Absorbing Aerosol Optical Properties and Radiative Effects on Near-Surface Photochemistry in East Asia
Absorbing aerosols have significant influences on tropospheric photochemistry and regional climate change. Here, the direct radiative effects of absorbing aerosols at the major AERONET sites in East Asia and corresponding impacts on near-surface photochemical processes were quantified by employing a...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/15/11/2779 |
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| author | Huimin Chen Bingliang Zhuang Jane Liu Yinan Zhou Yaxin Hu Yang Chen Yiman Gao Wen Wei Huijuan Lin Shu Li Tijian Wang Min Xie Mengmeng Li |
| author_facet | Huimin Chen Bingliang Zhuang Jane Liu Yinan Zhou Yaxin Hu Yang Chen Yiman Gao Wen Wei Huijuan Lin Shu Li Tijian Wang Min Xie Mengmeng Li |
| author_sort | Huimin Chen |
| collection | DOAJ |
| description | Absorbing aerosols have significant influences on tropospheric photochemistry and regional climate change. Here, the direct radiative effects of absorbing aerosols at the major AERONET sites in East Asia and corresponding impacts on near-surface photochemical processes were quantified by employing a radiation transfer model. The average annual aerosol optical depth (AOD) of sites in China, Korea, and Japan was 1.15, 1.02 and 0.94, respectively, and the corresponding proportion of absorbing aerosol optical depth (AAOD) was 8.61%, 6.69%, and 6.49%, respectively. The influence of absorbing aerosol on ultraviolet (UV) radiation mainly focused on UV-A band (315–400 nm). Under the influence of such radiative effect, the annual mean near-surface J[NO<sub>2</sub>] (J[O<sup>1</sup>D]) of sites in China, Korea, and Japan decreased by 16.95% (22.42%), 9.61% (13.55%), and 9.63% (13.79%), respectively. In Beijing–Tianjin–Hebei (BTH) and Yangtze River Delta (YRD) region, the annual average AOD was 1.48 and 1.29, and the AAOD was 0.14 and 0.13, respectively. The UV radiative forcing caused by aerosols dominated by black carbon (BC-dominated aerosols) on the surface was −3.19 and −2.98 W m<sup>−2</sup>, respectively, accounting for about 40% of the total aerosol radiative forcing, indicating that the reduction efficiency of BC-dominated aerosols on solar radiation was higher than that of other types of aerosols. The annual mean J[NO<sub>2</sub>] (J[O<sup>1</sup>D]) decreased by 14.90% (20.53%) and 13.71% (18.20%) due to the BC-dominated aerosols. The daily maximum photolysis rate usually occurred near noon due to the diurnal variation of solar zenith angle and, thus, the daily average photolysis rate decreased by 2–3% higher than that average during 10:00–14:00. |
| first_indexed | 2024-03-11T02:58:36Z |
| format | Article |
| id | doaj.art-7559579dffc249c9bb80e4bacb84a865 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-11T02:58:36Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-7559579dffc249c9bb80e4bacb84a8652023-11-18T08:28:35ZengMDPI AGRemote Sensing2072-42922023-05-011511277910.3390/rs15112779Absorbing Aerosol Optical Properties and Radiative Effects on Near-Surface Photochemistry in East AsiaHuimin Chen0Bingliang Zhuang1Jane Liu2Yinan Zhou3Yaxin Hu4Yang Chen5Yiman Gao6Wen Wei7Huijuan Lin8Shu Li9Tijian Wang10Min Xie11Mengmeng Li12Suzhou Meteorological Bureau, Suzhou 215100, ChinaSchool of Atmospheric Sciences, CMA-NJU Joint Laboratory for Climate Prediction Studies, Jiangsu Collaborative Innovation Center for Climate Change, Nanjing University, Nanjing 210023, ChinaDepartment of Geography and Planning, University of Toronto, Toronto, ON M5S 3G3, CanadaSchool of Atmospheric Sciences, CMA-NJU Joint Laboratory for Climate Prediction Studies, Jiangsu Collaborative Innovation Center for Climate Change, Nanjing University, Nanjing 210023, ChinaSchool of Atmospheric Sciences, CMA-NJU Joint Laboratory for Climate Prediction Studies, Jiangsu Collaborative Innovation Center for Climate Change, Nanjing University, Nanjing 210023, ChinaHuaneng Huaiyin Power Plant, Huai’an 223001, ChinaSchool of Atmospheric Sciences, CMA-NJU Joint Laboratory for Climate Prediction Studies, Jiangsu