Articles | Volume 9, issue 4
Earth Surf. Dynam., 9, 953–976, 2021
https://doi.org/10.5194/esurf-9-953-2021
Earth Surf. Dynam., 9, 953–976, 2021
https://doi.org/10.5194/esurf-9-953-2021

Research article 12 Aug 2021

Research article | 12 Aug 2021

Dynamics of salt intrusion in the Mekong Delta: results of field observations and integrated coastal–inland modelling

Sepehr Eslami et al.

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Cited articles

Abood, K. A.: Circulation in the Hudson estuary, edited by: O. A. Roels, Hudson River Colloquium, 250, 38–111, 1974. 
Banas, N. S., Hickey, B. M., MacCready, P., and Newton, J. A.: Dynamics of Willapa Bay, Washington: A Highly Unsteady, Partially Mixed Estuary, J. Phys. Oceanogr., 34, 2413–2427, https://doi.org/10.1175/JPO2637.1, 2004. 
Brunier, G., Anthony, E. J., Goichot, M., Provansal, M., and Dussouillez, P.: Recent morphological changes in the Mekong and Bassac river channels, Mekong delta: The marked impact of river-bed mining and implications for delta destabilisation, Geomorphology, 224, 177–191, https://doi.org/10.1016/j.geomorph.2014.07.009, 2014. 
Burchard, H. and Hetland, R. D.: Quantifying the Contributions of Tidal Straining and Gravitational Circulation to Residual Circulation in Periodically Stratified Tidal Estuaries, J. Phys. Oceanogr., 40, 1243–1262, https://doi.org/10.1175/2010JPO4270.1, 2010. 
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Increased salt intrusion jeopardizes freshwater supply to the Mekong Delta, and the current trends are often inaccurately associated with sea level rise. Using observations and models, we show that salinity is highly sensitive to ocean surge, tides, water demand, and upstream discharge. We show that anthropogenic riverbed incision has significantly amplified salt intrusion, exemplifying the importance of preserving sediment budget and riverbed levels to protect deltas against salt intrusion.