Articles | Volume 20, issue 9
https://doi.org/10.5194/hess-20-3581-2016
https://doi.org/10.5194/hess-20-3581-2016
Research article
 | 
06 Sep 2016
Research article |  | 06 Sep 2016

Using radon to understand parafluvial flows and the changing locations of groundwater inflows in the Avon River, southeast Australia

Ian Cartwright and Harald Hofmann

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Cited articles

Atkinson, A., Cartwright, I., Gilfedder, B., Hofmann, H., Unland, N., Cendón, D., and Chisari, R.: A multi-tracer approach to quantifying groundwater inflows to an upland river; assessing the influence of variable groundwater chemistry, Hydrol. Process., 29, 1–12, 2015.
Barron, O., Silberstein, R., Ali, R., Donohue, R., McFarlane, D. J., Davies, P., Hodgson, G., Smart, N., and Donn, M.: Climate change effects on water-dependent ecosystems in south-western Australia, J. Hydrol., 434–435, 95–109, 2012.
Boulton, A. J., Findlay, S., Marmonier, P., Stanley, E. H., and Maurice Valett, H.: The functional significance of the hyporheic zone in streams and rivers, Annu. Rev. Ecol. Syst., 29, 59–81, 1998.
Bourke, S. A., Cook, P. G., Shanafield, M., Dogramaci, S., and Clark, J. F.: Characterisation of hyporheic exchange in a losing stream using radon-222, J. Hydrol., 519, 94–105, 2014a.
Bourke, S. A., Harrington, G. A., Cook, P. G., Post, V. E., and Dogramaci, S.: Carbon-14 in streams as a tracer of discharging groundwater, J. Hydrol., 519, 117–130, 2014b.
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This paper uses the natural geochemical tracer Rn together with streamflow measurements to differentiate between actual groundwater inflows and water that exits the river, flows through the near-river sediments, and subsequently re-enters the river downstream (parafluvial flow). Distinguishing between these two components is important to understanding the water balance in gaining streams and in managing and protecting surface water resources.
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