IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 32nd Congress - Venice (2007) : THEME A: Engineering and Management of Fresh-water Systems : Learning from the past to improve the future. an ex-post analysis of the german upper rhine
Learning from the past to improve the future. an ex-post analysis of the german upper rhine
Author : Yves Zech, B. Spinewine and C. Carena
To demonstrate the ability of models to predict long-term evolution of fluvial morphology, an ex-post analysis of the Rhine during the last two centuries was carried out. An advantage of such an analysis is that the result is known and can serve straightforwardly to compare with model outputs. Conversely, ancient data is generally difficult to obtain, and the main work in such analysis is the section of a relevant dataset, complementing fragmentary ancient data with more recent data adequately interpreted for reconstructing realistic intitial conditions. The Upper German Rhine has been deeply reshaped by large engineering works in the 19th century. The initially braided reach Basle-Maxau was constricted into a unique channel, while the reach Maxau-Mainz was significantly shortened by numerous meander shortcuts. Both types of works resulted in intense erosion upstream and spread deposition downstream. Using some data from the literature, but also satellite and aerial images freely accessible on the Internet, and hydrologic data also from the Internet, it was possible to qualitatively reproduce most of the observed behaviour of the river.
File Size : 441,371 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 32nd Congress - Venice (2007)
Article : THEME A: Engineering and Management of Fresh-water Systems
Date Published : 01/07/2007
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