Exploring How Aerosol Optical Depth Varies in the Yellow River Basin and Its Urban Agglomerations by Decade
In this study, the spatial–temporal characteristics of AOD in the Yellow River Basin (YRB) and urban agglomerations within the basin were analyzed at a 1 km scale from 2011 to 2020 based on the MCD19A2 AOD dataset. This study shows the following: (1) From 2011 to 2020, the AOD value of the YRB showe...
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2024-12-01
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| author | Yinan Zhao Qingxin Tang Zhenting Hu Quanzhou Yu Tianquan Liang |
| author_facet | Yinan Zhao Qingxin Tang Zhenting Hu Quanzhou Yu Tianquan Liang |
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| description | In this study, the spatial–temporal characteristics of AOD in the Yellow River Basin (YRB) and urban agglomerations within the basin were analyzed at a 1 km scale from 2011 to 2020 based on the MCD19A2 AOD dataset. This study shows the following: (1) From 2011 to 2020, the AOD value of the YRB showed a declining trend, with 96.011% of the zones experiencing a decrease in AOD. The spatial distribution of AOD displayed a pattern of high in the east, low in the west, high in the south, and low in the north. The rate of decline showed a distribution pattern of fast in the southeast and slow in the northwest. (2) The AOD in the YRB showed similar characteristics in different seasons: the south and east were consistently higher than the north and west. The seasonal AOD values in the YRB showed the following pattern: summer > spring > autumn > winter. The AOD values of urban agglomeration were basically larger in spring and summer. (3) The SDE and mean center of the yearly AOD were located in the southeast and Shanxi Province, with the movement from southeast to northwest. It can be divided into three stages based on the movement trajectory: northeast–southwest round-trip movement (2011–2014), one-way movement to the northwest (2014–2018), and southeast–northwest round-trip movement (2018–2020). |
| format | Article |
| id | doaj-art-b3ddcdb2b6a449bbbda5c942da198814 |
| institution | DOAJ |
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| language | English |
| publishDate | 2024-12-01 |
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| spelling | doaj-art-b3ddcdb2b6a449bbbda5c942da1988142025-08-20T02:56:05ZengMDPI AGAtmosphere2073-44332024-12-011512146610.3390/atmos15121466Exploring How Aerosol Optical Depth Varies in the Yellow River Basin and Its Urban Agglomerations by DecadeYinan Zhao0Qingxin Tang1Zhenting Hu2Quanzhou Yu3Tianquan Liang4College of Geography and Environment, Liaocheng University, Liaocheng 252059, ChinaCollege of Geography and Environment, Liaocheng University, Liaocheng 252059, ChinaCollege of Geography and Environment, Liaocheng University, Liaocheng 252059, ChinaCollege of Geography and Environment, Liaocheng University, Liaocheng 252059, ChinaCollege of Geography and Environment, Liaocheng University, Liaocheng 252059, ChinaIn this study, the spatial–temporal characteristics of AOD in the Yellow River Basin (YRB) and urban agglomerations within the basin were analyzed at a 1 km scale from 2011 to 2020 based on the MCD19A2 AOD dataset. This study shows the following: (1) From 2011 to 2020, the AOD value of the YRB showed a declining trend, with 96.011% of the zones experiencing a decrease in AOD. The spatial distribution of AOD displayed a pattern of high in the east, low in the west, high in the south, and low in the north. The rate of decline showed a distribution pattern of fast in the southeast and slow in the northwest. (2) The AOD in the YRB showed similar characteristics in different seasons: the south and east were consistently higher than the north and west. The seasonal AOD values in the YRB showed the following pattern: summer > spring > autumn > winter. The AOD values of urban agglomeration were basically larger in spring and summer. (3) The SDE and mean center of the yearly AOD were located in the southeast and Shanxi Province, with the movement from southeast to northwest. It can be divided into three stages based on the movement trajectory: northeast–southwest round-trip movement (2011–2014), one-way movement to the northwest (2014–2018), and southeast–northwest round-trip movement (2018–2020).https://www.mdpi.com/2073-4433/15/12/1466Yellow River Basin (YRB)aerosol optical depth (AOD)urban agglomerations |
| spellingShingle | Yinan Zhao Qingxin Tang Zhenting Hu Quanzhou Yu Tianquan Liang Exploring How Aerosol Optical Depth Varies in the Yellow River Basin and Its Urban Agglomerations by Decade Atmosphere Yellow River Basin (YRB) aerosol optical depth (AOD) urban agglomerations |
| title | Exploring How Aerosol Optical Depth Varies in the Yellow River Basin and Its Urban Agglomerations by Decade |
| title_full | Exploring How Aerosol Optical Depth Varies in the Yellow River Basin and Its Urban Agglomerations by Decade |
| title_fullStr | Exploring How Aerosol Optical Depth Varies in the Yellow River Basin and Its Urban Agglomerations by Decade |
| title_full_unstemmed | Exploring How Aerosol Optical Depth Varies in the Yellow River Basin and Its Urban Agglomerations by Decade |
| title_short | Exploring How Aerosol Optical Depth Varies in the Yellow River Basin and Its Urban Agglomerations by Decade |
| title_sort | exploring how aerosol optical depth varies in the yellow river basin and its urban agglomerations by decade |
| topic | Yellow River Basin (YRB) aerosol optical depth (AOD) urban agglomerations |
| url | https://www.mdpi.com/2073-4433/15/12/1466 |
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