Contribution of Mesoscale Convective Systems to Floods in the East Asian Summer Monsoon Region
Abstract The quantitative relationship between Mesoscale Convective Systems (MCSs) and floods over East Asia has not been established. In this study, MCSs are clustered into four types with Self‐Organizing Map approach. Floods in June‐August of 2000–2021 are linked with different types of MCS by aut...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-07-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2023GL108125 |
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| author | Tian Ding Tianjun Zhou Zhun Guo Yuan Yang Liwei Zou Xiaolong Chen |
| author_facet | Tian Ding Tianjun Zhou Zhun Guo Yuan Yang Liwei Zou Xiaolong Chen |
| author_sort | Tian Ding |
| collection | DOAJ |
| description | Abstract The quantitative relationship between Mesoscale Convective Systems (MCSs) and floods over East Asia has not been established. In this study, MCSs are clustered into four types with Self‐Organizing Map approach. Floods in June‐August of 2000–2021 are linked with different types of MCS by automated algorithms we constructed. We find that among the major floods (potential flood peak periods), 91% (87%) are related to MCS, 65% (78%) are dominated by MCS, and 38% (20%) are dominated by multi‐types of MCS. Types 1 and 2 MCS have higher flood‐inducing efficiencies than common MCS (Type‐4). Type‐1 MCS, characterized by the least number (2% of the total number), the largest precipitation volume, longest lifetime, slowest moving, strongest precipitation, can most efficiently produce floods. Type‐2 MCS, characterized by the second largest precipitation volume, more numerous than Type‐1 particularly over land, can induce floods not only relatively efficiently but also more frequently than Type‐1. |
| format | Article |
| id | doaj-art-74c649664e424a609942b4bb3a13b651 |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2024-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-74c649664e424a609942b4bb3a13b6512025-08-20T02:04:21ZengWileyGeophysical Research Letters0094-82761944-80072024-07-015113n/an/a10.1029/2023GL108125Contribution of Mesoscale Convective Systems to Floods in the East Asian Summer Monsoon RegionTian Ding0Tianjun Zhou1Zhun Guo2Yuan Yang3Liwei Zou4Xiaolong Chen5LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences Beijing ChinaLASG, Institute of Atmospheric Physics, Chinese Academy of Sciences Beijing ChinaLASG, Institute of Atmospheric Physics, Chinese Academy of Sciences Beijing ChinaCenter for Western Weather and Water Extremes Scripps Institution of Oceanography, University of California San Diego San Diego CA USALASG, Institute of Atmospheric Physics, Chinese Academy of Sciences Beijing ChinaLASG, Institute of Atmospheric Physics, Chinese Academy of Sciences Beijing ChinaAbstract The quantitative relationship between Mesoscale Convective Systems (MCSs) and floods over East Asia has not been established. In this study, MCSs are clustered into four types with Self‐Organizing Map approach. Floods in June‐August of 2000–2021 are linked with different types of MCS by automated algorithms we constructed. We find that among the major floods (potential flood peak periods), 91% (87%) are related to MCS, 65% (78%) are dominated by MCS, and 38% (20%) are dominated by multi‐types of MCS. Types 1 and 2 MCS have higher flood‐inducing efficiencies than common MCS (Type‐4). Type‐1 MCS, characterized by the least number (2% of the total number), the largest precipitation volume, longest lifetime, slowest moving, strongest precipitation, can most efficiently produce floods. Type‐2 MCS, characterized by the second largest precipitation volume, more numerous than Type‐1 particularly over land, can induce floods not only relatively efficiently but also more frequently than Type‐1.https://doi.org/10.1029/2023GL108125mesoscale convective systemsfloodspotential flood peak periods |
| spellingShingle | Tian Ding Tianjun Zhou Zhun Guo Yuan Yang Liwei Zou Xiaolong Chen Contribution of Mesoscale Convective Systems to Floods in the East Asian Summer Monsoon Region Geophysical Research Letters mesoscale convective systems floods potential flood peak periods |
| title | Contribution of Mesoscale Convective Systems to Floods in the East Asian Summer Monsoon Region |
| title_full | Contribution of Mesoscale Convective Systems to Floods in the East Asian Summer Monsoon Region |
| title_fullStr | Contribution of Mesoscale Convective Systems to Floods in the East Asian Summer Monsoon Region |
| title_full_unstemmed | Contribution of Mesoscale Convective Systems to Floods in the East Asian Summer Monsoon Region |
| title_short | Contribution of Mesoscale Convective Systems to Floods in the East Asian Summer Monsoon Region |
| title_sort | contribution of mesoscale convective systems to floods in the east asian summer monsoon region |
| topic | mesoscale convective systems floods potential flood peak periods |
| url | https://doi.org/10.1029/2023GL108125 |
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