Concurrent hot extremes and high ultraviolet radiation in summer over the Yangtze Plain and their possible impact on surface ozone
Hot extremes, ultraviolet (UV) radiation, and surface ozone all have prominent effects on human health and ecosystems. Here we show evidence that both hot extremes and high surface UV radiation at noon time occur concurrently in summer over the Yangtze Plain. Composite analysis suggests that hot ext...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2022-01-01
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| Series: | Environmental Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1748-9326/ac6c3c |
| _version_ | 1797746952146780160 |
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| author | Yan Xia Yongyun Hu Yi Huang Jianchun Bian Chuanfeng Zhao Jing Wei Yingying Yan Fei Xie Jintai Lin |
| author_facet | Yan Xia Yongyun Hu Yi Huang Jianchun Bian Chuanfeng Zhao Jing Wei Yingying Yan Fei Xie Jintai Lin |
| author_sort | Yan Xia |
| collection | DOAJ |
| description | Hot extremes, ultraviolet (UV) radiation, and surface ozone all have prominent effects on human health and ecosystems. Here we show evidence that both hot extremes and high surface UV radiation at noon time occur concurrently in summer over the Yangtze Plain. Composite analysis suggests that hot extremes in summer are primarily caused by the westward extension of the Western Pacific Subtropical High, which leads to less clouds and consequently more downward solar radiation on the surface over the Yangtze Plain. It is found that surface UV radiation may be dominated by cloud variations, instead of stratospheric ozone during the hot extremes. Further analysis indicates that the hot extremes and high UV radiation, which play important roles in photochemistry in the troposphere, may result in more surface ozone. The concurrent hot extremes, strong UV radiation, and severe ozone pollutions over the Yangtze Plain in summer are likely to have dramatical influences on human health, which should be paid more attention. |
| first_indexed | 2024-03-12T15:45:12Z |
| format | Article |
| id | doaj.art-8cd9648032d046c19dbb2834bda84156 |
| institution | Directory Open Access Journal |
| issn | 1748-9326 |
| language | English |
| last_indexed | 2024-03-12T15:45:12Z |
| publishDate | 2022-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Letters |
| spelling | doaj.art-8cd9648032d046c19dbb2834bda841562023-08-09T15:31:22ZengIOP PublishingEnvironmental Research Letters1748-93262022-01-0117606400110.1088/1748-9326/ac6c3cConcurrent hot extremes and high ultraviolet radiation in summer over the Yangtze Plain and their possible impact on surface ozoneYan Xia0https://orcid.org/0000-0001-8664-5325Yongyun Hu1Yi Huang2Jianchun Bian3Chuanfeng Zhao4https://orcid.org/0000-0002-5196-3996Jing Wei5https://orcid.org/0000-0002-8803-7056Yingying Yan6Fei Xie7https://orcid.org/0000-0003-2891-3883Jintai Lin8College of Global Change and Earth System Science, Beijing Normal University , Beijing 100875, People’s Republic of China; Key Laboratory of Middle Atmosphere and Global Environment Observation, Institute of Atmospheric Physics, Chinese Academy of Sciences , Beijing 100029, People’s Republic of ChinaLaboratory for Climate and Ocean-Atmosphere Studies, Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University , Beijing 100871, People’s Republic of ChinaDepartment of Atmospheric and Oceanic Sciences, McGill University , Montreal, Quebec H3A 0B9, CanadaKey Laboratory of Middle Atmosphere and Global Environment Observation, Institute of Atmospheric Physics, Chinese Academy of Sciences , Beijing 100029, People’s Republic of China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences , Beijing 100049, People’s Republic of China; College of Atmospheric Sciences, Lanzhou University , Lanzhou 730000, People’s Republic of ChinaCollege of Global Change and Earth System Science, Beijing Normal University , Beijing 100875, People’s Republic of China; Laboratory for Climate and Ocean-Atmosphere Studies, Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University , Beijing 100871, People’s Republic of ChinaDepartment of Atmospheric and Oceanic Science, Earth System Science Interdisciplinary Center, University of Maryland , College Park, MD 20740, United States of AmericaDepartment of Atmospheric Science, School of Environmental Sciences, China University of Geosciences , Wuhan 430074, People’s Republic of ChinaCollege of Global Change and Earth System Science, Beijing Normal University , Beijing 100875, People’s Republic of ChinaLaboratory for Climate and Ocean-Atmosphere Studies, Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University , Beijing 100871, People’s Republic of ChinaHot extremes, ultraviolet (UV) radiation, and surface ozone all have prominent effects on human health and ecosystems. Here we show evidence that both hot extremes and high surface UV radiation at noon time occur concurrently in summer over the Yangtze Plain. Composite analysis suggests that hot extremes in summer are primarily caused by the westward extension of the Western Pacific Subtropical High, which leads to less clouds and consequently more downward solar radiation on the surface over the Yangtze Plain. It is found that surface UV radiation may be dominated by cloud variations, instead of stratospheric ozone during the hot extremes. Further analysis indicates that the hot extremes and high UV radiation, which play important roles in photochemistry in the troposphere, may result in more surface ozone. The concurrent hot extremes, strong UV radiation, and severe ozone pollutions over the Yangtze Plain in summer are likely to have dramatical influences on human health, which should be paid more attention.https://doi.org/10.1088/1748-9326/ac6c3chot extremesultraviolet radiationcloudsthe Western Pacific Subtropical Highsurface ozoneERA5 reanalysis |
| spellingShingle | Yan Xia Yongyun Hu Yi Huang Jianchun Bian Chuanfeng Zhao Jing Wei Yingying Yan Fei Xie Jintai Lin Concurrent hot extremes and high ultraviolet radiation in summer over the Yangtze Plain and their possible impact on surface ozone Environmental Research Letters hot extremes ultraviolet radiation clouds the Western Pacific Subtropical High surface ozone ERA5 reanalysis |
| title | Concurrent hot extremes and high ultraviolet radiation in summer over the Yangtze Plain and their possible impact on surface ozone |
| title_full | Concurrent hot extremes and high ultraviolet radiation in summer over the Yangtze Plain and their possible impact on surface ozone |
| title_fullStr | Concurrent hot extremes and high ultraviolet radiation in summer over the Yangtze Plain and their possible impact on surface ozone |
| title_full_unstemmed | Concurrent hot extremes and high ultraviolet radiation in summer over the Yangtze Plain and their possible impact on surface ozone |
| title_short | Concurrent hot extremes and high ultraviolet radiation in summer over the Yangtze Plain and their possible impact on surface ozone |
| title_sort | concurrent hot extremes and high ultraviolet radiation in summer over the yangtze plain and their possible impact on surface ozone |
| topic | hot extremes ultraviolet radiation clouds the Western Pacific Subtropical High surface ozone ERA5 reanalysis |
| url | https://doi.org/10.1088/1748-9326/ac6c3c |
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