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Lookup NU author(s): John Richmond, Dr James Bathurst
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A shallow landslide erosion and sediment yield component, applicable at the basin scale, has been incorporated into the physically based, spatially distributed, hydrological and sediment transport modelling system, SHETRAN. The component determines when and where landslides occur in a basin in response to time-varying rainfall and snowmelt, the volume of material eroded and released for onward transport, and the impact on basin sediment yield. Derived relationships are used to link the SHETRAN grid resolution (up to 1 km), at which the basin hydrology and final sediment yield is modelled, to a subgrid resolution (typically around 10-100 m) at which landslide occurrence and erosion is modelled. The subgrid discretization, landslide susceptibility and potential landslide impact are determined in advance using a geographic information system (GIS), with SHETRAN then providing information on temporal variation in the factors controlling landsliding. The ability to simulate landslide sediment yield is demonstrated by a hypothetical application based on a catchment in Scotland.
Author(s): Burton A, Bathurst JC
Publication type: Article
Publication status: Published
Journal: Environmental Geology
Year: 1998
Volume: 35
Issue: 2-3
Pages: 89-99
Print publication date: 27/08/1998
ISSN (print): 0943-0105
ISSN (electronic): 1432-0495
URL: http://dx.doi.org/10.1007/s002540050296
DOI: 10.1007/s002540050296
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