Aerosol Monitoring from Space Using MODIS AOD Measurements over the Jing-Jin-Ji Region of China During 2000-2017
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Fei, Xiqi
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Abstract
With more severe smog events reported in China, increasing attention has been attached to air quality in China. Aerosols, the minute solid or liquid particles suspended in the atmosphere, have an immense effect on air quality. Satellites Aerosol Optical Depth (AOD) monitoring has the advantage of routinely providing spatial and temporal measurements of aerosol loading in the atmosphere. Using China’s Jing-Jin-Ji region as a study area, this thesis seeks to determine whether severe smog events could be detected by the MODIS (MODerate Resolution Imaging Spectroradiometer) 8-day AOD product; and, if there is an increasing tendency of AOD during 2000-2017 in the Jing-Jin-Ji region. Also, the AOD values of major Jing-Jin-Ji cities are compared to get the geographical distribution characteristics of the AOD. The results from this thesis aim to provide a better understanding of AOD characteristics in China’s Jing-Jin-Ji region.
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Aerosol Optical Depth (AOD), Time series, Monitoring, MODIS, Smog