Impacts of large-scale climatic circulation on floods through precipitation and temperature in the Lancang-Mekong River Basin
文献类型：期刊论文
| 作者 | Wang, Jie1; Yun, Xiaobo2; Chen, Aifang3,4; Gaffney, Paul P. J.5; Haile, Gebremedhin Gebremeskel6; Tang, Qiuhong5,7 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2024-01-15 |
| 卷号 | 908页码:13 |
| ISSN号 | 0048-9697 |
| 关键词 | Climatic circulation Precipitation Temperature Floods Lancang-Mekong River Basin |
| DOI | 10.1016/j.scitotenv.2023.168082 |
| 通讯作者 | Wang, Jie(jiewang@lzu.edu.cn) |
| 英文摘要 | The importance of large-scale climatic circulation impacts on precipitation and floods in the Lancang-Mekong River Basin (LMRB) has been widely acknowledged. However, the mechanisms related to the impacts of circulation on floods are not yet fully understood. To address this issue, circulations were characterized by using the climate indices, and floods were represented by the flood volume and simulated using an improved hydrologicalhydrodynamic model. The linear regression model was used to assess the impacts of circulation on precipitation and temperature, and also to quantify the impacts of precipitation, temperature, and circulation on floods. The results show that circulation affects precipitation with large spatial variability, while affects temperature with small spatial variability. On average, a unit change in different climate indices can cause a 2.5 %-6.1 % change in precipitation and a 0.3 %-1.2 % (0.09 degrees C-0.16 degrees C) change in temperature. Further, precipitation has a positive impact on floods, while temperature mainly has a negative impact. On average, a unit increase in precipitation , temperature can cause a 22.6 % increase and a 9.3 % decrease in floods, respectively. Consequently, cir-culation affects floods mainly through its impact on precipitation, while its impact on temperature also plays an important role. On average, a unit change in different climate indices can cause a 3.1 %-8.7 % change in floods. In addition, a multi-linear regression model was used to discuss the explained variance and relative contribution of climate. The results show that circulation can explain 12 %-23 % of the precipitation, temperature , flood variances, while temperature and precipitation can explain 69 % of the flood variance. Among all circulations, the monsoon systems, North Atlantic Oscillation, and El Nin similar to o-Southern Oscillation dominate precipitation, temperature, and floods in the LMRB with the largest contributions and the most affected regions. |
| WOS关键词 | VARIABILITY ; DATASET ; VEGETATION ; DRIVERS ; EROSION ; MONSOON ; RUNOFF ; ENSO |
| 资助项目 | Strategic Priority Research Program of Chinese Academy of Sciences[XDA20060402] ; ANSO Collaborative Research[ANSO-CR-KP-2021-09] ; Fundamental Research Funds for the Central Universities[lzujbky-2022-01] ; CAS Interdisciplinary Innovation Team[xbzg-zdsys-202104] ; National Natural Science Foundation of China[42101041] ; National Natural Science Foundation of China[42301013] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001111642500001 |
| 资助机构 | Strategic Priority Research Program of Chinese Academy of Sciences ; ANSO Collaborative Research ; Fundamental Research Funds for the Central Universities ; CAS Interdisciplinary Innovation Team ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/200262]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Jie |
| 作者单位 | 1.Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou, Peoples R China 2.China Meteorol Adm, Natl Meteorol Ctr, Beijing, Peoples R China 3.Dongguan Univ Technol, Sch Environm & Civil Engn, Dongguan, Peoples R China 4.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China 6.Wesleyan Univ, Dept Earth & Environm Sci, Middletown, CT USA 7.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jie,Yun, Xiaobo,Chen, Aifang,et al. Impacts of large-scale climatic circulation on floods through precipitation and temperature in the Lancang-Mekong River Basin[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,908:13. |
| APA | Wang, Jie,Yun, Xiaobo,Chen, Aifang,Gaffney, Paul P. J.,Haile, Gebremedhin Gebremeskel,&Tang, Qiuhong.(2024).Impacts of large-scale climatic circulation on floods through precipitation and temperature in the Lancang-Mekong River Basin.SCIENCE OF THE TOTAL ENVIRONMENT,908,13. |
| MLA | Wang, Jie,et al."Impacts of large-scale climatic circulation on floods through precipitation and temperature in the Lancang-Mekong River Basin".SCIENCE OF THE TOTAL ENVIRONMENT 908(2024):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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