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• W4256107089 abstract "PreviousNext No AccessSymposium on the Application of Geophysics to Engineering and Environmental Problems 2008Using Electrical Resistivity to Model Channel Seepage from Irrigation CanalsAuthors: Jacqui WattShahbaz KhanAkhtar AbbasJacqui WattInternational Centre of WATER for Food Security, Wagga Wagga, AustraliaSearch for more papers by this author, Shahbaz KhanInternational Centre of WATER for Food Security, Wagga Wagga, AustraliaSearch for more papers by this author, and Akhtar AbbasInternational Centre of WATER for Food Security, Wagga Wagga, AustraliaSearch for more papers by this authorhttps://doi.org/10.4133/1.2963262 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract There is increased pressure on water managers, as a whole, to improve their water use efficiency. In irrigation areas, a major aspect of water usage is the seepage of water from irrigation canals. In Australia significant amounts of water may be lost from irrigation canals through seepage and evaporation. The methodology applied for this paper uses the measurement of the soil resistivity to aid water managers in the determining the quantity of seepage from irrigation canals. Initially, the resistivity of the irrigation canal bed was measured, followed by soil sampling and analysis. The spatial and resistive variability was established from the resistivity measurements and was inputted into the HYDRUS 2D/3D model according to resistive groupings. The soil analysis resulted in the particle size, bulk density and hydraulic conductivity and these were inputted for the respective soil group into the model. The modelling was conducted over 30 years and the results determined the soil type plays an initial role in the seepage from irrigation canals. However, once the profile becomes saturated it does not matter which soil types are present. The method outlined employs the rapid assessment technique of resistivity to improve the understanding of seepage of irrigation canals.Permalink: https://doi.org/10.4133/1.2963262FiguresReferencesRelatedDetailsCited ByStructured analysis of seepage losses in irrigation supply channels for cost-effective investments: case studies from the southern Murray-Darling Basin of Australia15 May 2011 | Irrigation Science, Vol. 31, No. 1 Symposium on the Application of Geophysics to Engineering and Environmental Problems 2008ISSN (online):1554-8015Copyright: 2008 Pages: 1427 publication data© 2008 Copyright © 2008 The Environmental and Engineering Geophysical SocietyPublisher:Environmental & Engineering Geophysical Society HistoryPublished: 30 Sep 2008 CITATION INFORMATION Jacqui Watt, Shahbaz Khan, and Akhtar Abbas, (2008), Using Electrical Resistivity to Model Channel Seepage from Irrigation Canals, Symposium on the Application of Geophysics to Engineering and Environmental Problems Proceedings : 233-240. https://doi.org/10.4133/1.2963262 Plain-Language Summary PDF DownloadLoading ..." @default.
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