中国气溶胶光学厚度时空演变特征分析  

Analysis on Space-time Characteristics of Aerosol Optical Depthin China

作　　者：薛文博[1] 武卫玲[1] 王金南[1] 杨金田[1] 雷宇[1] 汪艺梅[1] 

机构地区：[1]环境保护部环境规划院,北京100012

出　　处：《环境与可持续发展》2013年第4期17-20,共4页Environment and Sustainable Development

基　　金：环境保护公益性行业科研专项(201209001)

摘　　要：利用2005-2012年MODIS气溶胶产品分析了中国区域气溶胶光学厚度(aerosol optical depth,AOD)的变化趋势和空间分布特征。分析结果表明,与2005-2007三年均值相比,绝大部分省份2008-2010年期间AOD下降趋势非常明显,而在2011-2012年期间AOD又有所回升,但大部分地区2011-2012两年均值仍低于2005-2007三年均值,因此2005-2007年是我国气溶胶污染最严重的时期;从AOD的空间分布来看,气溶胶污染较重的地区主要集中在京津冀、长三角、华中、成渝等人口密集和工业发达地区;从典型城市AOD变化趋势来看,2005-2012年期间北京、石家庄、保定、邢台市AOD历年均值均明显高于全国平均值,京津冀城市群气溶胶污染异常严重。In the paper, we analyzed the trends and spatial distribution characteristics of aerosol optical depth, in China by using MODIS products from 2005 to 2012. The results showed that AOD in most of provinces between 2008 and 2010 decreased clearly compared with the mean value between 2005 and 2007, but in 2011 -2012 AOD rose again to some extent, in most areas AOD in 2011 -2012 is still lower than the mean during 2005 -2007. Therefore, the most serious period of aerosol pollutions is 2005 -2007. Knowing from the spatial distributionaerosol pollutions are mainly concentrated indensely populated areas or industrialized areas such as Beijing - Tianjin - Hebei, Yangtze River Delta, Central China, and Chengdu - Chongqing. This research also highlighted the trends of AOD in typical cities including Beijing, Shijiazhuang, Baoding and Xingtai, where AOD is clearly higher than the national average during 2005 - 2012, and the aerosol pollutions are extremely serious in Beijing, Tianjin and Hebei province.

关 键 词：MODIS 气溶胶光学厚度(aerosol optical DEPTH AOD) PM2 5 

分 类 号：X513[环境科学与工程—环境工程]