Modelling the saltwater intrusion throughout the Holocene

Joost Delsman of Deltares, with contributions from our group, modelled the Holocene development of the fresh-salt groundwater distribution along a coastal transect in the Netherlands.

To be able to understand and assess the current fresh-salt groundwater distribution and groundwater velocities one needs to go back a long time; this because of the large intertia of the system. Accurate predictions of the current  fresh-salt groundwater distribution is essential for meaningful projections of salt water intrusion under scenarios of future sea-level change, climate change and groundwater abstractions.

The reconstructed groundwater heads, chloride concentrations and groundwater origin matches very well with observations.

A movie showing the Holocene development can be found here!

The paper:

J.R. Delsman, K.R.M. Hu-a-ng, P.C. Vos, P.G.B. de Louw, G.H.P. Oude Essink, P.J. Stuyfzand, and M.F.P. Bierkens, 2014.Paleo-modeling of coastal saltwater intrusion during the Holocene: an application to the Netherlands. Hydrology and Earth System Science 18, 3891-3905.