A cellular model of Holocene upland river basin and alluvial fan evolution

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dc.contributor.author Kirkby, M. J.
dc.contributor.author Macklin, Mark G.
dc.contributor.author Coulthard, Tom J.
dc.date.accessioned 2011-09-06T10:58:57Z
dc.date.available 2011-09-06T10:58:57Z
dc.date.issued 2011-09-06
dc.identifier.citation Kirkby , M J , Macklin , M G & Coulthard , T J 2011 , ' A cellular model of Holocene upland river basin and alluvial fan evolution ' Earth Surface Processes and Landforms , pp. 269-288 . en
dc.identifier.other PURE: 170430
dc.identifier.other dspace: 2160/7553
dc.identifier.uri http://hdl.handle.net/2160/7553
dc.description Coulthard, T. J., Macklin, M. G., Kirkby, M. J. (2002). A cellular model of Holocene upland river basin and alluvial fan evolution. Earth Surface Processes and Landforms, 27 (3), 269-288. en
dc.description.abstract The CAESAR (Cellular Automaton Evolutionary Slope And River) model is used to simulate the Holocene development of a small upland catchment (4.2 km(2)) and the alluvial fan at its base. The model operates at a 3 m grid scale and simulates every flood over the last 9200 years. using a rainfall record reconstructed from peat bog wetness indices and land cover history derived from palynological sources. Model results show that the simulated catchment sediment discharge above the alluvial fan closely follows the climate signal, but with an increase in the amplitude of response after deforestation. The important effects of sediment storage and remobilization are shown, and findings suggest that soil creep rates may be an important control on long term (> 1000 years) temperate catchment sediment yield. The simulated alluvial fan shows a complex and episodic behaviour, with frequent avulsions across the fan surface. However. there appears to be no clear link between fan response and climate or land use changes suggesting that Holocene alluvial fan dynamics may be the result of phases of sediment storage and remobilization, or instabilities and thresholds within the fan itself. Copyright (C) 2002 John Wiley Sons, Ltd. en
dc.format.extent 20 en
dc.language.iso eng
dc.relation.ispartof Earth Surface Processes and Landforms en
dc.title A cellular model of Holocene upland river basin and alluvial fan evolution en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.contributor.institution Institute of Geography & Earth Sciences en
dc.contributor.institution River Basin Dynamics and Hydrology en
dc.description.status Peer reviewed en


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