Articles | Volume 7, issue 3
Research article
20 Sep 2019
Research article |  | 20 Sep 2019

River channel width controls blocking by slow-moving landslides in California's Franciscan mélange

Noah J. Finnegan, Kiara N. Broudy, Alexander L. Nereson, Joshua J. Roering, Alexander L. Handwerger, and Georgina Bennett

Related authors

Augmentation of WRF-Hydro to simulate overland-flow- and streamflow-generated debris flow susceptibility in burn scars
Chuxuan Li, Alexander L. Handwerger, Jiali Wang, Wei Yu, Xiang Li, Noah J. Finnegan, Yingying Xie, Giuseppe Buscarnera, and Daniel E. Horton
Nat. Hazards Earth Syst. Sci., 22, 2317–2345,,, 2022
Short summary

Related subject area

Physical: Geomorphology (including all aspects of fluvial, coastal, aeolian, hillslope and glacial geomorphology)
Phenomenological model of suspended sediment transport in a small catchment
Amande Roque-Bernard, Antoine Lucas, Eric Gayer, Pascal Allemand, Céline Dessert, and Eric Lajeunesse
Earth Surf. Dynam., 11, 363–381,,, 2023
Short summary
Water level fluctuations drive bank instability in a hypertidal estuary
Andrea Gasparotto, Stephen E. Darby, Julian Leyland, and Paul A. Carling
Earth Surf. Dynam., 11, 343–361,,, 2023
Short summary
The story of a summit nucleus: hillslope boulders and their effect on erosional patterns and landscape morphology in the Chilean Coastal Cordillera
Emma Lodes, Dirk Scherler, Renee van Dongen, and Hella Wittmann
Earth Surf. Dynam., 11, 305–324,,, 2023
Short summary
Pristine levels of suspended sediment in large German river channels during the Anthropocene?
Thomas O. Hoffmann, Yannik Baulig, Stefan Vollmer, Jan H. Blöthe, Karl Auerswald, and Peter Fiener
Earth Surf. Dynam., 11, 287–303,,, 2023
Short summary
An Arctic delta reduced-complexity model and its reproduction of key geomorphological structures
Ngai-Ham Chan, Moritz Langer, Bennet Juhls, Tabea Rettelbach, Paul Overduin, Kimberly Huppert, and Jean Braun
Earth Surf. Dynam., 11, 259–285,,, 2023
Short summary

Cited articles

Baum, R. L., Savage, W. Z., and Wasowski, J.: Mechanics of Earthflows, in: Proceedings of the International Conference FLOWS, Sorrento, 11–13 May 2003, Italy, 2003. 
Bennett, G. L., Roering, J. J., Mackey, B. H., Handwerger, A. L., Schmidt, D. A., and Guillod, B. P.: Historic drought puts the brakes on earthflows in Northern California, Geophys. Res. Lett., 43, 5725–5731,, 2016a. 
Bennett, G. L., Miller, S. R., Roering, J. J., and Schmidt, D. A.: Landslides, threshold slopes, and the survival of relict terrain in the wake of the Mendocino Triple Junction, Geology, 44, 363–366,, 2016b. 
Booth, A. M., Hurley, R., Lamb, M. P., and Andrade, J. E.: Force chains as the link between particle and bulk friction angles in granular material, Geophys. Res. Lett., 41, 8862–8869,, 2014. 
Brummer, C. J. and Montgomery, D. R.: Influence of coarse lag formation on the mechanics of sediment pulse dispersion in a mountain stream, Squire Creek, North Cascades, Washington, United States, Water Resour. Res., 42, W07412,, 2006. 
Short summary
In some settings, landslides trigger valley blockages that impound huge volumes of sediment, often drastically changing river habitat and habitability. In other settings, landslides appear to have little effect on rivers. In this study, we explore what governs the different sensitivity of rivers to blocking from landslide debris. We accomplish this by comparing two sites in California with dramatic differences in blocking from otherwise similar slow-moving landslides.