Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 10, issue 5
Articles | Volume 10, issue 5
https://doi.org/10.5194/esurf-10-865-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-10-865-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 10, issue 5
Short communication
 | 
06 Sep 2022
Short communication |  | 06 Sep 2022

Short communication: A tool for determining multiscale bedform characteristics from bed elevation data

Judith Y. Zomer, Suleyman Naqshband, and Antonius J. F. Hoitink

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Coexistence of two dune scales in a lowland river
Judith Y. Zomer, Bart Vermeulen, and Antonius J. F. Hoitink
Earth Surf. Dynam., 11, 1283–1298, https://doi.org/10.5194/esurf-11-1283-2023,https://doi.org/10.5194/esurf-11-1283-2023, 2023
Short summary

Cited articles

Abraham, D., Kuhnle, R. A., and Odgaard, A. J.: Validation of bed-load transport measurements with time-sequenced bathymetric data, J. Hydraul. Eng., 137, 723–728, 2011. a
Ashley, G. M.: Classification of large-scale subaqueous bedforms; a new look at an old problem, J. Sediment. Res., 60, 160–172, 1990. a
Best, J. and Kostaschuk, R.: An experimental study of turbulent flow over a low-angle dune, J. Geophys. Res.-Oceans, 107, 3135, https://doi.org/10.1029/2000JC000294, 2002. a
Bradley, R., Venditti, J., Kostaschuk, R., Church, M., Hendershot, M., and Allison, M. A.: Flow and sediment suspension events over low-angle dunes: Fraser Estuary, Canada, J. Geophys. Res.-Earth Surf., 118, 1693–1709, 2013. a, b, c
Bradley, R. W. and Venditti, J. G.: Reevaluating dune scaling relations, Earth Sci. Rev., 165, 356–376, 2017. a
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Short summary
Riverbeds are often composed of different scales of dunes, whose sizes and shapes are highly variable over time and space. Characterization of these dunes is important in many research studies focused on fluvial processes. A tool is presented here that aims to identify different scales of dunes from riverbed elevation maps. A first step is to separate two scales of bedforms without smoothing steep slopes of the larger dunes. In a second step, dunes are identified and properties are computed.
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