Articles | Volume 5, issue 3
Earth Surf. Dynam., 5, 369–385, 2017
Earth Surf. Dynam., 5, 369–385, 2017

Research article 10 Jul 2017

Research article | 10 Jul 2017

Geomorphometric delineation of floodplains and terraces from objectively defined topographic thresholds

Fiona J. Clubb et al.

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Cited articles

Avouac, J. P. and Peltzer, G.: Active tectonics in southern Xinjiang, China: Analysis of terrace riser and normal fault scarp degradation along the Hotan-Qira Fault System, J. Geophys. Res.-Sol. Ea., 98, 21773–21807,, 1993.
Belmont, P.: Floodplain width adjustments in response to rapid base level fall and knickpoint migration, Geomorphology, 128, 92–102,, 2011.
Belmont, P., Gran, K., Jennings, C. E., Wittkop, C., and Day, S. S.: Holocene landscape evolution and erosional processes in the Le Sueur River, central Minnesota, Field Guides, 24, 439–455,, 2011a.
Belmont, P., Gran, K. B., Schottler, S. P., Wilcock, P. R., Day, S. S., Jennings, C., Lauer, J. W., Viparelli, E., Willenbring, J. K., Engstrom, D. R., and Parker, G.: Large Shift in Source of Fine Sediment in the Upper Mississippi River, Environ. Sci. Technol., 45, 8804–8810,, 2011b.
Beven, K.: Prophecy, reality and uncertainty in distributed hydrological modelling, Adv. Water Resour., 16, 41–51,, 1993.
Short summary
Floodplains and fluvial terraces can provide information about current and past river systems, helping to reveal how channels respond to changes in both climate and tectonics. We present a new method of identifying these features objectively from digital elevation models by analysing their slope and elevation compared to the modern river. We test our method in eight field sites, and find that it provides rapid and reliable extraction of floodplains and terraces across a range of landscapes.