Dam Operation for Mitigating Ice Jam Flooding Risks under the Adjustment of River Channel-Forms: Implications from an Evaluation in the Ningxia-Inner Mongolia Reach of the Upper Yellow River, China
文献类型：期刊论文
| 作者 | Su, Teng1,2; Huang, Heqing1,2; Zhou, Yuanyuan1; Yu, Guoan1,2 |
| 刊名 | WATER
 |
| 出版日期 | 2019-06-01 |
| 卷号 | 11期号:6页码:18 |
| 关键词 | ice jam flooding dam operation risk mitigation river channel-form adjustment Upper Yellow River |
| ISSN号 | 2073-4441 |
| DOI | 10.3390/w11061136 |
| 通讯作者 | Huang, Heqing(huanghq@igsnrr.ac.cn) |
| 英文摘要 | Dam operation has been widely deployed to mitigate the risks of ice jam flooding, but it may result in a decrease in the discharging capacities of downstream river channels. The Ningxia-Inner Mongolia reach of the Huanghe River (Yellow River) has historically suffered numerous disasters caused by ice jam flooding, and three large dams have been jointly operated to mitigate such risks since 1968. Whilst the resultant significant increases in both the annual runoff and mean water temperature during the ice jam flooding seasons helped to shorten the freezing-up duration and reduce the thickness of the ice cover, a significant channel shrinkage occurred in the reach when the dam operation took place under the input of a relatively larger amount of sediment from the upstream. In the new flow regime that commenced in 2008, a detailed examination of the river channel-form adjustments and the resultant changes to the discharging capacities identified a slight increase in the discharging capacity of the channel along the entire study reach. This was mainly due to a significantly smaller amount of sediment load being carried by a slightly increased annual runoff. Whilst it was demonstrated that the dam operation was still an effective means for mitigating the risk of ice jam flooding in the Ningxia-Inner Mongolia reach under the new flow regime, care needs to be taken when the favorable flow-sediment condition changes. Furthermore, the effectiveness of the dam operation appeared to vary significantly at the channel sections of different planforms; thus, more detailed studies are required. |
| WOS关键词 | FLOW REGIME ; APPLICABILITY ; DOWNSTREAM ; TRENDS |
| 资助项目 | National Key Research and Development Program of China[2016YFC0402502] ; National Natural Science Foundation of China[41330751] ; National Natural Science Foundation of China[41561144012] ; Yellow River Institute of Hydraulic Research[HKY-JBYW-2017-05] |
| WOS研究方向 | Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000475346300024 |
| 出版者 | MDPI |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Yellow River Institute of Hydraulic Research |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/58265]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Huang, Heqing |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, 11A Datun Rd, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, Teng,Huang, Heqing,Zhou, Yuanyuan,et al. Dam Operation for Mitigating Ice Jam Flooding Risks under the Adjustment of River Channel-Forms: Implications from an Evaluation in the Ningxia-Inner Mongolia Reach of the Upper Yellow River, China[J]. WATER,2019,11(6):18. |
| APA | Su, Teng,Huang, Heqing,Zhou, Yuanyuan,&Yu, Guoan.(2019).Dam Operation for Mitigating Ice Jam Flooding Risks under the Adjustment of River Channel-Forms: Implications from an Evaluation in the Ningxia-Inner Mongolia Reach of the Upper Yellow River, China.WATER,11(6),18. |
| MLA | Su, Teng,et al."Dam Operation for Mitigating Ice Jam Flooding Risks under the Adjustment of River Channel-Forms: Implications from an Evaluation in the Ningxia-Inner Mongolia Reach of the Upper Yellow River, China".WATER 11.6(2019):18. |
入库方式： OAI收割
来源：地理科学与资源研究所
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