Collaborative Innovation Center for Climate Change, Nanjing University, Nanjing 210023, ChinaAnhui Meteorological Observatory, Hefei 230031, ChinaWater Resources & Hydropower Invest Design &Res, Lanzhou 730000, ChinaSchool of Atmospheric Sciences, CMA-NJU Joint Laboratory for Climate Prediction Studies, Jiangsu Collaborative Innovation Center for Climate Change, Nanjing University, Nanjing 210023, ChinaSchool of Atmospheric Sciences, CMA-NJU Joint Laboratory for Climate Prediction Studies, Jiangsu Collaborative Innovation Center for Climate Change, Nanjing University, Nanjing 210023, ChinaSchool of Atmospheric Sciences, CMA-NJU Joint Laboratory for Climate Prediction Studies, Jiangsu Collaborative Innovation Center for Climate Change, Nanjing University, Nanjing 210023, ChinaSchool of Atmospheric Sciences, CMA-NJU Joint Laboratory for Climate Prediction Studies, Jiangsu Collaborative Innovation Center for Climate Change, Nanjing University, Nanjing 210023, ChinaAbsorbing aerosols have significant influences on tropospheric photochemistry and regional climate change. Here, the direct radiative effects of absorbing aerosols at the major AERONET sites in East Asia and corresponding impacts on near-surface photochemical processes were quantified by employing a radiation transfer model. The average annual aerosol optical depth (AOD) of sites in China, Korea, and Japan was 1.15, 1.02 and 0.94, respectively, and the corresponding proportion of absorbing aerosol optical depth (AAOD) was 8.61%, 6.69%, and 6.49%, respectively. The influence of absorbing aerosol on ultraviolet (UV) radiation mainly focused on UV-A band (315–400 nm). Under the influence of such radiative effect, the annual mean near-surface J[NO<sub>2</sub>] (J[O<sup>1</sup>D]) of sites in China, Korea, and Japan decreased by 16.95% (22.42%), 9.61% (13.55%), and 9.63% (13.79%), respectively. In Beijing–Tianjin–Hebei (BTH) and Yangtze River Delta (YRD) region, the annual average AOD was 1.48 and 1.29, and the AAOD was 0.14 and 0.13, respectively. The UV radiative forcing caused by aerosols dominated by black carbon (BC-dominated aerosols) on the surface was −3.19 and −2.98 W m<sup>−2</sup>, respectively, accounting for about 40% of the total aerosol radiative forcing, indicating that the reduction efficiency of BC-dominated aerosols on solar radiation was higher than that of other types of aerosols. The annual mean J[NO<sub>2</sub>] (J[O<sup>1</sup>D]) decreased by 14.90% (20.53%) and 13.71% (18.20%) due to the BC-dominated aerosols. The daily maximum photolysis rate usually occurred near noon due to the diurnal variation of solar zenith angle and, thus, the daily average photolysis rate decreased by 2–3% higher than that average during 10:00–14:00.https://www.mdpi.com/2072-4292/15/11/2779aerosol optical propertiesradiative effectsphotochemistryAERONET |
| spellingShingle | Huimin Chen Bingliang Zhuang Jane Liu Yinan Zhou Yaxin Hu Yang Chen Yiman Gao Wen Wei Huijuan Lin Shu Li Tijian Wang Min Xie Mengmeng Li Absorbing Aerosol Optical Properties and Radiative Effects on Near-Surface Photochemistry in East Asia Remote Sensing aerosol optical properties radiative effects photochemistry AERONET |
| title | Absorbing Aerosol Optical Properties and Radiative Effects on Near-Surface Photochemistry in East Asia |
| title_full | Absorbing Aerosol Optical Properties and Radiative Effects on Near-Surface Photochemistry in East Asia |
| title_fullStr | Absorbing Aerosol Optical Properties and Radiative Effects on Near-Surface Photochemistry in East Asia |
| title_full_unstemmed | Absorbing Aerosol Optical Properties and Radiative Effects on Near-Surface Photochemistry in East Asia |
| title_short | Absorbing Aerosol Optical Properties and Radiative Effects on Near-Surface Photochemistry in East Asia |
| title_sort | absorbing aerosol optical properties and radiative effects on near surface photochemistry in east asia |
| topic | aerosol optical properties radiative effects photochemistry AERONET |
| url | https://www.mdpi.com/2072-4292/15/11/2779 |
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