A comparative analysis of AOD in main cities and the western region of China from 2000 to 2014 based on GIOVANNI
ZHOU Jiayuan1, SHI Runhe1, 2, 3
1. School Of Geographic Sciences, East China Normal University, Shanghai 200241, China; 2. Key Laboratory of Geographic Information Science, Ministry of Education, East China Normal University, Shanghai 200241, China; 3. Joint Laboratory for Environmental Remote Sensing and Data Assimilation, ECNU and CEODE, Shanghai 200241, China
Abstract：Retrievals of aerosol optical depth (AOD) is the key data sources to carry out the study of regional air quality. The study of a long-time series of AOD needs the temporal spread and spatial expansion of AOD stripe products, involving a series of complex and professional data processing. In order to help the non-remote sensing professional researchers to correctly use the data, NASA has developed a web service workflow-based data visualization and analysis system- GIOVANNI, but this system has not yet been widely used in China. In this paper, choosing Beijing, Shanghai, Guangzhou and the western region of China as the study areas, the authors interpolated the missing data based on the variation characteristics of multi-year time series. On such a basis, the authors carried out a comparative analysis of the monthly values of AOD in main cities and the western region of China from 2000 to 2014 based on GIOVANNI. The results show that, compared with things in the western region, the averages of multi-year values of AOD in Beijing, Shanghai and Guangzhou were significantly higher, of which Shanghai was the highest, followed by Beijing. AOD in Beijing and Shanghai had significant seasonal differences, and exhibited the high levels in spring and summer and the low levels in autumn and winter. Although the averages of annual values of AOD in Beijing, Shanghai and Guangzhou showed anon significant trend from 2000 to 2014, the time series of AOD in Shanghai and Guangzhou had similarity.
周嘉源, 施润和. 基于GIOVANNI的我国主要城市与西部地区2000—2014年气溶胶光学厚度的对比[J]. 国土资源遥感, 2017, 29(3): 143-148.
ZHOU Jiayuan, SHI Runhe. A comparative analysis of AOD in main cities and the western region of China from 2000 to 2014 based on GIOVANNI. REMOTE SENSING FOR LAND & RESOURCES, 2017, 29(3): 143-148.
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2017, Vol. 29 
