Aerosol as a potential factor to control the increasing torrential rain events in urban areas over the last decades
<p>This study examines the role played by aerosol in torrential rain that occurred in the Seoul area, which is a conurbation area where urbanization has been rapid in the last few decades, using cloud-system-resolving model (CSRM) simulations. The model results show that the spatial variabi...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2018-08-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | https://www.atmos-chem-phys.net/18/12531/2018/acp-18-12531-2018.pdf |
| _version_ | 1831671756892405760 |
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| author | S. S. Lee B.-G. Kim Z. Li Y.-S. Choi C.-H. Jung J. Um J. Mok K.-H. Seo |
| author_facet | S. S. Lee B.-G. Kim Z. Li Y.-S. Choi C.-H. Jung J. Um J. Mok K.-H. Seo |
| author_sort | S. S. Lee |
| collection | DOAJ |
| description | <p>This study examines the role played by aerosol in torrential rain that
occurred in the Seoul area, which is a conurbation area where urbanization
has been rapid in the last few decades, using cloud-system-resolving model
(CSRM) simulations. The model results show that the spatial variability in
aerosol concentrations causes the inhomogeneity of the spatial distribution
of evaporative cooling and the intensity of associated outflow around the
surface. This inhomogeneity generates a strong convergence field in which
torrential rain forms. With the increases in the variability in aerosol
concentrations, the occurrence of torrential rain increases. This study finds
that the effects of the increases in the variability play a much more
important role in the increases in torrential rain than the much-studied
effects of the increases in aerosol loading. Results in this study
demonstrate that for a better understanding of extreme weather events such as
torrential rain in urban areas, not only changing aerosol loading but also
changing aerosol spatial distribution since industrialization should be
considered in aerosol–precipitation interactions.</p> |
| first_indexed | 2024-12-19T23:41:16Z |
| format | Article |
| id | doaj.art-748fa97469a54f0aaa3a65c2d38c87c4 |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-12-19T23:41:16Z |
| publishDate | 2018-08-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-748fa97469a54f0aaa3a65c2d38c87c42022-12-21T20:01:26ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242018-08-0118125311255010.5194/acp-18-12531-2018Aerosol as a potential factor to control the increasing torrential rain events in urban areas over the last decadesS. S. Lee0B.-G. Kim1Z. Li2Y.-S. Choi3C.-H. Jung4J. Um5J. Mok6K.-H. Seo7Earth System Science Interdisciplinary Center, University of Maryland, MarylandDepartment of Atmospheric Environmental Sciences, Gangneung–Wonju National University, Gangneung, Gang-Won do, South KoreaEarth System Science Interdisciplinary Center, University of Maryland, MarylandDepartment of Environmental Science and Engineering, Ewha Womans University, Seoul, South KoreaDepartment of Health Management, Kyungin Women's University, Incheon, South KoreaDepartment of Atmospheric Sciences, Division of Earth Environmental System, Pusan National University, Busan, South KoreaEarth System Science Interdisciplinary Center, University of Maryland, MarylandDepartment of Atmospheric Sciences, Division of Earth Environmental System, Pusan National University, Busan, South Korea<p>This study examines the role played by aerosol in torrential rain that occurred in the Seoul area, which is a conurbation area where urbanization has been rapid in the last few decades, using cloud-system-resolving model (CSRM) simulations. The model results show that the spatial variability in aerosol concentrations causes the inhomogeneity of the spatial distribution of evaporative cooling and the intensity of associated outflow around the surface. This inhomogeneity generates a strong convergence field in which torrential rain forms. With the increases in the variability in aerosol concentrations, the occurrence of torrential rain increases. This study finds that the effects of the increases in the variability play a much more important role in the increases in torrential rain than the much-studied effects of the increases in aerosol loading. Results in this study demonstrate that for a better understanding of extreme weather events such as torrential rain in urban areas, not only changing aerosol loading but also changing aerosol spatial distribution since industrialization should be considered in aerosol–precipitation interactions.</p>https://www.atmos-chem-phys.net/18/12531/2018/acp-18-12531-2018.pdf |
| spellingShingle | S. S. Lee B.-G. Kim Z. Li Y.-S. Choi C.-H. Jung J. Um J. Mok K.-H. Seo Aerosol as a potential factor to control the increasing torrential rain events in urban areas over the last decades Atmospheric Chemistry and Physics |
| title | Aerosol as a potential factor to control the increasing torrential rain events in urban areas over the last decades |
| title_full | Aerosol as a potential factor to control the increasing torrential rain events in urban areas over the last decades |
| title_fullStr | Aerosol as a potential factor to control the increasing torrential rain events in urban areas over the last decades |
| title_full_unstemmed | Aerosol as a potential factor to control the increasing torrential rain events in urban areas over the last decades |
| title_short | Aerosol as a potential factor to control the increasing torrential rain events in urban areas over the last decades |
| title_sort | aerosol as a potential factor to control the increasing torrential rain events in urban areas over the last decades |
| url | https://www.atmos-chem-phys.net/18/12531/2018/acp-18-12531-2018.pdf |
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