Factors Influencing Ice Conveyance At River Confluences

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Factors Influencing Ice Conveyance At River Confluences

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Author : R. Ettema
language : en
Publisher:
Release Date : 1997

Factors Influencing Ice Conveyance At River Confluences written by R. Ettema and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Fluid dynamic measurements categories.

This report documents preliminary findings concerning ice jam conditions in river confluences, using two laboratory approaches. First is categorizing the different conditions of ice discharge into a confluence based on two general classifications: free drift of ice and movement of contiguous ice accumulations. The variables defining ice discharge for the two categories are assembled via dimensional analysis into two consistent sets of nondimensional parameters. The categorization, together with the nondimensional parameters, is used to evaluate ice jam problems at confluences the two most common causes of jams seem to be sluggish water velocities in the outflow channel and local bathymetric features. The second approach examines how confluence geometry and flow processes affect ice discharge for example, the influence on ice discharge of bathymetric features. The approach uses a large hydraulic model of a two channel confluence, which is adaptable to a variety of channels, and particle image velocimetry (PIV) for determining and mapping whole fields of water and ice velocities in a confluence. PIV, which is becoming extensively used, lends itself very well here. This study is the first demonstration of the PIV method for ice movement through a two river confluence. It shows promise. The hydraulic model and PIV method are used in a case study of ice discharge through the confluence of the Missouri and Mississippi rivers, a confluence prone to severe ice jams.

Factors Influencing Ice Conveyance At River Confluences

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Author :
language : en
Publisher:
Release Date : 1997

Factors Influencing Ice Conveyance At River Confluences written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Fluid dynamic measurements categories.

Ice Jams In River Confluences

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Author : R. Ettema
language : en
Publisher:
Release Date : 1999

Ice Jams In River Confluences written by R. Ettema 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.

River Confluences Tributaries And The Fluvial Network

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Author : Stephen Rice
language : en
Publisher: John Wiley & Sons
Release Date : 2008-07-31

River Confluences Tributaries And The Fluvial Network written by Stephen Rice and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-07-31 with Science categories.

River Confluences and the Fluvial Network brings together state of the art thinking on confluence dynamics tributary impacts and the links between processes at these scales and river network functions. The book is unique in focus, content, scope and in bringing together engineering, ecological and geomorphological approaches to the three key areas of river system science. Taking a global approach this multi-authored text features a team of carefully selected, internationally renowned, experts who have all contributed significantly to recent ground breaking advancements in the field. Each chapter includes a comprehensive review of work to date highlighting recent discoveries and the main thrust of knowledge, previously unpublished research and case studies, challenges and questions, detailed references as well as a forward looking assessment of the state of the science.

River Ice Processes And Ice Flood Forecasting

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Author : Karl-Erich Lindenschmidt
language : en
Publisher: Springer Nature
Release Date : 2019-09-25

River Ice Processes And Ice Flood Forecasting written by Karl-Erich Lindenschmidt and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-09-25 with Technology & Engineering categories.

This book exposes practitioners and students to the theory and application of river and lake ice processes to gain a better understanding of these processes for modelling and forecasting. It focuses on the following processes of the surface water ice: freeze-up, ice cover thickening, ice cover breakup and ice jamming. The reader will receive a fundamental understanding of the physical processes of each component and how they are applied in monitoring and modelling ice covers during the winter season and forecasting ice floods. Exercises accompany each component to reinforce the theoretical principles learned. These exercises will also expose the reader to different tools to process data, such a space-borne remote sensing imagery for ice cover classification. A thread supporting numerical modelling of river ice and lake ice processes runs through the book.

Technical And Economic Problems Of Channel Icing

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Author :
language : en
Publisher: PIANC
Release Date : 2004

Technical And Economic Problems Of Channel Icing written by and has been published by PIANC this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Channels (Hydraulic engineering) categories.

Crrel Bibliography

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Author :
language : en
Publisher:
Release Date : 1998

Crrel Bibliography written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Cold regions categories.

Factors Affecting The Mobilization Transport And Bioavailability Of Mercury In Reservoirs In The Upper Missouri River Basin

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Author : Glenn R. Phillips
language : en
Publisher:
Release Date : 1987

Factors Affecting The Mobilization Transport And Bioavailability Of Mercury In Reservoirs In The Upper Missouri River Basin written by Glenn R. Phillips and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Mercury categories.

Influence Of Dynamic Ice Cover On River Hydraulics And Sediment Transport

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Author : Soheil Ghareh Aghaji Zare
language : en
Publisher:
Release Date : 2017

Influence Of Dynamic Ice Cover On River Hydraulics And Sediment Transport written by Soheil Ghareh Aghaji Zare and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.

New subroutines are designed and added to extend the model capability to include simulation of ice processes during the ice cover break-up and finally to calculate the sediment transport under the ice cover. Step 6: As the final step, the new subroutines are adjusted and linked to the main improved code, providing a new framework for dynamic ice cover simulation, more prepared for further future improvements both in terms of conceptual and programming aspects of the river ice modeling . The new Matlab basis of the code facilitates upgrading the model to include more complicated processes like river ice jam simulations. As the general result of this thesis, we have a better understanding of hydraulics and sediment transport processes in ice covered rivers ( direct and indirect measurements of river hydraulics characteristics), improved formulas for these processes (including more involving parameters) and a better version of the river ice simulation model (capable of simulating the complete river ice processes) for the contributors to this study in the industry.

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.