The case of extreme hydrologic drought downstream from reservoirs in Quebec (Canada): The intermittent flow
Abstract Intermittent flow is a hydrological phenomenon observed at all latitudes. This phenomenon is characterized by a complete or partial interruption of flow in time and/or space in channels. In Quebec, even though the climate is humid, intermittent flow occurs downstream from headwater reservoi...
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crwiley:10.1002/rra.3235 2024-06-02T08:11:27+00:00 The case of extreme hydrologic drought downstream from reservoirs in Quebec (Canada): The intermittent flow Azouaoui, O. Assani, A. A. 2017 http://dx.doi.org/10.1002/rra.3235 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Frra.3235 https://onlinelibrary.wiley.com/doi/pdf/10.1002/rra.3235 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor River Research and Applications volume 34, issue 2, page 135-143 ISSN 1535-1459 1535-1467 journal-article 2017 crwiley https://doi.org/10.1002/rra.3235 2024-05-03T11:50:37Z Abstract Intermittent flow is a hydrological phenomenon observed at all latitudes. This phenomenon is characterized by a complete or partial interruption of flow in time and/or space in channels. In Quebec, even though the climate is humid, intermittent flow occurs downstream from headwater reservoirs. These reservoirs store water during spring and summer (from April to September) and release it in winter to supply hydroelectric power plants located downstream. During the water storage period, intermittent flow is common (discharges falling to <1 L/s/km 2 ). The goal of the study is to analyse the characteristics (magnitude, frequency, and duration) of this flow downstream from 3 reservoirs built in the Saint‐Maurice River watershed, during the period from 1930 to 2010. Downstream, the contribution (magnitude) of intermittent flow to total altered flow is less than 2%. Intermittent flow frequency ranges from 24 to 65 days per year downstream from the 3 reservoirs. As far as duration is concerned, intermittent flow persists on average from 40 to 128 consecutive days. Canonical correlation analysis revealed that the frequency of intermittent flow is correlated with the North Atlantic Oscillation and its magnitude and negatively correlated with the Southern Oscillation. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Wiley Online Library Canada Maurice ENVELOPE(-55.817,-55.817,-63.133,-63.133) River Research and Applications 34 2 135 143 |
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Open Polar |
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Wiley Online Library |
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English |
description |
Abstract Intermittent flow is a hydrological phenomenon observed at all latitudes. This phenomenon is characterized by a complete or partial interruption of flow in time and/or space in channels. In Quebec, even though the climate is humid, intermittent flow occurs downstream from headwater reservoirs. These reservoirs store water during spring and summer (from April to September) and release it in winter to supply hydroelectric power plants located downstream. During the water storage period, intermittent flow is common (discharges falling to <1 L/s/km 2 ). The goal of the study is to analyse the characteristics (magnitude, frequency, and duration) of this flow downstream from 3 reservoirs built in the Saint‐Maurice River watershed, during the period from 1930 to 2010. Downstream, the contribution (magnitude) of intermittent flow to total altered flow is less than 2%. Intermittent flow frequency ranges from 24 to 65 days per year downstream from the 3 reservoirs. As far as duration is concerned, intermittent flow persists on average from 40 to 128 consecutive days. Canonical correlation analysis revealed that the frequency of intermittent flow is correlated with the North Atlantic Oscillation and its magnitude and negatively correlated with the Southern Oscillation. |
format |
Article in Journal/Newspaper |
author |
Azouaoui, O. Assani, A. A. |
spellingShingle |
Azouaoui, O. Assani, A. A. The case of extreme hydrologic drought downstream from reservoirs in Quebec (Canada): The intermittent flow |
author_facet |
Azouaoui, O. Assani, A. A. |
author_sort |
Azouaoui, O. |
title |
The case of extreme hydrologic drought downstream from reservoirs in Quebec (Canada): The intermittent flow |
title_short |
The case of extreme hydrologic drought downstream from reservoirs in Quebec (Canada): The intermittent flow |
title_full |
The case of extreme hydrologic drought downstream from reservoirs in Quebec (Canada): The intermittent flow |
title_fullStr |
The case of extreme hydrologic drought downstream from reservoirs in Quebec (Canada): The intermittent flow |
title_full_unstemmed |
The case of extreme hydrologic drought downstream from reservoirs in Quebec (Canada): The intermittent flow |
title_sort |
case of extreme hydrologic drought downstream from reservoirs in quebec (canada): the intermittent flow |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1002/rra.3235 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Frra.3235 https://onlinelibrary.wiley.com/doi/pdf/10.1002/rra.3235 |
long_lat |
ENVELOPE(-55.817,-55.817,-63.133,-63.133) |
geographic |
Canada Maurice |
geographic_facet |
Canada Maurice |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
River Research and Applications volume 34, issue 2, page 135-143 ISSN 1535-1459 1535-1467 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/rra.3235 |
container_title |
River Research and Applications |
container_volume |
34 |
container_issue |
2 |
container_start_page |
135 |
op_container_end_page |
143 |
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1800757588106674176 |