Articles | Volume 11, issue 6
Research article
01 Nov 2023
Research article |  | 01 Nov 2023

Marsh-induced backwater: the influence of non-fluvial sedimentation on a delta's channel morphology and kinematics

Kelly M. Sanks, John B. Shaw, Samuel M. Zapp, José Silvestre, Ripul Dutt, and Kyle M. Straub

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Cited articles

Aslan, A., Autin, W. J., and Blum, M. D.: Causes of River Avulsion: Insights from the Late Holocene Avulsion History of the Mississippi River, U.S.A., J. Sediment. Res., 75, 650–664,, 2005. a
Barefoot, E. A., Nittrouer, J. A., and Straub, K. M.: Non-Monotonic Floodplain Responses to Changes in Flooding Intensity, J. Geophys. Res.-Earth, 126, e2021JF006310,, 2021. a
Beltrán-Burgos, M., Esposito, C. R., Nepf, H. M., Baustian, M. M., and Di Leonardo, D. R.: Vegetation-Driven Seasonal Sediment Dynamics in a Freshwater Marsh of the Mississippi River Delta, J. Geophys. Res.-Biogeo., 128, e2022JG007143,, 2023. a
Bhattacharya, J. P.: Delta: Facies Models Revisited, Soc. Sediment. Geol., 84, 237–292, 2006. a
Brooke, S., Chadwick, A. J., Silvestre, J., Lamb, M. P., Edmonds, D. A., and Ganti, V.: Where rivers jump course, Science, 376, 987–990,, 2022. a
Short summary
River deltas encompass many depositional environments (like channels and wetlands) that interact to produce coastal environments that change through time. The processes leading to sedimentation in wetlands are often neglected from physical delta models. We show that wetland sedimentation constrains flow to the channels, changes sedimentation rates, and produces channels more akin to field-scale deltas. These results have implications for the management of these vulnerable coastal landscapes.