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Impact of Dam and Climate on Flow Alteration and Pathways to Mitigate Them Using Reservoir Reoperation.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Impact of Dam and Climate on Flow Alteration and Pathways to Mitigate Them Using Reservoir Reoperation./
作者:	Chalise, Dol Raj.
面頁冊數:	1 online resource (136 pages)
附註:	Source: Dissertations Abstracts International, Volume: 84-02, Section: B.
Contained By:	Dissertations Abstracts International84-02B.
標題:	Dams. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29228693click for full text (PQDT)
ISBN:	9798841530183

Impact of Dam and Climate on Flow Alteration and Pathways to Mitigate Them Using Reservoir Reoperation.
Chalise, Dol Raj.

Impact of Dam and Climate on Flow Alteration and Pathways to Mitigate Them Using Reservoir Reoperation. - 1 online resource (136 pages)

Source: Dissertations Abstracts International, Volume: 84-02, Section: B.

Thesis (Ph.D.)--North Carolina State University, 2022.

Includes bibliographical references

Water is one of the most critical substances for life on earth: it is essential for socioeconomic development, healthy ecosystems, and for human survival itself. As the water demand grows, the effect of climate change could further increase water stress levels globally. Given the imbalance between supply and demand, water resource management in both local and global context requires a holistic approach. In this context, water storage held in reservoirs should be efficiently managed to meet the growing demand of various activities as the natural water supply is dwindling. This research focuses on the national assessment of reservoir impacts on ecosystem health and also use that information to optimally allocate water by evaluating strategies that specify water for human needs and ecosystem needs. First, the combined effect of dams and climate change on river flow regime changes is examined across the coterminous United States (CONUS), based on 730 stations having long-term daily discharge data. I found that these two stressors often interacted, and the magnitude and direction of such interactions often depended on the aspect of the flow regime being examined, and the local context. Second, the characteristics of human and climate-induced flow alteration on riverine ecosystems over different spatial and temporal scales is examined. I found that flow alteration is time and frequency dependent and the alteration varies across different time scales. Larger dams can modulate natural flow variance and could mitigate climate-induced flow alteration more readily than smaller dams over a longer period (> 3 years periodicity). Third, time-frequency variability of ecological demand is incorporated in a multireservoir decision framework. The modeling framework is tested in three major multiple-purpose reservoirs in the Chattahoochee river basin, which is part of the Apalachicola-Chattahoochee-Flint (ACF) river basin, from the southeastern U.S. Different strategies were developed for reducing flow alteration without compromising the release for human needs in the Chattahoochee basin. The study demonstrates that optimal operation of multireservoirs can meet ecological demand without compromising human needs and increased flood risk. This provides a framework to develop optimal water allocation strategies that specify water at river basin scale, thereby providing a pathway for correcting altered flow regimes at the national scale.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798841530183Subjects--Topical Terms:

587778
Dams.
Index Terms--Genre/Form:

542853
Electronic books.

Impact of Dam and Climate on Flow Alteration and Pathways to Mitigate Them Using Reservoir Reoperation.
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245 1 0 $a Impact of Dam and Climate on Flow Alteration and Pathways to Mitigate Them Using Reservoir Reoperation.
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300 $a 1 online resource (136 pages)
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500 $a Source: Dissertations Abstracts International, Volume: 84-02, Section: B.
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502 $a Thesis (Ph.D.)--North Carolina State University, 2022.
504 $a Includes bibliographical references
520 $a Water is one of the most critical substances for life on earth: it is essential for socioeconomic development, healthy ecosystems, and for human survival itself. As the water demand grows, the effect of climate change could further increase water stress levels globally. Given the imbalance between supply and demand, water resource management in both local and global context requires a holistic approach. In this context, water storage held in reservoirs should be efficiently managed to meet the growing demand of various activities as the natural water supply is dwindling. This research focuses on the national assessment of reservoir impacts on ecosystem health and also use that information to optimally allocate water by evaluating strategies that specify water for human needs and ecosystem needs. First, the combined effect of dams and climate change on river flow regime changes is examined across the coterminous United States (CONUS), based on 730 stations having long-term daily discharge data. I found that these two stressors often interacted, and the magnitude and direction of such interactions often depended on the aspect of the flow regime being examined, and the local context. Second, the characteristics of human and climate-induced flow alteration on riverine ecosystems over different spatial and temporal scales is examined. I found that flow alteration is time and frequency dependent and the alteration varies across different time scales. Larger dams can modulate natural flow variance and could mitigate climate-induced flow alteration more readily than smaller dams over a longer period (> 3 years periodicity). Third, time-frequency variability of ecological demand is incorporated in a multireservoir decision framework. The modeling framework is tested in three major multiple-purpose reservoirs in the Chattahoochee river basin, which is part of the Apalachicola-Chattahoochee-Flint (ACF) river basin, from the southeastern U.S. Different strategies were developed for reducing flow alteration without compromising the release for human needs in the Chattahoochee basin. The study demonstrates that optimal operation of multireservoirs can meet ecological demand without compromising human needs and increased flood risk. This provides a framework to develop optimal water allocation strategies that specify water at river basin scale, thereby providing a pathway for correcting altered flow regimes at the national scale.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Dams. $3 587778
650 4 $a Water supply. $3 736103
650 4 $a Creeks & streams. $3 3685269
650 4 $a Water shortages. $3 3560043
650 4 $a Watersheds. $3 544815
650 4 $a Drainage. $3 548581
650 4 $a River ecology. $3 3685237
650 4 $a Reservoirs. $3 671697
650 4 $a Recreation. $3 535376
650 4 $a Irrigation. $3 778786
650 4 $a Ecosystems. $3 595401
650 4 $a Stream flow. $3 3560049
650 4 $a Climate change. $2 bicssc $3 2079509
650 4 $a Hydroelectric power. $3 3686711
650 4 $a Alternative energy. $3 3436775
650 4 $a Aquatic sciences. $3 3174300
650 4 $a Ecology. $3 516476
650 4 $a Energy. $3 876794
650 4 $a Water resources management. $3 794747
650 4 $a Hydrologic sciences. $3 3168407
650 4 $a Natural resource management. $3 589570
655 7 $a Electronic books. $2 lcsh $3 542853
690 $a 0404
690 $a 0814
690 $a 0363
690 $a 0792
690 $a 0329
690 $a 0791
690 $a 0595
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690 $a 0454
690 $a 0528
710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a North Carolina State University. $3 1018772
773 0 $t Dissertations Abstracts International $g 84-02B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29228693 $z click for full text (PQDT)