Particulate matter indices derived from MODIS data for indicating urban air pollution
HE Junliang1, ZHANG Shuyuan1, LI Jia2, ZHA Yong3
1. Department of Resources and Environment, Shijiazhuang University, Shijiazhuang 050035, China;
2. College of Tourism and Geographical Sciences, Yunnan Normal University, Kunming 650500, China;
3. Key Laboratory of Ministry of Education for Virtual Geographic Environment, Nanjing Normal University, Nanjing 210046, China
According to the variation of MODIS apparent reflectance caused by aerosol scattering and absorption, spectral indices for urban particulate pollution were constructed, which include difference vegetation index(DVI), normalized difference haze index (NDHI), normalized difference build-up index (NDBI) and difference build-up index (DBI). Relations between the indices and particle concentrations (PM10) measured by the Shijiazhuang Environmental Monitoring Station were discussed. Coefficient analysis indicates that there is negative correlation between the particle concentrations and the spectral indices except NDHI. The MODIS DBI is linearly related to PM10. The estimating model of PM10 based on several indices makes it easier to quickly monitor and evaluate atmospheric particulate pollution in urban area.
贺军亮, 张淑媛, 李佳, 查勇. 基于MODIS的城市大气颗粒物污染指数研究[J]. 国土资源遥感, 2016, 28(2): 126-131.
HE Junliang, ZHANG Shuyuan, LI Jia, ZHA Yong. Particulate matter indices derived from MODIS data for indicating urban air pollution. REMOTE SENSING FOR LAND & RESOURCES, 2016, 28(2): 126-131.
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