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	基于MODIS数据的北京气溶胶类型特性与影响因素分析
其他题名	Aerosol Types and Its Affecting Factors over Beijing: Based on MODIS Data
	邬明权 1; 牛铮 1; 乔玉良 2; 吴朝阳 1
ISSN	1560-8999
出版年	2009
卷号	11 期号:4 页码:541-548
中文摘要	应用北京城区2001-2007年间的MODIS气溶胶产品及辅助气象数据,分析了北京气溶胶类型特性及其变化趋势,以及风速、降水与气温等气候条件对其的影响.根据AOT550-FM关系模型,将北京气溶胶分成城市/工业型(UI),沙尘型(DD),干净海洋型(CM)和混合型(MT)4种类型,并在此基础上,结合辅助气象数据,分析了气候对总体气溶胶和各类型气溶胶的影响.研究表明,受风向、气温、降水等气候因素影响,北京气溶胶在5月取得最大值,北京气溶胶的主要类型为沙尘型气溶胶(DD)和混合型气溶胶(UI),而主要影响气溶胶为沙尘型气溶胶(DD)和城市/工业型气溶胶(UI).在2001-2007年间,城市/工业型气溶胶(UI)有较明显的增长,沙尘型气溶胶(DD)则呈现为与地面统计数据相符的下降趋势,总体气溶胶和其他类型气溶胶都处于基本稳定状态,北京大气环境基本稳定.
英文摘要	Through a contrastive analysis between aerosol production(MOD04_L2)of the Moderate Resolution Imaging Spectroradiometer(MODIS) and measured surface aerosol data,we verified the feasibility of using MODIS aerosol production(MOD04_L2)in analysis of aerosol spatial-temporal distribution.Then,using two data sets of the MODIS aerosol production from 2001 to 2007,i.e.the optical thickness at 550nm(AOT550) and the ratio of optical depth of small mode versus effective optical depth(FM),with help of auxiliary climate data,aerosol characteristics,mechanism of aerosol change,and affections of wind speed,precipitation and temperature on aerosol were analyzed.Based on the model between AOT550 and FM,this paper discriminates the aerosol to four types: urban/industrial(hereafter UI),clean maritime(CM),desert dust(DD),and mixed types(MT),and analyzed the effects of wind speed,precipitation and temperature to total aerosol and different aerosol types.Results showed that,(1)effected by climate factors such as wind direction,temperature and precipitation,the AOT got the maximal value in May and the minimal value in November;(2)main AOT types of Beijing were desert dust aerosol(DD)and mixed types aerosol(MT);(3)main influencing AOT types of Beijing were desert dust aerosol(DD)and urban/industrial aerosol(UI).From 2001 to 2007,urban/industrial aerosol(UI)had an obvious increased affection caused by rapid increase of cars in Beijing.Desert dust aerosol(DD)had a downtrend matched with statistic data,whereas total aerosol and other two aerosol types were keeping steady.On the whole,the atmosphere environment of Beijing was keeping stable.
中文关键词	气溶胶类型 ; 北京
英文关键词	AOT MODIS aerosol optical depth MODIS aerosol types Beijing
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:3660735
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223412
作者单位	1.中国科学院遥感应用研究所, 遥感科学国家重点实验室, 北京 100101, 中国; 2.太原理工大学矿业工程学院, 太原, 山西 030024, 中国
推荐引用方式 GB/T 7714	邬明权,牛铮,乔玉良,等. 基于MODIS数据的北京气溶胶类型特性与影响因素分析[J],2009,11(4):541-548.
APA	邬明权,牛铮,乔玉良,&吴朝阳.(2009).基于MODIS数据的北京气溶胶类型特性与影响因素分析.,11(4),541-548.
MLA	邬明权,et al."基于MODIS数据的北京气溶胶类型特性与影响因素分析".11.4(2009):541-548.