The relationship between the Bay of Bengal summer monsoon retreat and early summer rainfall in East Asia
As the upstream region of the Asian summer monsoon, the Bay of Bengal summer monsoon (BOBSM) system has impacts on rainfall patterns in East Asia. In this study, we investigate the impact of the interannual variability of the BOBSM retreat on China precipitation in early summer (June) of the followi...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-03-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2024.1355536/full |
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| author | Qiuchi Li Qiuchi Li Lin Liu Lin Liu Lin Liu Yang Yang Yang Yang Guang Yang Guang Yang Yongliang Duan Yongliang Duan Ai Zeng Ai Zeng |
| author_facet | Qiuchi Li Qiuchi Li Lin Liu Lin Liu Lin Liu Yang Yang Yang Yang Guang Yang Guang Yang Yongliang Duan Yongliang Duan Ai Zeng Ai Zeng |
| author_sort | Qiuchi Li |
| collection | DOAJ |
| description | As the upstream region of the Asian summer monsoon, the Bay of Bengal summer monsoon (BOBSM) system has impacts on rainfall patterns in East Asia. In this study, we investigate the impact of the interannual variability of the BOBSM retreat on China precipitation in early summer (June) of the following year. When the BOBSM retreat occurs earlier in the previous year, we find enhanced rainfall in both the northeastern and eastern parts of China. Conversely, when the retreat of the BOBSM is delayed in the previous year, there is a tendency for decreased rainfall in most of northeastern and eastern China, while rainfall in the northern part of the Taiwan island region tends to increase. Statistical analysis demonstrates the co-variability between China’s June precipitation anomalies and preceding wind anomalies in the eastern Bay of Bengal. The results indicate a strong relationship between the preceding BOBSM retreat and China precipitation anomalies in the following June. Furthermore, the analysis suggests that the BOBSM retreat is more of an independent signal rather than modulated by an Indian Ocean Dipole event. |
| first_indexed | 2024-03-07T15:44:09Z |
| format | Article |
| id | doaj.art-028880aaf1e74d2386e13b5e50468c87 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-03-07T15:44:09Z |
| publishDate | 2024-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-028880aaf1e74d2386e13b5e50468c872024-03-05T05:01:14ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632024-03-011210.3389/feart.2024.13555361355536The relationship between the Bay of Bengal summer monsoon retreat and early summer rainfall in East AsiaQiuchi Li0Qiuchi Li1Lin Liu2Lin Liu3Lin Liu4Yang Yang5Yang Yang6Guang Yang7Guang Yang8Yongliang Duan9Yongliang Duan10Ai Zeng11Ai Zeng12First Institute of Oceanography, Ministry of Natural Resources and Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology, Qingdao, ChinaSouthern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, ChinaFirst Institute of Oceanography, Ministry of Natural Resources and Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology, Qingdao, ChinaSouthern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, ChinaKey Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao, ChinaFirst Institute of Oceanography, Ministry of Natural Resources and Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology, Qingdao, ChinaKey Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao, ChinaFirst Institute of Oceanography, Ministry of Natural Resources and Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology, Qingdao, ChinaKey Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao, ChinaFirst Institute of Oceanography, Ministry of Natural Resources and Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology, Qingdao, ChinaKey Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao, ChinaFirst Institute of Oceanography, Ministry of Natural Resources and Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology, Qingdao, ChinaQingdao Innovation and Development Base, Harbin Engineering University, Qingdao, ChinaAs the upstream region of the Asian summer monsoon, the Bay of Bengal summer monsoon (BOBSM) system has impacts on rainfall patterns in East Asia. In this study, we investigate the impact of the interannual variability of the BOBSM retreat on China precipitation in early summer (June) of the following year. When the BOBSM retreat occurs earlier in the previous year, we find enhanced rainfall in both the northeastern and eastern parts of China. Conversely, when the retreat of the BOBSM is delayed in the previous year, there is a tendency for decreased rainfall in most of northeastern and eastern China, while rainfall in the northern part of the Taiwan island region tends to increase. Statistical analysis demonstrates the co-variability between China’s June precipitation anomalies and preceding wind anomalies in the eastern Bay of Bengal. The results indicate a strong relationship between the preceding BOBSM retreat and China precipitation anomalies in the following June. Furthermore, the analysis suggests that the BOBSM retreat is more of an independent signal rather than modulated by an Indian Ocean Dipole event.https://www.frontiersin.org/articles/10.3389/feart.2024.1355536/fullBay of Bengal summer monsoonmonsoon retreatinterannual variabilityIndian Ocean Dipoleprecipitation |
| spellingShingle | Qiuchi Li Qiuchi Li Lin Liu Lin Liu Lin Liu Yang Yang Yang Yang Guang Yang Guang Yang Yongliang Duan Yongliang Duan Ai Zeng Ai Zeng The relationship between the Bay of Bengal summer monsoon retreat and early summer rainfall in East Asia Frontiers in Earth Science Bay of Bengal summer monsoon monsoon retreat interannual variability Indian Ocean Dipole precipitation |
| title | The relationship between the Bay of Bengal summer monsoon retreat and early summer rainfall in East Asia |
| title_full | The relationship between the Bay of Bengal summer monsoon retreat and early summer rainfall in East Asia |
| title_fullStr | The relationship between the Bay of Bengal summer monsoon retreat and early summer rainfall in East Asia |
| title_full_unstemmed | The relationship between the Bay of Bengal summer monsoon retreat and early summer rainfall in East Asia |
| title_short | The relationship between the Bay of Bengal summer monsoon retreat and early summer rainfall in East Asia |
| title_sort | relationship between the bay of bengal summer monsoon retreat and early summer rainfall in east asia |
| topic | Bay of Bengal summer monsoon monsoon retreat interannual variability Indian Ocean Dipole precipitation |
| url | https://www.frontiersin.org/articles/10.3389/feart.2024.1355536/full |
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