Surface water and aerosol spatiotemporal dynamics and influence mechanisms over drylands
文献类型：期刊论文
| 作者 | Chen, Xiangyue3; Zuo, Hongchao3; Wang, Wenpeng3; Duan, Jikai3; Chang, Mingheng3; Wang, Jingzhe1,2 |
| 刊名 | GEOSCIENCE FRONTIERS
 |
| 出版日期 | 2023-03-01 |
| 卷号 | 14期号:2页码:16 |
| ISSN号 | 1674-9871 |
| 关键词 | Surface water Aerosols PLS-SEM Central Asia Aral Sea Ebinur Lake |
| DOI | 10.1016/j.gsf.2022.101524 |
| 通讯作者 | Zuo, Hongchao(zuohch@lzu.edu.cn) |
| 英文摘要 | Under the background of global warming and excessive human activities, much surface water in drylands is experiencing rapid degradation or shrinkage in recent years. The shrinkage of surface water, especially the degradation of lakes and their adjacent wetlands in drylands, may lead to the emergence of new salt dust storm hotspots, which causes greater danger. In this paper, based on high spatial resolution global surface water (GSW) and multiangle implementation of atmospheric correction (MAIAC) AOD data, we systematically analyze the dynamic characteristics of surface water and aerosols in typical drylands (Central Asia, CA) between 2000 and 2018. Simultaneously, combined with auxiliary environment vari-ables, we explore the driving mechanisms of surface water on the regional salt/sand aerosols on different spatial scales. The results show that the seasonal surface water features an increasing trend, especially a more dramatic increase after 2015, and the permanent surface water indicates an overall decrease, with nearly 54.367 % at risk of receding and drying up. In typical lakes (Aral Sea and Ebinur Lake), the inter-annual change feature of the surface water area (WA) is that a continuous decrease during the study per-iod occurs in Aral Sea area, yet a significant improvement has occurred in Ebinur Lake after 2015, and the degradation of Ebinur Lake takes place later and its recovery earlier than Aral Sea. The aerosol optical depth (AOD) in CA shows obvious seasonal variation, with the largest in spring (0.192 +/- 0173), next in summer (0.169 +/- 0.106), and the smallest in autumn (0.123 +/- 0.065). The interannual variation of AOD exhibits an increase from 2000 to 2018 in CA, with high AOD areas mainly concentrated in the Taklamakan Desert and some lake beds resulting from lake degradation, including Aral Sea and Ebinur Lake. The AOD holds a similar trend between Aral Sea and Ebinur Lake on an interannual scale. And the AOD over Ebinur Lake is lower than that over Aral Sea in magnitude and lags behind in reaching the peak compared with Aral Sea. The WA change can significantly affect aerosol variation directly or indirectly on the aerosol load or mode size, but there are obvious differences in the driving mechanisms, acting paths, and influence magnitude of WA on aerosols on different spatial scales. In addition, the increase of WA can significantly directly suppress the increase of Angstrom exponent (AE), and the effects of WA on AOD are realized majorly by an indirect approach. From the typical lake perspective, the effects of WA on aerosol in Aral Sea are achieved via an indirect path; and the decrease of WA can indirectly pro-mote the AOD rise, and directly stimulate the AE growth in Ebinur Lake.(c) 2022 China University of Geosciences (Beijing) and Peking University. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/). |
| WOS关键词 | CENTRAL-ASIA ; SATELLITE DATA ; EBINUR LAKE ; DATASET ; MODIS ; TRANSPORT ; XINJIANG |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0103] ; Basic Research Program of Shenzhen[20220811173316001] ; Guangdong Basic and Applied Basic Research Foundation[2020A1515111142] ; Key Laboratory of Spatial Data Mining & Information Sharing of Ministry of Education, Fuzhou University[2022LSDMIS05] ; State Key Laboratory of Resources and Environmental Information System |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | CHINA UNIV GEOSCIENCES, BEIJING |
| WOS记录号 | WOS:000911497500001 |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Basic Research Program of Shenzhen ; Guangdong Basic and Applied Basic Research Foundation ; Key Laboratory of Spatial Data Mining & Information Sharing of Ministry of Education, Fuzhou University ; State Key Laboratory of Resources and Environmental Information System |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/188999]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zuo, Hongchao |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 2.Sch Artificial Intelligence, Shenzhen Polytech, Shenzhen 518055, Peoples R China 3.Lanzhou Univ, Coll Atmospher Sci, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Xiangyue,Zuo, Hongchao,Wang, Wenpeng,et al. Surface water and aerosol spatiotemporal dynamics and influence mechanisms over drylands[J]. GEOSCIENCE FRONTIERS,2023,14(2):16. |
| APA | Chen, Xiangyue,Zuo, Hongchao,Wang, Wenpeng,Duan, Jikai,Chang, Mingheng,&Wang, Jingzhe.(2023).Surface water and aerosol spatiotemporal dynamics and influence mechanisms over drylands.GEOSCIENCE FRONTIERS,14(2),16. |
| MLA | Chen, Xiangyue,et al."Surface water and aerosol spatiotemporal dynamics and influence mechanisms over drylands".GEOSCIENCE FRONTIERS 14.2(2023):16. |
入库方式： OAI收割
来源：地理科学与资源研究所
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