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.

Data sets

Wind data DHI metocean data portal https://www.metocean-on-demand.com/#/main

2008 bathymetry data Mekong River Commission (MRC) data portal https://portal.mrcmekong.org/data-catalogue

Vietnamese Mekong Delta Principle Channel Bed Elevations for 2018 G. Vasilopoulos, D. R. Parsons, and Q. Le Quan https://hydra.hull.ac.uk/resources/hull:17952

Video abstract

Dynamics of salt intrusion in the Mekong Delta Lisanne Braat and Sepehr Eslami https://doi.org/10.5446/53547

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Short summary
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.