Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021WR030421 |
A method for assessment of sub-daily flow alterations using wavelet analysis for regulated rivers | |
Faisal Bin Ashraf; Ali Torabi Haghighi; Joakim Riml; G. Mathias Kondolf; Bjø; rn Klø; ve; Hannu Marttila | |
2021-12-20 | |
发表期刊 | Water Resources Research |
出版年 | 2021 |
英文摘要 | New tools are needed to evaluate the impacts of short-term hydropower regulation practices on downstream river systems and to progress towards sustainable river-flow management. As hydropower is increasingly being used to balance the energy load deficit caused by other less flexible sources, sub-daily flow conditions across many regulated river systems are changing. To address this, we used wavelet analyses to quantify the discharge variability in Regulated Rivers and categorised the level of variability based on the conditions in natural Free-Flowing Rivers. The presented framework used the definition of fluvial connectivity (Grill et al., 2019) to identify free-flowing rivers used in the study. We tested the developed framework in 12 different regulated rivers in Finland and found higher overall averaged subdaily variations, with up to 20 times larger variability than natural conditions. A large, highly regulated Finnish river system was found to have the highest sub-daily variations in winter, while smaller Regulated Rivers with lower levels of regulation the highest variations in summer. The proposed framework offers a novel tool for sustainable river management and can be easily applied to various rivers and regions globally. It had flexibility to analyse sub-daily variations in desired seasonal or other ecologically sensitive periods. This article is protected by copyright. All rights reserved. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/344142 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Faisal Bin Ashraf,Ali Torabi Haghighi,Joakim Riml,et al. A method for assessment of sub-daily flow alterations using wavelet analysis for regulated rivers[J]. Water Resources Research,2021. |
APA | Faisal Bin Ashraf.,Ali Torabi Haghighi.,Joakim Riml.,G. Mathias Kondolf.,Bjø.,...&Hannu Marttila.(2021).A method for assessment of sub-daily flow alterations using wavelet analysis for regulated rivers.Water Resources Research. |
MLA | Faisal Bin Ashraf,et al."A method for assessment of sub-daily flow alterations using wavelet analysis for regulated rivers".Water Resources Research (2021). |
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