منابع مشابه
The Hydraulics of River Ice
Henry S. Santeford;"~ln'd GeorgeR . Alger Department of Civil Engineering, Michigan Technological University Houghton, MI 49931 U.S.A. INTRODUCTION The formation and occurrence of an ice cover on an open channel may cause a very dynamic alteration in the flow characteristics. At times, the alterations will represent some of the largest natural changes that will occur on a giVen stream. Yet, Dn ...
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IN T R O D U C T IO N Bridges are an integral part of any highway system. The design of a particular bridge depends on many variables. A major considera tion, often necessary, is the length of the bridge. In certain circum stances and locations the length may be dictated by factors other than cost. But, where necessary the designer must decide, “How far can the bridge approaches extend onto t...
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We present a method to use lagrangian data from remote sensing observation in a variational data assimilation process for a river hydraulics model based on the bidimensional shallow water equations. The trajectories of particles advected by the flow can be extracted from video images and are used in addition to classical eulerian observations. This lagrangian data brings information on the surf...
متن کاملPolarimetric Backscattering Behavior of River Ice Cover
In many northern rivers of Canada, the formation of the ice covers leads to important situations: ice jamming, and then flooding of large areas. Thus, the monitoring of river ice is necessary. Gherboudj has developed a model in order to understand the interactions of the radar signal with the river ice cover. The model is improved to simulate the fully polarimetric response of a river ice cover...
متن کاملA Case Study of the Temporal and Spatial Distribution of River Hydraulics and Habitat in the Wu-chi river, Taiwan
Based on the premise of flood management, administration of rivers in Taiwan consists of building many water structures to protect the lives and properties of people. But the ecological equilibrium of the area may possibly be damaged. Thus, how to maintain the ecological instream flow and how to lessen the negative impact of human development on river ecology are topics that have to be further ...
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ژورنال
عنوان ژورنال: La Houille Blanche
سال: 1968
ISSN: 0018-6368,1958-5551
DOI: 10.1051/lhb/1968020