| Streamflow changes over Siberian Yenisei River Basin | |
| Yang, DQ; Ye, BS; Kane, DL | |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 2004-08-20 | |
| 卷号 | 296期号:1-4页码:59-80 |
| 关键词 | streamflow regime and change dams Yenisei River Siberia |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2004.03.017 |
| 通讯作者 | Yang, DQ(ffdy@uaf.edu) |
| 英文摘要 | This study analyzes long-term (1935-99) monthly discharge data for the major sub-basins within the Yenisei River watershed in order to document significant streamflow changes induced by reservoir regulations and by natural variations/changes. The results show that both the unregulated upper basin and major lower streams of the watershed experienced streamflow decreases in the early melt period and discharge increases in the late melt season. These changes in snowmelt runoff pattern suggest a delay in snowcover melt in the Yenisei basin perhaps associated with cooling trends during the snowmelt months over central Siberia. This study also demonstrates that the reservoir regulation has significantly altered the monthly discharge regimes in northeast and the upper portions of the Yenisei basin. Constructions of four large dams in the northeast Yensiei regions reduced the summer peak flows in the Angara valley by 15-30% and increased the winter low flows by 5-30%. Operations of two large reservoirs in the upper Yenisei regions enhanced the winter flows by 45-85% and reduced the summer flows by 10-50%. These alterations lead to a streamflow regime change toward less seasonal variation over the eastern and lower Yenisei basin. Because of reservoir regulations, discharge records collected at the Yenisei basin outlet do not always represent natural changes and variations, they tend to underestimate the natural streamflow trends in summer and overestimate the trends in winter and fall seasons. Cold season discharge increase over the Yenisei river is not natural-caused, but mainly the effect of reservoir regulations in the Yenisei basin. (C) 2004 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | CLIMATE-CHANGE ; WATER-BALANCE ; GLOBAL RIVERS ; DISCHARGE ; ICE ; SIMULATION ; SYSTEMS ; IMPACTS ; RUNOFF ; TRENDS |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| WOS类目 | Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000223149300004 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2555591 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Yang, DQ |
| 作者单位 | 1.Univ Alaska Fairbanks, Water & Environm Res Ctr, Fairbanks, AK 99775 USA 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, DQ,Ye, BS,Kane, DL. Streamflow changes over Siberian Yenisei River Basin[J]. JOURNAL OF HYDROLOGY,2004,296(1-4):59-80. |
| APA | Yang, DQ,Ye, BS,&Kane, DL.(2004).Streamflow changes over Siberian Yenisei River Basin.JOURNAL OF HYDROLOGY,296(1-4),59-80. |
| MLA | Yang, DQ,et al."Streamflow changes over Siberian Yenisei River Basin".JOURNAL OF HYDROLOGY 296.1-4(2004):59-80. |
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