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Earth Surface Dynamics An interactive open-access journal of the European Geosciences Union
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Volume 4, issue 3 | Copyright
Earth Surf. Dynam., 4, 757-771, 2016
https://doi.org/10.5194/esurf-4-757-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 30 Sep 2016

Research article | 30 Sep 2016

The sensitivity of landscape evolution models to spatial and temporal rainfall resolution

Tom J. Coulthard and Christopher J. Skinner
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Cited articles
Andréassian, V., Perrin, C., Michel, C., Usart-Sanchez, I., and Lavabre, J.: Impact of imperfect rainfall knowledge on the efficiency and the parameters of watershed models, J. Hydrol., 250, 206–223, https://doi.org/10.1016/S0022-1694(01)00437-1, 2001.
Andréassian, V., Le Moine, N., Perrin, C., Ramos, M.-H., Oudin, L., Mathevet, T., Lerat, J., and Berthet, L.: All that glitters is not gold: the case of calibrating hydrological models, Hydrol. Process., 26, 2206–2210, https://doi.org/10.1002/hyp.9264, 2012.
Bates, P. D., Horritt, M. S., and Fewtrell, T. J.: A simple inertial formulation of the shallow water equations for efficient two-dimensional flood inundation modelling, J. Hydrol., 387, 33–45, https://doi.org/10.1016/j.jhydrol.2010.03.027, 2010.
Beven, K.: A manifesto for the equifinality thesis, J. Hydrol., 320, 18–36, https://doi.org/10.1016/j.jhydrol.2005.07.007, 2006.
Beven, K. and Hornberger, G.: Assessing the Effect of Spatial Pattern of Precipitation in Modeling Stream Flow Hydrographs1, Water Resour. Bull., 18, 823–829, https://doi.org/10.1111/j.1752-1688.1982.tb00078.x, 1982.
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Landscape evolution models are driven by climate or precipitation data. We show that higher-resolution data lead to greater basin sediment yields (> 100 % increase) despite minimal changes in hydrological outputs. Spatially, simulations over 1000 years show finer-resolution data lead to a systematic bias of more erosion in headwater streams with more deposition in valley floors. This could have important implications for the long-term predictions of past and present landscape evolution models.
Landscape evolution models are driven by climate or precipitation data. We show that...
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