International specialist Dr. John Sharp , Professor of Geology at University of Texas presented his talk on “Prediction of fracture roughness aperture, and other hydraulic properties: Is upscaling of flow and transport possible?” as NSW first technical talk of 2013. His talk expanded on the current laboratory and field techniques for characterisation of fractures and fracture networks in the assessment of fractured rock aquifers. Due to popular demand this presentation can now be viewed via full presentation as well as complementary images here.