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Lookup NU author(s): Dr James Bathurst, Justin Sheffield, Robert Hiley
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The physically-based, distributed flow and sediment transport modelling system SHETRAN was applied to the Draix basins to test its ability to represent badlands flow and erosion response, to quantify characteristic parameter values and to investigate spatial scale effects in badlands modelling. A unit gully, area 0.133 ha, was simulated using a 5-m grid resolution model and a single cell model, with comparable results. Application of the models to a badlands basin, area 86 ha, suggests that transfer of parameter sets from the gully scale to a larger scale may be feasible but, given uncertainty in parameter evaluation, a separate calibration still yields improved results. Considering the flashy basin responses, satisfactory flow simulations were achieved using physically realistic parameter values, and sediment yields were well simulated within the bounds of uncertainty. Any scale effects which may distinguish the gully and basin simulations are masked by the uncertainty in parameter evaluation.
Author(s): Bathurst JC, Lukey B, Sherffield J, Hiley RA, Mathys N
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: Modelling soil erosion, sediment transport and closely related hydrological processes
Year of Conference: 1998
Pages: 129-136
Publisher: IAHS
URL: http://books.google.co.uk/books?id=-0TSyVTkVDMC&dq=Modelling+badlands+erosion+with+SHETRAN+at+Draix,+southeast+France&source=gbs_navlinks_s
Library holdings: Search Newcastle University Library for this item
ISBN: 1901502503
