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Flow Control To Manage River Ice

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Flow Control To Manage River Ice

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Author : Andrew M. Tuthill
language : en
Publisher:
Release Date : 1999

Flow Control To Manage River Ice written by Andrew M. Tuthill and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Ice on rivers, lakes, etc categories.

This report describes flow-control methods for reducing ice problems in rivers. Objectives include reducing ice interference with winter hydroelectric production and navigation, ice jam flood mitigation, as well as ensuring minimum winter flows for fish and water supply. The winter season is divided into three periods. During early winter, the main objective of flow control is to promote the rapid formation of a smooth, stable ice cover. For the midwinter period, the aim of the river regulation is to maintain an intact ice cover and avoid premature ice breakup. During the final winter period, the goal is to minimize adverse effects of ice breakup. Examples illustrate the methods and objectives, emphasizing innovative approaches. Available flow regulation planning tools are described and valuable research directions identified.

Flow Regulation For Controlled River Ice Formation

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Author : Subhash Chandra Jain
language : en
Publisher:
Release Date : 1993

Flow Regulation For Controlled River Ice Formation written by Subhash Chandra Jain and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Ice on rivers, lakes, etc categories.

Flow Regulation For Controlled River Ice Formation

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Author : Subhash Chandra Jain
language : en
Publisher:
Release Date : 1993

Longitudinal Floating Ice Control Structures

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Author : Darryl J. Calkins
language : en
Publisher:
Release Date : 1990

Longitudinal Floating Ice Control Structures written by Darryl J. Calkins and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Ice on rivers, lakes, etc categories.

Extreme Hydrological Events New Concepts For Security

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Author : O.F. Vasiliev
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-06-17

Extreme Hydrological Events New Concepts For Security written by O.F. Vasiliev and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-06-17 with Technology & Engineering categories.

This book addresses the development of advanced methods for the prediction, the estimation of occurrence probabilities and the risk related to extreme hydrological events. It also discusses the reduction of the vulnerability of social, economic, and engineering systems to extreme hydrologic events and the decrease of their effects on such systems.

Options For Management Of Dynamic Ice Breakup On The Connecticut River Near Windsor Vermont

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Author : Cold Regions Research and Engineering Laboratory (U.S.)
language : en
Publisher:
Release Date : 1988

Options For Management Of Dynamic Ice Breakup On The Connecticut River Near Windsor Vermont written by Cold Regions Research and Engineering Laboratory (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.

The Cornish-Windsor bridge is the longest covered bridge in the United States and has significant historical value. At a large peak flow, dynamic ice breakup of the Connecticut River can threaten the bridge and cause flood damage in the town of Windsor, Vermont. Throughout the 1985-86 winter we regularly monitored ice conditions, including a midwinter dynamic ice breakup on 27 January. We conducted controlled release tests over the operating range of the turbines at Wilder Dam upstream during both open water and ice cover conditions. These data and observations were analyzed in light of more than 60 years of temperature and discharge records. Our analysis indicates that river regulation presents alternatives for ice management that would minimize the probability of bridge damage and flooding during breakup. The flow can be regulated early in the winter to promote the growth of a stable ice cover, minimizing the total ice production in the reach. In the weeks prior to breakup, sustained releases and above-freezing air temperatures cause melting, weakening and gradual breakup of the ice, greatly reducing the flooding potential. Also, it is possible to produce a controlled ice breakup prior to an imminent natural event at lower stage and discharge. All of these ice control alternatives have associated power production costs. Keywords: Cold regions; Field tests; Flood control; Hydraulics; Hydrology; Ice breakup; Ice management; Rivers; River waves.