Long-term morphodynamic evolution in the Modaomen Estuary of the Pearl River Delta, South China
文献类型：期刊论文
| 作者 | He, Yong1,3,4; Liu, Xiaojian1,3; Duan, Zihao2; Liu, Cheng1,3; Hou, Peng1,3; Lu, Chen1,3; Wu, Yao1,3 |
| 刊名 | GEOMORPHOLOGY
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 398页码:15 |
| 关键词 | Morphological migration Multiple driving forces Life-cycle behavior Modaomen estuary |
| ISSN号 | 0169-555X |
| DOI | 10.1016/j.geomorph.2021.108057 |
| 通讯作者 | Liu, Xiaojian(lxiaojian2010@gmail.com) ; Duan, Zihao(duanzh.18b@igsnrr.ac.cn) |
| 英文摘要 | Anthropogenic activities and natural disturbances will cause large-scale changes in the morphology of estuarine systems. Studies of estuarine morphology tended to focus on a single driving factor, however, the intertwined ef-fects (e.g., land reclamation, sand excavation, tides, waves, runoff) are rarely mentioned in the literature. This work characterizes and conceptualizes the morphodynamics of the Modaomen Estuary (ME), the largest estuary in the Pearl River Delta (PRD), China, based on Landsat satellite imagery, high-resolution bathymetry survey data, and in situ hydrographic measurements. The morphodynamic evolution of the ME since the 1970s-2010s is analyzed with respect to planform configuration and bathymetry. Quantification of estuarine hydrodynamic and sediment parameters for the most recent years indicates that the ME has transformed from a traditional fluvial-and tide-dominated estuary into a fluvial-and wave-dominated estuary. Ocean currents intrude along the eastern channel and draw down along the western channel, in which estuarine flow deflection is induced by the combined effect of upstream runoff, coastal waves, and littoral currents. Furthermore, a life-cycle model of the morphological migration of the ME is presented by synthesizing hydrodynamics and sediment dynamics. This conceptual model of three geomorphological states clearly shows that the main channel experiences a life cycle covering several decades, from the origin of the main channel to its bifurcation into two distributaries, and finally a recovery and westward deflection of the main channel. The cognition of the appearance and disappearance with one sandbar and two channels will be helpful in numerical modeling of estuary evolution, and it also has important implications for the regulation of estuarine regions, hazard prevention and channel navigability.(c) 2021 Published by Elsevier B.V. |
| WOS关键词 | EBB-TIDAL DELTA ; MORPHOLOGICAL CHANGE ; SAND DUNES ; MOUTH BAR ; INLET ; SEDIMENTOLOGY ; SIGNATURES ; MIGRATION ; DYNAMICS ; CURRENTS |
| 资助项目 | National Natural Science Foundation of China[51779280] ; National Natural Science Foundation of China[42006157] ; Innovation Group Project of Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)[311021004] ; Applied Basic Research Programs of Guangzhou[2755784] ; Marine Economic Development (six marine industries) Special Fund of Guangdong Province[GDNRC [2021] 41] ; Open Foundation of Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province[2020SS02] ; Belt and Road Special Foundation of the State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering[2020492111] ; [[2021] 41] |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000784307900002 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Innovation Group Project of Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) ; Applied Basic Research Programs of Guangzhou ; Marine Economic Development (six marine industries) Special Fund of Guangdong Province ; Open Foundation of Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province ; Belt and Road Special Foundation of the State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/175056]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liu, Xiaojian; Duan, Zihao |
| 作者单位 | 1.Minist Water Resources, Key Lab Pearl River Estuary Regulat & Protect, Guangzhou 510611, Guangdong, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 3.Pearl River Water Resources Commiss, Pearl River Hydraul Res Inst, Minist Water Resources, Guangzhou 510611, Guangdong, Peoples R China 4.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519000, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Yong,Liu, Xiaojian,Duan, Zihao,et al. Long-term morphodynamic evolution in the Modaomen Estuary of the Pearl River Delta, South China[J]. GEOMORPHOLOGY,2022,398:15. |
| APA | He, Yong.,Liu, Xiaojian.,Duan, Zihao.,Liu, Cheng.,Hou, Peng.,...&Wu, Yao.(2022).Long-term morphodynamic evolution in the Modaomen Estuary of the Pearl River Delta, South China.GEOMORPHOLOGY,398,15. |
| MLA | He, Yong,et al."Long-term morphodynamic evolution in the Modaomen Estuary of the Pearl River Delta, South China".GEOMORPHOLOGY 398(2022):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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