Tropospheric nitrogen dioxide levels vary diurnally in Asian cities
Abstract Satellite measurements of nitrogen dioxide have been used to infer nitrogen oxide emissions, a critical component in tropospheric chemistry and pollution. New observations from the Geostationary Environmental Monitoring Spectrometer offer a breakthrough by providing a daytime record of nitr...
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Nature Portfolio
2025-05-01
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| Series: | Communications Earth & Environment |
| Online Access: | https://doi.org/10.1038/s43247-025-02272-7 |
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| author | Junsung Park Hyunkee Hong Hanlim Lee Si-Wan Kim Jhoon Kim Michel Van Roozendael Caroline Fayt Myong-Hwan Ahn Daniel J. Jacob Seunghwan Seo Kyoung-Min Kim Daewon Kim Wonei Choi Won-Jin Lee Dong-Won Lee Thomas Wagner Andreas Richter Nickolay A. Krotkov Lok N. Lamsal Dai Ho Ko Seung Hoon Lee Jung-Hun Woo |
| author_facet | Junsung Park Hyunkee Hong Hanlim Lee Si-Wan Kim Jhoon Kim Michel Van Roozendael Caroline Fayt Myong-Hwan Ahn Daniel J. Jacob Seunghwan Seo Kyoung-Min Kim Daewon Kim Wonei Choi Won-Jin Lee Dong-Won Lee Thomas Wagner Andreas Richter Nickolay A. Krotkov Lok N. Lamsal Dai Ho Ko Seung Hoon Lee Jung-Hun Woo |
| author_sort | Junsung Park |
| collection | DOAJ |
| description | Abstract Satellite measurements of nitrogen dioxide have been used to infer nitrogen oxide emissions, a critical component in tropospheric chemistry and pollution. New observations from the Geostationary Environmental Monitoring Spectrometer offer a breakthrough by providing a daytime record of nitrogen dioxide over Asia. Here we present the summertime diurnal patterns of nitrogen dioxide at major cities, power plant regions, and the Strait of Malacca. The Geostationary Environmental Monitoring Spectrometer data across various regions show high nitrogen dioxide in the morning which decrease in the afternoon, with varying hourly peaks, troughs, and amplitudes reflecting diurnal characteristics of local emissions and chemistry. Nitrogen oxide emissions inferred from Geostationary Environmental Monitoring Spectrometer and the Weather Research and Forecasting model coupled with Chemistry also show distinct patterns among regions: early morning peaks occur over Hanoi, Guangzhou, and Bangkok; mid-to-late morning peaks appear over Seoul and Beijing; and late afternoon peaks are noted in the Yangtze River Delta region. Top-down emissions incorporating temporal changes in the Geostationary Environmental Monitoring Spectrometer nitrogen dioxide yield the most accurate nitrogen dioxide simulations. |
| format | Article |
| id | doaj-art-d2d4ab780cab40d3bcf205f2ccb044b2 |
| institution | OA Journals |
| issn | 2662-4435 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Earth & Environment |
| spelling | doaj-art-d2d4ab780cab40d3bcf205f2ccb044b22025-08-20T02:34:04ZengNature PortfolioCommunications Earth & Environment2662-44352025-05-016111210.1038/s43247-025-02272-7Tropospheric nitrogen dioxide levels vary diurnally in Asian citiesJunsung Park0Hyunkee Hong1Hanlim Lee2Si-Wan Kim3Jhoon Kim4Michel Van Roozendael5Caroline Fayt6Myong-Hwan Ahn7Daniel J. Jacob8Seunghwan Seo9Kyoung-Min Kim10Daewon Kim11Wonei Choi12Won-Jin Lee13Dong-Won Lee14Thomas Wagner15Andreas Richter16Nickolay A. Krotkov17Lok N. Lamsal18Dai Ho Ko19Seung Hoon Lee20Jung-Hun Woo21Division of Earth Environmental System Science, Major of Spatial Information Engineering, Pukyong National UniversityNational Institute of Environmental ResearchDivision of Earth Environmental System Science, Major of Spatial Information Engineering, Pukyong National UniversityDepartment of Atmospheric Sciences, Yonsei UniversityDepartment of Atmospheric Sciences, Yonsei UniversityBelgian Institute for Space Aeronomy (BIRA-IASB)Belgian Institute for Space Aeronomy (BIRA-IASB)Department of Climate and Energy Systems Engineering/Social Economy, Ewha Womans UniversityHarvard School of Engineering and Applied Science, Harvard UniversityDepartment of Atmospheric Sciences, Yonsei UniversityDepartment of Atmospheric Sciences, Yonsei UniversityDivision of Earth Environmental System Science, Major of Spatial Information Engineering, Pukyong National UniversityDivision of Earth Environmental System Science, Major of Spatial Information Engineering, Pukyong National UniversityNational Institute of Environmental ResearchNational Institute of Environmental ResearchMax-Planck Institute for Chemistry (MPI-C)Institute of Environmental Physics (IUP-UB), University of BremenAtmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight CenterAtmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight CenterKorea Aerospace Research InstituteKorea Aerospace Research InstituteDepartment of Environmental Planning & Advanced Program for Urban Environmental Studies, Seoul National UniversityAbstract Satellite measurements of nitrogen dioxide have been used to infer nitrogen oxide emissions, a critical component in tropospheric chemistry and pollution. New observations from the Geostationary Environmental Monitoring Spectrometer offer a breakthrough by providing a daytime record of nitrogen dioxide over Asia. Here we present the summertime diurnal patterns of nitrogen dioxide at major cities, power plant regions, and the Strait of Malacca. The Geostationary Environmental Monitoring Spectrometer data across various regions show high nitrogen dioxide in the morning which decrease in the afternoon, with varying hourly peaks, troughs, and amplitudes reflecting diurnal characteristics of local emissions and chemistry. Nitrogen oxide emissions inferred from Geostationary Environmental Monitoring Spectrometer and the Weather Research and Forecasting model coupled with Chemistry also show distinct patterns among regions: early morning peaks occur over Hanoi, Guangzhou, and Bangkok; mid-to-late morning peaks appear over Seoul and Beijing; and late afternoon peaks are noted in the Yangtze River Delta region. Top-down emissions incorporating temporal changes in the Geostationary Environmental Monitoring Spectrometer nitrogen dioxide yield the most accurate nitrogen dioxide simulations.https://doi.org/10.1038/s43247-025-02272-7 |
| spellingShingle | Junsung Park Hyunkee Hong Hanlim Lee Si-Wan Kim Jhoon Kim Michel Van Roozendael Caroline Fayt Myong-Hwan Ahn Daniel J. Jacob Seunghwan Seo Kyoung-Min Kim Daewon Kim Wonei Choi Won-Jin Lee Dong-Won Lee Thomas Wagner Andreas Richter Nickolay A. Krotkov Lok N. Lamsal Dai Ho Ko Seung Hoon Lee Jung-Hun Woo Tropospheric nitrogen dioxide levels vary diurnally in Asian cities Communications Earth & Environment |
| title | Tropospheric nitrogen dioxide levels vary diurnally in Asian cities |
| title_full | Tropospheric nitrogen dioxide levels vary diurnally in Asian cities |
| title_fullStr | Tropospheric nitrogen dioxide levels vary diurnally in Asian cities |
| title_full_unstemmed | Tropospheric nitrogen dioxide levels vary diurnally in Asian cities |
| title_short | Tropospheric nitrogen dioxide levels vary diurnally in Asian cities |
| title_sort | tropospheric nitrogen dioxide levels vary diurnally in asian cities |
| url | https://doi.org/10.1038/s43247-025-02272-7 |
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