Articles | Volume 8, issue 2
Research article
02 Jun 2020
Research article |  | 02 Jun 2020

Computing water flow through complex landscapes – Part 2: Finding hierarchies in depressions and morphological segmentations

Richard Barnes, Kerry L. Callaghan, and Andrew D. Wickert

Related authors

Computing water flow through complex landscapes – Part 3: Fill–Spill–Merge: flow routing in depression hierarchies
Richard Barnes, Kerry L. Callaghan, and Andrew D. Wickert
Earth Surf. Dynam., 9, 105–121,,, 2021
Short summary

Related subject area

Physical: Landscape Evolution: modelling and field studies
Flexural isostatic response of continental-scale deltas to climatically driven sea level changes
Sara Polanco, Mike Blum, Tristan Salles, Bruce C. Frederick, Rebecca Farrington, Xuesong Ding, Ben Mather, Claire Mallard, and Louis Moresi
Earth Surf. Dynam., 12, 301–320,,, 2024
Short summary
Scaling between volume and runout of rock avalanches explained by a modified Voellmy rheology
Stefan Hergarten
Earth Surf. Dynam., 12, 219–229,,, 2024
Short summary
Past anthropogenic land use change caused a regime shift of the fluvial response to Holocene climate change in the Chinese Loess Plateau
Hao Chen, Xianyan Wang, Yanyan Yu, Huayu Lu, and Ronald Van Balen
Earth Surf. Dynam., 12, 163–180,,, 2024
Short summary
Steady-state forms of channel profiles shaped by debris flow and fluvial processes
Luke A. McGuire, Scott W. McCoy, Odin Marc, William Struble, and Katherine R. Barnhart
Earth Surf. Dynam., 11, 1117–1143,,, 2023
Short summary
Refining patterns of melt with forward stratigraphic models of stable Pleistocene coastlines
Patrick Boyden, Paolo Stocchi, and Alessio Rovere
Earth Surf. Dynam., 11, 917–931,,, 2023
Short summary

Cited articles

Akiba, T.: Software: Radix-Heap, Commit f54eba0a19782c67a9779c28263a7ce680995eda, available at: (last access: 20 May 2020), 2015. a, b
Arnold, N.: A new approach for dealing with depressions in digital elevation models when calculating flow accumulation values, Prog. Phys. Geog., 34, 781–809,, 2010. a, b
Barnes, R.: Parallel Priority-Flood Depression Filling For Trillion Cell Digital Elevation Models On Desktops Or Clusters, Comput. Geosci., 96, 56–68,, 2016a. a
Barnes, R.: RichDEM: Terrain Analysis Software, Zenodo,, 2016b. a
Barnes, R. and Callaghan, K.: Depression Hierarchy Source Code, Zenodo,, 2019. a, b, c
Short summary
Maps of elevation are used to help predict the flow of water so we can better understand landslides, floods, and global climate change. However, modeling the flow of water is difficult when elevation maps include swamps, lakes, and other depressions. This paper explains a new method that overcomes these difficulties, allowing models to run faster and more accurately.