Articles | Volume 5, issue 1
https://doi.org/10.5194/esurf-5-47-2017
https://doi.org/10.5194/esurf-5-47-2017
Research article
 | 
18 Jan 2017
Research article |  | 18 Jan 2017

Accurate simulation of transient landscape evolution by eliminating numerical diffusion: the TTLEM 1.0 model

Benjamin Campforts, Wolfgang Schwanghart, and Gerard Govers

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Cited articles

Andrews, D. J. and Bucknam, R. C.: Fitting degradation of shoreline scarps by a nonlinear diffusion model, J. Geophys. Res., 92, 12857, https://doi.org/10.1029/JB092iB12p12857, 1987.
Baynes, E. R. C., Attal, M., Niedermann, S., Kirstein, L. A., Dugmore, A. J., and Naylor, M.: Erosion during extreme flood events dominates Holocene canyon evolution in northeast Iceland, P. Natl. Acad. Sci., 112, 2355–2360, https://doi.org/10.1073/pnas.1415443112, 2015.
Blöthe, J. H., Korup, O., and Schwanghart, W.: Large landslides lie low: Excess topography in the Himalaya-Karakoram ranges, Geology, 43, 523–526, https://doi.org/10.1130/G36527.1, 2015.
Braun, J. and Sambridge, M.: Modelling landscape evolution on geological time scales: A new method based on irregular spatial discretization, Basin Res., 9, 27–52, https://doi.org/10.1046/j.1365-2117.1997.00030.x, 1997.
Braun, J. and Willett, S. D.: A very efficient O(n), implicit and parallel method to solve the stream power equation governing fluvial incision and landscape evolution, Geomorphology, 180–181, 170–179, https://doi.org/10.1016/j.geomorph.2012.10.008, 2013.
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Short summary
Despite a growing interest in landscape evolution models, accuracy assessment of the numerical methods they are based on has received little attention. We test a higher-order flux-limiting finite-volume method to simulate river incision and tectonic displacement. We show that this scheme significantly influences the evolution of simulated landscapes and the spatial and temporal variability of erosion rates. Moreover, it allows for the simulation of lateral tectonic displacement on a fixed grid.