The impact of tropical sea surface temperature on extreme precipitation in Pakistan during the summer of 2022
In August 2022, Pakistan experienced an unprecedented precipitation event that caused significant damage. Analysis of the observations reveals that this extreme rainfall is primarily driven by anomalous atmospheric zonal advection, resulting in an anomalous water vapor concentration in Pakistan. The...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2024-01-01
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| Series: | Environmental Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1748-9326/ad2f77 |
| _version_ | 1827320256448692224 |
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| author | Yulan Luo Lin Liu Yun Zhang Shahbaz Mehmood Yang Yang Guang Yang Yongliang Duan Qiuchi Li Ai Zeng Weidong Yu |
| author_facet | Yulan Luo Lin Liu Yun Zhang Shahbaz Mehmood Yang Yang Guang Yang Yongliang Duan Qiuchi Li Ai Zeng Weidong Yu |
| author_sort | Yulan Luo |
| collection | DOAJ |
| description | In August 2022, Pakistan experienced an unprecedented precipitation event that caused significant damage. Analysis of the observations reveals that this extreme rainfall is primarily driven by anomalous atmospheric zonal advection, resulting in an anomalous water vapor concentration in Pakistan. The climatological meridional advection also contributes to this flooding. Anomalous easterly winds and low-level vertical convection combine to be critical factors contributing to the moisture concentration over the country. Further investigation identifies the air-sea interaction over the tropical Indian Ocean and abnormal warming over the Arabian Sea are crucial factors influencing this extreme flooding event. The concurrent occurrence of a negative Indian Ocean Dipole event and the warming sea surface temperature anomalies in the northern Arabian Sea intensifies the easterly winds over Pakistan, helping to transfer the anomalous water vapor from the remote region into Pakistan, ultimately contributing to the extreme flooding in 2022. |
| first_indexed | 2024-04-25T00:42:41Z |
| format | Article |
| id | doaj.art-20e65093f1cd415f8d9bb7a4851932e9 |
| institution | Directory Open Access Journal |
| issn | 1748-9326 |
| language | English |
| last_indexed | 2024-04-25T00:42:41Z |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Letters |
| spelling | doaj.art-20e65093f1cd415f8d9bb7a4851932e92024-03-12T08:11:36ZengIOP PublishingEnvironmental Research Letters1748-93262024-01-0119404401210.1088/1748-9326/ad2f77The impact of tropical sea surface temperature on extreme precipitation in Pakistan during the summer of 2022Yulan Luo0Lin Liu1Yun Zhang2Shahbaz Mehmood3Yang Yang4Guang Yang5Yongliang Duan6Qiuchi Li7Ai Zeng8Weidong Yu9College of Meteorology and Oceanography, National University of Defense Technology , Changsha, People’s Republic of China; First Institute of Oceanography, Ministry of Natural Resources and Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology , Qingdao, People’s Republic of China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) , Zhuhai, People’s Republic of China; Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources , Qingdao, People’s Republic of 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, People’s Republic of China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) , Zhuhai, People’s Republic of China; Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources , Qingdao, People’s Republic of ChinaCollege of Meteorology and Oceanography, National University of Defense Technology , Changsha, People’s Republic of ChinaGlobal Climate-Change Impact Studies Centre (GCISC), Ministry of Climate Change & Environmental Coordination (MoCC&EC) , Islamabad, PakistanFirst Institute of Oceanography, Ministry of Natural Resources and Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology , Qingdao, People’s Republic of China; Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources , Qingdao, People’s Republic of 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, People’s Republic of China; Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources , Qingdao, People’s Republic of 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, People’s Republic of China; Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources , Qingdao, People’s Republic of 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, People’s Republic of 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, People’s Republic of China; Harbin Engineering University , Qingdao, People’s Republic of ChinaSouthern Marine Science and Engineering Guangdong Laboratory (Zhuhai) , Zhuhai, People’s Republic of China; Sun Yat-Sen University , Zhuhai, People’s Republic of ChinaIn August 2022, Pakistan experienced an unprecedented precipitation event that caused significant damage. Analysis of the observations reveals that this extreme rainfall is primarily driven by anomalous atmospheric zonal advection, resulting in an anomalous water vapor concentration in Pakistan. The climatological meridional advection also contributes to this flooding. Anomalous easterly winds and low-level vertical convection combine to be critical factors contributing to the moisture concentration over the country. Further investigation identifies the air-sea interaction over the tropical Indian Ocean and abnormal warming over the Arabian Sea are crucial factors influencing this extreme flooding event. The concurrent occurrence of a negative Indian Ocean Dipole event and the warming sea surface temperature anomalies in the northern Arabian Sea intensifies the easterly winds over Pakistan, helping to transfer the anomalous water vapor from the remote region into Pakistan, ultimately contributing to the extreme flooding in 2022.https://doi.org/10.1088/1748-9326/ad2f77extreme floodingIndian ocean dipoleSSTAPakistan rainfall |
| spellingShingle | Yulan Luo Lin Liu Yun Zhang Shahbaz Mehmood Yang Yang Guang Yang Yongliang Duan Qiuchi Li Ai Zeng Weidong Yu The impact of tropical sea surface temperature on extreme precipitation in Pakistan during the summer of 2022 Environmental Research Letters extreme flooding Indian ocean dipole SSTA Pakistan rainfall |
| title | The impact of tropical sea surface temperature on extreme precipitation in Pakistan during the summer of 2022 |
| title_full | The impact of tropical sea surface temperature on extreme precipitation in Pakistan during the summer of 2022 |
| title_fullStr | The impact of tropical sea surface temperature on extreme precipitation in Pakistan during the summer of 2022 |
| title_full_unstemmed | The impact of tropical sea surface temperature on extreme precipitation in Pakistan during the summer of 2022 |
| title_short | The impact of tropical sea surface temperature on extreme precipitation in Pakistan during the summer of 2022 |
| title_sort | impact of tropical sea surface temperature on extreme precipitation in pakistan during the summer of 2022 |
| topic | extreme flooding Indian ocean dipole SSTA Pakistan rainfall |
| url | https://doi.org/10.1088/1748-9326/ad2f77 |
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