Articles | Volume 8, issue 4
Earth Surf. Dynam., 8, 1039–1051, 2020
Earth Surf. Dynam., 8, 1039–1051, 2020

Short communication 09 Dec 2020

Short communication | 09 Dec 2020

Short communication: Multiscalar roughness length decomposition in fluvial systems using a transform-roughness correlation (TRC) approach

David L. Adams and Andrea Zampiron

Related subject area

Physical: Geomorphology (including all aspects of fluvial, coastal, aeolian, hillslope and glacial geomorphology)
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Earth Surf. Dynam., 8, 1067–1099,,, 2020
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GERALDINE (Google Earth Engine supRaglAciaL Debris INput dEtector): a new tool for identifying and monitoring supraglacial landslide inputs
William D. Smith, Stuart A. Dunning, Stephen Brough, Neil Ross, and Jon Telling
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Evolution of events before and after the 17 June 2017 rock avalanche at Karrat Fjord, West Greenland – a multidisciplinary approach to detecting and locating unstable rock slopes in a remote Arctic area
Kristian Svennevig, Trine Dahl-Jensen, Marie Keiding, John Peter Merryman Boncori, Tine B. Larsen, Sara Salehi, Anne Munck Solgaard, and Peter H. Voss
Earth Surf. Dynam., 8, 1021–1038,,, 2020
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Complementing scale experiments of rivers and estuaries with numerically modelled hydrodynamics
Steven A. H. Weisscher, Marcio Boechat-Albernaz, Jasper R. F. W. Leuven, Wout M. Van Dijk, Yasuyuki Shimizu, and Maarten G. Kleinhans
Earth Surf. Dynam., 8, 955–972,,, 2020
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Characterization of morphological units in a small, forested stream using close-range remotely piloted aircraft imagery
Carina Helm, Marwan A. Hassan, and David Reid
Earth Surf. Dynam., 8, 913–929,,, 2020
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Cited articles

Adams, D. L.: Toward bed state morphodynamics in gravel-bed rivers, Prog. Phys. Geogr. Earth Environ., 44, 700–726, 2020a. a, b, c
Adams, D. L.: adamsdl/trc (Version v1.3), Zenodo,, 2020b. a
Addison, P. S.: Introduction to redundancy rules: the continuous wavelet transform comes of age, Philosophical Transactions of the Royal Society A: Mathematical, Phys. Eng. Sci., 376, 1–15, 2018. a
Ancey, C.: Bedload transport: a walk between randomness and determinism. Part 2. Challenges and prospects, J. Hydraul. Res., 58, 18–33, 2020. a, b
Ashworth, P. J. and Ferguson, R. I.: Size-selective entrainment of bed-load in gravel bed streams, Water Resour. Res., 25, 627–634, 1989. a
Short summary
This paper presents a novel method of estimating the relative contribution of different physical scales of river bed topography to the total roughness length, based on thalweg elevation profiles. By providing more detailed information regarding the interaction between surface topography and fluid dynamics, the proposed technique may contribute to advances in hydraulics, channel morphodynamics, and bedload transport. Also, it may provide alternatives to existing representative roughness metrics.