Articles | Volume 7, issue 4
Earth Surf. Dynam., 7, 911–927, 2019
https://doi.org/10.5194/esurf-7-911-2019
Earth Surf. Dynam., 7, 911–927, 2019
https://doi.org/10.5194/esurf-7-911-2019

Research article 01 Oct 2019

Research article | 01 Oct 2019

How does the downstream boundary affect avulsion dynamics in a laboratory bifurcation?

Gerard Salter et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Gerard Salter on behalf of the Authors (09 Aug 2019)  Author's response    Manuscript
ED: Publish as is (27 Aug 2019) by Paola Passalacqua
ED: Publish as is (04 Sep 2019) by Niels Hovius(Editor)
AR by Gerard Salter on behalf of the Authors (05 Sep 2019)  Author's response    Manuscript
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Short summary
Bifurcations are the switches that steer water and sediment in delta and multithread river networks, playing an important role in shaping the landscape. In lab experiments, we found that when the downstream branches grow through time, frequent switching in the water and sediment partitioning occurs. In contrast, once sediment freely exits the downstream boundary, long periods of time when one branch dominates occur; however, unlike our theoretical prediction, these are not permanent.