Articles | Volume 11, issue 4
https://doi.org/10.5194/esurf-11-695-2023
https://doi.org/10.5194/esurf-11-695-2023
Research article
 | 
28 Jul 2023
Research article |  | 28 Jul 2023

Testing the sensitivity of the CAESAR-Lisflood landscape evolution model to grid cell size

Christopher J. Skinner and Thomas J. Coulthard

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Cited articles

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. and Kirkby, M.: A physically based, variable contributing area model of basin hydrology/Un modèèle à base physique de zone d'appel variable de l'hydrologie du bassin versant, Hydrolog. Sci. J., 24, 37–41 https://doi.org/10.1080/02626667909491834, 1979. 
Campolongo, F., Cariboni, J., and Saltelli, A.: An effective screening design for sensitivity analysis of large models, Environ. Model. Softw., 22, 1509–1518, https://doi.org/10.1016/j.envsoft.2006.10.004, 2007. 
Claessens, L., Heuvelink, G. B. M., Schoorl, J. M., and Veldkamp, A.: DEM resolution effects on shallow landslide hazard and soil redistribution modelling, Earth Surf. Proc. Land., 30, 461–477, https://doi.org/10.1002/esp.1155, 2005. 
Coulthard, T. J.: CAESAR-Lisflood 1.9b SOURCE.zip, CAESAR-Lisflood Files, SourceForge, https://sourceforge.net/projects/caesar-lisflood/files/CAESAR-lisflood 1.9b SOURCE.zip/download (last access: 24 July 2023), 2016. 
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Short summary
Landscape evolution models allow us to simulate the way the Earth's surface is shaped and help us to understand relevant processes, in turn helping us to manage landscapes better. The models typically represent the land surface using a grid of square cells of equal size, averaging heights in those squares. This study shows that the size chosen by the modeller for these grid cells is important, with larger sizes making sediment output events larger but less frequent.
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