Moisture source differences between the 2020 and 1998 super Meiyu-flood events in the Yangtze River Valley
文献类型：期刊论文
| 作者 | Zhang, Chi; Tang, Qiuhong3,6; Zhao, Yang5; Chen, Deliang4; Huang, Jinchuan2,7; Liu, Yubo3,6; Zhang, Xu3 |
| 刊名 | WEATHER AND CLIMATE EXTREMES
 |
| 出版日期 | 2024-03-01 |
| 卷号 | 43页码:100644 |
| 关键词 | Meiyu Precipitation Moisture source The Yangtze River valley WAM2Layers |
| DOI | 10.1016/j.wace.2024.100644 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Two historic Meiyu events in 1998 and 2020 hit the Yangtze River Valley (YRV), causing catastrophic damage to the socio-economy. By tracking moisture supplies to the extreme precipitation events using Water Accounting Model-2Layers and ERA5 reanalysis, the moisture origins and their differences in feeding the YRV precipitation were revealed. Climatologically, the southwest monsoon channel is the most important moisture channel with the Indian Ocean contributing -45% and the Indo-China Peninsula contributing -16% of the YRV precipitation. During the two super Meiyu events, the Indian Ocean and the Indo-China Peninsula dominated the excessive moisture supply, which together contributed more than 65% of the extra precipitation. Moisture supply anomalies in 1998 and 2020 showed a robust spatial pattern of west increase-east decrease. When the YRV precipitation is higher than the normal, moisture mainly comes from the southwest sources, and moisture contribution from the northwestern Pacific is relatively small. We also found that the intensity of the western Pacific subtropical high is a major influencing factor that explained -47% of the YRV precipitation variation during 1991-2020. When it intensifies, an anomalous anticyclone is formed in the mid-lower troposphere around the tropical Northwest Pacific. In its northwestern flank, a strong southwesterly in the upwind of the YRV helps bring in more moisture through the southwest monsoon. In the downwind, it inhibits moisture supply from the northwestern Pacific Ocean. Compared with 2020, a drier condition over Indo-China Peninsula and YRV in 1998 led to a substantially less (-29%) moisture supply to the YRV precipitation, resulting in a less strong Meiyu event in 1998. |
| WOS关键词 | SUMMER PRECIPITATION ; RAINFALL EVENTS ; EL NIO ; CLIMATE ; CYCLE ; MODEL |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001179845600001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/203348]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Reg Sustainable Dev Modeling, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Univ Gothenburg, Dept Earth Sci, Gothenburg, Sweden 4.Ocean Univ China, Acad Future Ocean, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Coll Ocean & Atmospher Sci,Key Lab Phys Oceanog, Qingdao, Peoples R China 5.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 6.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 7.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Chi,Tang, Qiuhong,Zhao, Yang,et al. Moisture source differences between the 2020 and 1998 super Meiyu-flood events in the Yangtze River Valley[J]. WEATHER AND CLIMATE EXTREMES,2024,43:100644. |
| APA | Zhang, Chi.,Tang, Qiuhong.,Zhao, Yang.,Chen, Deliang.,Huang, Jinchuan.,...&Zhang, Xu.(2024).Moisture source differences between the 2020 and 1998 super Meiyu-flood events in the Yangtze River Valley.WEATHER AND CLIMATE EXTREMES,43,100644. |
| MLA | Zhang, Chi,et al."Moisture source differences between the 2020 and 1998 super Meiyu-flood events in the Yangtze River Valley".WEATHER AND CLIMATE EXTREMES 43(2024):100644. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。