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.
Log On
About IAHRDirectoryCommitteesMy IAHRNews & JournalseLibraryeShopEventsJoin IAHRWorld CongressDonate
spacer.gif
spacer.gif eLibrary
spacer.gif eLibrary
You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 5: Environmental Hydraulics and Hydrology : The influence of physical factors on channel morphology and geomorphic diversity
The influence of physical factors on channel morphology and geomorphic diversity
Author : A. White1, S. Rayburg2* and M. Neave2
This study investigates the influence of three external factors (channel confinement, riparian vegetation and the presence of in-channel islands and bars) on the downstream morphology and variability of a 600-m reach of the Turon River, NSW, Australia. Statistical analyses revealed that the magnitude and diversity of longitudinal morphologic variables varied between the external factors. For all factors, the influence of each was more relevant to the diversity of the longitudinal variables than their magnitude. Of these, confined channels were shown to be more heterogeneous than partially or unconfined channels, channels with dense riparian vegetation on both banks were more heterogeneous than those with riparian vegetation on only one bank and channel reaches lacking island or bars were more heterogeneous than those containing islands or bars. These findings are significant in that they demonstrate that heterogeneity, or diversity, can be a more important measure of the influence of an external factor on channel morphology than measures of channel size.
File Size : 302,540 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 5: Environmental Hydraulics and Hydrology
Date Published : 01/07/2011
Download Now