Articles | Volume 11, issue 3
Research article
09 May 2023
Research article |  | 09 May 2023

Impacts of human modifications on material transport in deltas

Jayaram Hariharan, Kyle Wright, Andrew Moodie, Nelson Tull, and Paola Passalacqua

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Cited articles

Al Masud, M. M., Gain, A. K., and Azad, A. K.: Tidal river management for sustainable agriculture in the Ganges-Brahmaputra delta: Implication for land use policy, Land Use Policy, 92, 104443,, 2020. a
Angamuthu, B., Darby, S. E., and Nicholls, R. J.: Impacts of natural and human drivers on the multi-decadal morphological evolution of tidally-influenced deltas, P. Roy. Soc. A-Math. Phy., 474, 20180396,, 2018. a, b
Anthony, E. J.: Wave influence in the construction, shaping and destruction of river deltas: A review, Mar. Geol., 361, 53–78,, 2015. a, b
Auerbach, L. W., Goodbred Jr., S. L., Mondal, D. R., Wilson, C. A., Ahmed, K. R., Roy, K., Steckler, M. S., Small, C., Gilligan, J. M., and Ackerly, B. A.: Flood risk of natural and embanked landscapes on the Ganges–Brahmaputra tidal delta plain, Nat. Clim. Change, 5, 153–157,, 2015. a, b
Bain, R. L., Hale, R. P., and Goodbred, S. L.: Flow Reorganization in an Anthropogenically Modified Tidal Channel Network: An Example From the Southwestern Ganges-Brahmaputra-Meghna Delta, J. Geophys. Res.-Earth, 124, 2141–2159,, 2019. a, b
Short summary
We simulate the transport of material through numerically simulated river deltas under natural and human-modified (embankment construction and channel dredging) scenarios to understand their impacts on material transport. Human modifications reduce the total area visited by passive particles and alter the amount of time spent within the delta relative to natural conditions. This work can help us understand how future construction may impact land building or ecosystem restoration projects.