Morphology, Hydraulics and Sediment Transport of an Ice-covered River
Title | Morphology, Hydraulics and Sediment Transport of an Ice-covered River PDF eBook |
Author | Cold Regions Research and Engineering Laboratory (U.S.) |
Publisher | |
Pages | 52 |
Release | 1986 |
Genre | Frazil ice |
ISBN |
This initial study of the ice-covered Tanana River, near Fairbanks, Alaska, attempted to 1) establish field methods for systematic and repetitive quantitative analyses of an ice-covered river's regime, 2) evaluate the instruments and equipment for sampling, and 3) obtain the initial data of a long-term study of ice cover effects on the morphology, hydraulics and sediment transport of a braided river. A methodology was established, and detailed measurements and samplings, including profiling by geophysical techniques, were conducted along cross sections of the river. A small, portable rotary drill rig equipped with a 356-mm (14-in.) ice auger was used to cut large diameter holes in the ice cover for through-the-ice measurements. Portable heat sources and a heated shelter were required to continuously thaw and dry equipment for the repetitive measurements. Measurements included ice cover thickness, water level, water depth, temperature, flow velocity, suspended load and bed load, frazil ice distribution and bed material composition. Remotely gathered data included apparent resistivity and subsurface radar profiling. The various techniques, sampling gear and problems encountered during use in the subfreezing cold are described in detail in this report.
CRREL Report
Title | CRREL Report PDF eBook |
Author | |
Publisher | |
Pages | 480 |
Release | 1990 |
Genre | Cold regions |
ISBN |
Influence of Dynamic Ice Cover on River Hydraulics and Sediment Transport
Title | Influence of Dynamic Ice Cover on River Hydraulics and Sediment Transport PDF eBook |
Author | Soheil Ghareh Aghaji Zare |
Publisher | |
Pages | |
Release | 2017 |
Genre | |
ISBN |
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.
Sediment Transport
Title | Sediment Transport PDF eBook |
Author | Silvia Susana Ginsberg |
Publisher | BoD – Books on Demand |
Pages | 350 |
Release | 2011-04-26 |
Genre | Science |
ISBN | 9533071893 |
Sediment transport is a book that covers a wide variety of subject matters. It combines the personal and professional experience of the authors on solid particles transport and related problems, whose expertise is focused in aqueous systems and in laboratory flumes. This includes a series of chapters on hydrodynamics and their relationship with sediment transport and morphological development. The different contributions deal with issues such as the sediment transport modeling; sediment dynamics in stream confluence or river diversion, in meandering channels, at interconnected tidal channels system; changes in sediment transport under fine materials, cohesive materials and ice cover; environmental remediation of contaminated fine sediments. This is an invaluable interdisciplinary textbook and an important contribution to the sediment transport field. I strongly recommend this textbook to those in charge of conducting research on engineering issues or wishing to deal with equally important scientific problems.
River Morphology
Title | River Morphology PDF eBook |
Author | Joachim Mangelsdorf |
Publisher | Springer Science & Business Media |
Pages | 293 |
Release | 2013-06-29 |
Genre | Science |
ISBN | 3642837778 |
River Morphology deals with the interaction between flowing waters in rivers and their environment. Based on the representation of basic flow parameters, the geometry, classification and historic development of rivers are treated. Any change in the environment, occurring naturally or caused by man, leads to very sensitive reactions in river flow and transport. Thus this synopsis of geoscientific studies and hydraulic engineering experience is presented to help develop the unterstanding of how to handle nature with care.
River Ice Breakup
Title | River Ice Breakup PDF eBook |
Author | S. Beltaos |
Publisher | |
Pages | 0 |
Release | 2008 |
Genre | Frazil ice |
ISBN | 9781887201506 |
The breakup of a river ice cover can be both fascinating and perilous, owing to ever-changing ice conditions and dynamic processes that sometimes lead to extreme flood events caused by ice jams. Though much progress has been made recently in the study of ice jams, less has been achieved on the more general, and more complex, problem of how to predict the entire breakup process, from the first ice movement to the last ice effect on river stage. This type of knowledge is essential to determining when and where ice jam threats may develop and when they may release and generate steep flood waves that can trigger ice runs and jamming further downstream. In turn, such understanding is invaluable to natural hazard reduction, ecosystem conservation and protection, and adaptation to climatic impacts. This book combines the existing information, previously scattered in various journals, conference proceedings, and technical reports. It contains contributions by several authors to achieve a comprehensive and balanced coverage, including qualitative and quantitative descriptions of relevant physical processes, forecasting methods and flood-frequency assessments, as well as ecological impacts and climatic considerations. The book should be of interest to readers of different backgrounds, both beginners and specialists. -- Publisher's website.
Sediment Transport Under Ice
Title | Sediment Transport Under Ice PDF eBook |
Author | Robert Ettema |
Publisher | |
Pages | 54 |
Release | 2004 |
Genre | Ice on rivers, lakes, etc |
ISBN |