May, FMikes, DBugan, Richard DHJovanovic, NebojsaRozanov, A2011-04-112011-04-112010-11May, F., Mikes, D., Bugan, R. et al. 2010. Characterization and quantification of preferential flow in fractured rock systems, using resistivity tomography. 7th Inkaba Workshop 2010, Potsdam, Germany, 1-5 November 2010, pp 1http://hdl.handle.net/10204/49437th Inkaba Workshop 2010, Potsdam, Germany, 1-5 November 2010In the use of unsaturated zone methods to estimate recharge, the basic assumption is made that recharge occurs by means of diffusive processes (i.e. piston flow occurs). In fractured environments the reliability of recharge estimate have been questionable due to preferred pathways influencing the recharge flux. These preferred pathways have been shown to occur throughout sub-Saharan Africa. The focus of this study is to develop improved methodologies to quantify preferential flow in fracture environments. From the quantification of preferential flow pathways it will be possible to differentiate/identify fast flowing (by-pass through fractures) and slow flowing (water in matrix) conduits. This will lead to the estimation of proportions of slow and fast flowing pathways.enPreferential flowFractured rocksResistivity tomographyRainfallConference PresentationMay, F., Mikes, D., Bugan, R. D., Jovanovic, N., & Rozanov, A. (2010). Characterization and quantification of preferential flow in fractured rock systems, using resistivity tomography. http://hdl.handle.net/10204/4943May, F, D Mikes, Richard DH Bugan, Nebojsa Jovanovic, and A Rozanov. "Characterization and quantification of preferential flow in fractured rock systems, using resistivity tomography." (2010): http://hdl.handle.net/10204/4943May F, Mikes D, Bugan RD, Jovanovic N, Rozanov A, Characterization and quantification of preferential flow in fractured rock systems, using resistivity tomography; 2010. http://hdl.handle.net/10204/4943 .TY - Conference Presentation AU - May, F AU - Mikes, D AU - Bugan, Richard DH AU - Jovanovic, Nebojsa AU - Rozanov, A AB - In the use of unsaturated zone methods to estimate recharge, the basic assumption is made that recharge occurs by means of diffusive processes (i.e. piston flow occurs). In fractured environments the reliability of recharge estimate have been questionable due to preferred pathways influencing the recharge flux. These preferred pathways have been shown to occur throughout sub-Saharan Africa. The focus of this study is to develop improved methodologies to quantify preferential flow in fracture environments. From the quantification of preferential flow pathways it will be possible to differentiate/identify fast flowing (by-pass through fractures) and slow flowing (water in matrix) conduits. This will lead to the estimation of proportions of slow and fast flowing pathways. DA - 2010-11 DB - ResearchSpace DP - CSIR KW - Preferential flow KW - Fractured rocks KW - Resistivity tomography KW - Rainfall LK - https://researchspace.csir.co.za PY - 2010 T1 - Characterization and quantification of preferential flow in fractured rock systems, using resistivity tomography TI - Characterization and quantification of preferential flow in fractured rock systems, using resistivity tomography UR - http://hdl.handle.net/10204/4943 ER -