析结果表明,每年11月到次年4月是河南省霾的高发期,2个主要的霾中心位于河南省的北中部,其形成与工业发展、烟尘排放等人类活动密切相关,与地形、植被和下垫面以及降水和风的气候分布状况关系不大。4种空间分布型的变化多依赖于气象因素。各种空间分布型自20世纪80年代以来多呈现为偏少的状态。
译  名:
Spatial Distribution and Change Characters of Haze in Henan Province
作  者:
WU Zhen et al(Meteorological Observatory of Henan Province,Zhengzhou,Henan 450003)
关键词:
Henan;Haze;Empirical orthogonal function;Spatial distribution;Time evolution
摘  要:
By using 40-year observational data of 117 conventional meteorological stations of Henan Province,60 representative stations were selected by using cluster analysis.40-year data were deposed by using empirical orthogonal function(EOF) method.The climatic characteristics and the four main spatial distribution form and the evolution characteristics of haze with time in Henan Province were obtained.The results showed that November to next April was the peak period of haze in Henan Province.Two main haze centers were located in northern and central areas of Henan Province.Their formation was closely related with human activities(industrial development and dust emission.And the haze had little to do with the topography,vegetation,the underlying surface as well as the distribution of precipitation and wind climate.The changes of four kinds of spatial distribution depended more on the meteorological factors.The various spatial distribution types showed below normal state since 1980s.

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