Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1007/s11356-022-19049-6 |
| Exploring the relationships between ground-measured particulate matter and satellite-retrieved aerosol parameters in China | |
| Yin, Shuai | |
| Corresponding Author | Yin, S (corresponding author)，Natl Inst Environm Studies, Earth Syst Div, Tsukuba, Ibaraki 3058506, Japan. |
| Journal | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| ISSN | 0944-1344 |
| EISSN | 1614-7499 |
| Year Published | 2022-02 |
| Abstract in English | In this study, the PM2.5 and PM10 concentrations from 367 cities in China were integrated with MODIS-retrieved aerosol optical depth (AOD) and Angstrom exponent (AE) data to explore the relationship between ground-measured surface particle concentrations and remote-sensing aerosol parameters. The impact of meteorological and topographical factors and seasonality were also taken into consideration and the partial least squares (PLS) regression model was adopted to evaluate the effects of surface particulate matter (PM) concentration and meteorological factors on the variation of aerosol parameters. PM concentrations and aerosol parameters all presented strong spatial disparity and seasonal patterns in China. After implementation of stringent clean air actions and policies, both the ground-measured and satellite-retrieved aerosol parameters revealed that the concentrations of suspended particles in China's cities declined dramatically from 2015 to 2018. The PM/AOD ratio showed conspicuous south-north and west-east differences. The ratio was strongly correlated to meteorological and topographic factors, and it tended to be higher in arid and less polluted regions. Moreover, the dominant factors affecting seasonal PM/AOD ratios varied among China's five regions. The correlations of daily PM-AOD were always strong in southwest China and in basin terrain (e.g., Sichuan Basin and Tarim Basin). In contrast, the PM-AOD correlation was found to be negative in some cities on the Tibetan Plateau because local relative humidity makes a greater contribution to AOD variation. Since the climate is arid and the ratio of coarse particles (e.g., PM10) is much higher, PM tended to have a significantly negative correlation with AE in northwestern cities. Whereas in many southern cities, PM was positively correlated with AE because of the area's high relative humidity and aerosol hygroscopic properties. |
| Keyword in English | AOD MODIS PM2 5 PM10 Tibetan Plateau |
| Subtype | Article ; Early Access |
| Language | 英语 |
| Indexed By | SCI-E |
| WOS ID | WOS:000752216000006 |
| WOS Keyword | OPTICAL DEPTH ; AIR-POLLUTION ; WAVELENGTH DEPENDENCE ; PM2.5 CONCENTRATIONS ; 2 DECADES ; AOD ; MODIS ; URBAN ; IMPACT ; DUST |
| WOS Subject | Environmental Sciences |
| WOS Research Area | Environmental Sciences & Ecology |
| Document Type | 期刊论文 |
| Identifier | http://119.78.100.177/qdio/handle/2XILL650/377326 |
| Affiliation | [Yin, Shuai] Natl Inst Environm Studies, Earth Syst Div, Tsukuba, Ibaraki 3058506, Japan |
| Recommended Citation GB/T 7714 | Yin, Shuai. Exploring the relationships between ground-measured particulate matter and satellite-retrieved aerosol parameters in China[J],2022. |
| APA | Yin, Shuai.(2022).Exploring the relationships between ground-measured particulate matter and satellite-retrieved aerosol parameters in China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH. |
| MLA | Yin, Shuai."Exploring the relationships between ground-measured particulate matter and satellite-retrieved aerosol parameters in China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2022). |
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