Current Challenges in Visibility Improvement in Sichuan Basin
Abstract The visibility in the Sichuan Basin (SB) was worse than that in the North China Plain (NCP) for the same level of PM2.5. One well‐known reason is that the aerosol extinction enhancement due to hygroscopic growth in the SB was stronger than that in the NCP because the relative humidity (RH)...
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| Format: | Article |
| Language: | English |
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Wiley
2022-06-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2022GL098836 |
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| _version_ | 1832591268698390528 |
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| author | Gang Zhao Min Hu Zirui Zhang Lizi Tang Dongjie Shang Jie Ren Xiangxinyue Meng Yuan Zhang Miao Feng Yina Luo Shishi Yang Qinwen Tan Danlin Song Song Guo Zhijun Wu Limin Zeng Yuanhang Zhang Shaodong Xie |
| author_facet | Gang Zhao Min Hu Zirui Zhang Lizi Tang Dongjie Shang Jie Ren Xiangxinyue Meng Yuan Zhang Miao Feng Yina Luo Shishi Yang Qinwen Tan Danlin Song Song Guo Zhijun Wu Limin Zeng Yuanhang Zhang Shaodong Xie |
| author_sort | Gang Zhao |
| collection | DOAJ |
| description | Abstract The visibility in the Sichuan Basin (SB) was worse than that in the North China Plain (NCP) for the same level of PM2.5. One well‐known reason is that the aerosol extinction enhancement due to hygroscopic growth in the SB was stronger than that in the NCP because the relative humidity (RH) in the SB was higher than that in the NCP. However, the visibility was worse in the SB under the same PM2.5 and RH levels. The volume extinction efficiency (VEE) is kept between 7 and 8 for different PM2.5 in the SB, while the VEE increased from 4.6 to 7.2 when the PM2.5 level increased from 20 to 180 μg/m3 in the NCP. The difference in VEE resulted from the different particle number size distributions. Our research demonstrates that the VEE is an important factor that influences visibility and provides new insight into visibility impairment for the SB. |
| format | Article |
| id | doaj-art-ddabf2a5a79e4d06a26c6947134e21aa |
| institution | Kabale University |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2022-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-ddabf2a5a79e4d06a26c6947134e21aa2025-01-22T14:38:16ZengWileyGeophysical Research Letters0094-82761944-80072022-06-014912n/an/a10.1029/2022GL098836Current Challenges in Visibility Improvement in Sichuan BasinGang Zhao0Min Hu1Zirui Zhang2Lizi Tang3Dongjie Shang4Jie Ren5Xiangxinyue Meng6Yuan Zhang7Miao Feng8Yina Luo9Shishi Yang10Qinwen Tan11Danlin Song12Song Guo13Zhijun Wu14Limin Zeng15Yuanhang Zhang16Shaodong Xie17State Key Joint Laboratory of Environmental Simulation and Pollution Control International Joint Laboratory for Regional Pollution Control Ministry of Education College of Environmental Sciences and Engineering Peking University Beijing ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control International Joint Laboratory for Regional Pollution Control Ministry of Education College of Environmental Sciences and Engineering Peking University Beijing ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control International Joint Laboratory for Regional Pollution Control Ministry of Education College of Environmental Sciences and Engineering Peking University Beijing ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control International Joint Laboratory for Regional Pollution Control Ministry of Education College of Environmental Sciences and Engineering Peking University Beijing ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control International Joint Laboratory for Regional Pollution Control Ministry of Education College of Environmental Sciences and Engineering Peking University Beijing ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control International Joint Laboratory for Regional Pollution Control Ministry of Education College of Environmental Sciences and Engineering Peking University Beijing ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control International Joint Laboratory for Regional Pollution Control Ministry of Education College of Environmental Sciences and Engineering Peking University Beijing ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control International Joint Laboratory for Regional Pollution Control Ministry of Education College of Environmental Sciences and Engineering Peking University Beijing ChinaOffice of Atmospheric Environment Chengdu Academy of Environmental Sciences Chengdu ChinaOffice of Atmospheric Environment Chengdu Academy of Environmental Sciences Chengdu ChinaOffice of Atmospheric Environment Chengdu Academy of Environmental Sciences Chengdu ChinaOffice of Atmospheric Environment Chengdu Academy of Environmental Sciences Chengdu ChinaOffice of Atmospheric Environment Chengdu Academy of Environmental Sciences Chengdu ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control International Joint Laboratory for Regional Pollution Control Ministry of Education College of Environmental Sciences and Engineering Peking University Beijing ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control International Joint Laboratory for Regional Pollution Control Ministry of Education College of Environmental Sciences and Engineering Peking University Beijing ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control International Joint Laboratory for Regional Pollution Control Ministry of Education College of Environmental Sciences and Engineering Peking University Beijing ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control International Joint Laboratory for Regional Pollution Control Ministry of Education College of Environmental Sciences and Engineering Peking University Beijing ChinaState Key Joint Laboratory of Environmental Simulation and Pollution Control International Joint Laboratory for Regional Pollution Control Ministry of Education College of Environmental Sciences and Engineering Peking University Beijing ChinaAbstract The visibility in the Sichuan Basin (SB) was worse than that in the North China Plain (NCP) for the same level of PM2.5. One well‐known reason is that the aerosol extinction enhancement due to hygroscopic growth in the SB was stronger than that in the NCP because the relative humidity (RH) in the SB was higher than that in the NCP. However, the visibility was worse in the SB under the same PM2.5 and RH levels. The volume extinction efficiency (VEE) is kept between 7 and 8 for different PM2.5 in the SB, while the VEE increased from 4.6 to 7.2 when the PM2.5 level increased from 20 to 180 μg/m3 in the NCP. The difference in VEE resulted from the different particle number size distributions. Our research demonstrates that the VEE is an important factor that influences visibility and provides new insight into visibility impairment for the SB.https://doi.org/10.1029/2022GL098836visibilityvolume extinction efficiencyparticle number size distribution |
| spellingShingle | Gang Zhao Min Hu Zirui Zhang Lizi Tang Dongjie Shang Jie Ren Xiangxinyue Meng Yuan Zhang Miao Feng Yina Luo Shishi Yang Qinwen Tan Danlin Song Song Guo Zhijun Wu Limin Zeng Yuanhang Zhang Shaodong Xie Current Challenges in Visibility Improvement in Sichuan Basin Geophysical Research Letters visibility volume extinction efficiency particle number size distribution |
| title | Current Challenges in Visibility Improvement in Sichuan Basin |
| title_full | Current Challenges in Visibility Improvement in Sichuan Basin |
| title_fullStr | Current Challenges in Visibility Improvement in Sichuan Basin |
| title_full_unstemmed | Current Challenges in Visibility Improvement in Sichuan Basin |
| title_short | Current Challenges in Visibility Improvement in Sichuan Basin |
| title_sort | current challenges in visibility improvement in sichuan basin |
| topic | visibility volume extinction efficiency particle number size distribution |
| url | https://doi.org/10.1029/2022GL098836 |
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