生态与农村环境学报2018，Vol.34Issue(1)：54-63,10.DOI:10.11934/j.issn.1673-4831.2018.01.007
基于MODIS数据的长三角地区气溶胶直接辐射效应研究
Study of Aerosol Direct Radiation Effects in the Yangtze River Delta Based on MODIS Data
摘要
Abstract
Based on relevant MODIS data and the 6S atmospheric radiation transfer model, aerosol direct radiation effects ( ADRE) on the surface of the Yangtze River Delta and the top layer of the atmosphere were simulated and calculated, and then validated for accuracy with reference to the measured data by CE-318 of the Beichen Building Station of the Nanjing University of Information Science&Technology. On such a basis, analysis was conducted of spatio-temporal distribution of ADRE in the Yangtze River Delta region, Results show that the MODIS data could be used to inverse ADRE on land sur-face and on top of the atmosphere with results approximate to the measured data, reaching 0. 92 and 0. 95 in fitting accura-cy ( R2 ) . In terms of spatial distribution and variation, ADREs on land surface (-31. 60--20. 54 W·m-2 ) and on top of the atmosphere (-3. 48--2. 61 W·m-2 ) tended to be similar with absolute values being high in the north and lower to-wards the south. The ADREs in Suzhou, Wuxi and Changzhou of South Jiangsu increased significantly;In terms of tempo-ral variation, absolute ADREs fluctuated downwards year by year, varying in the range of -21. 78--5. 94 and -2. 45--0. 73 W·m-2 , respectively, on land surface and on top of the atmosphere, and varied quite significantly with the season in Jiangsu and Shanghai and relatively less in Zhejiang in the range of-10-0 W·m-2 on land surface and-1-0 W·m-2 on top of the atmosphere.关键词
气溶胶/直接辐射效应/长江三角洲/MODISKey words
aerosol/direct radiation effects/Yangtze River Delta/MODIS分类
资源环境引用本文复制引用
周杰,陈健,张海龙,王文君..基于MODIS数据的长三角地区气溶胶直接辐射效应研究[J].生态与农村环境学报,2018,34(1):54-63,10.基金项目
国家自然科学基金(41571418) （41571418）
中国科学院太空应用重点实验室开放基金( LSU-2016-06-02) （ LSU-2016-06-02）
