Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
HESS
Articles | Volume 29, issue 5
Articles | Volume 29, issue 5
https://doi.org/10.5194/hess-29-1469-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-29-1469-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 29, issue 5
Research article
 | 
18 Mar 2025
Research article |  | 18 Mar 2025

Effects of boundary conditions and aquifer parameters on salinity distribution and mixing-controlled reactions in high-energy beach aquifers

Rena Meyer, Janek Greskowiak, Stephan L. Seibert, Vincent E. Post, and Gudrun Massmann

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Cited articles

Abarca, E., Carrera, J., Sánchez-Vila, X., and Dentz, M.: Anisotropic dispersive Henry problem, Adv. Water Resour., 30, 913–926, https://doi.org/10.1016/j.advwatres.2006.08.005, 2007. 
Abarca, E., Karam, H., Hemond, H. F., and Harvey, C. F.: Transient groundwater dynamics in a coastal aquifer: The effects of tides, the lunar cycle, and the beach profile, Water Resour. Res., 49, 2473–2488, https://doi.org/10.1002/wrcr.20075, 2013. 
Anschutz, P., Smith, T., Mouret, A., Deborde, J., Bujan, S., Poirier, D., and Lecroart, P.: Tidal sands as biogeochemical reactors, Estuar. Coast. Shelf S., 84, 84–90, https://doi.org/10.1016/j.ecss.2009.06.015, 2009. 
Anwar, N., Robinson, C., and Barry, D. A.: Influence of tides and waves on the fate of nutrients in a nearshore aquifer: Numerical simulations, Adv. Water Resour., 73, 203–213, https://doi.org/10.1016/j.advwatres.2014.08.015, 2014. 
Bakker, M., Post, V., Langevin, C. D., Hughes, J. D., White, J. T., Starn, J. J., and Fienen, M. N.: Scripting MODFLOW Model Development Using Python and FloPy, Groundwater, 54, 733–739, https://doi.org/10.1111/gwat.12413, 2016. 
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The subsurface of sandy beaches under high-energy conditions where tides, waves, and storms constantly reshape the beach surface is globally common and relevant for the alteration of solute fluxes across the land–sea continuum. Our generic modelling study highlights the relevance of dynamic boundary conditions paired with aquifer properties for groundwater flow, salt transport, and mixing reactions in coastal aquifers that are exposed to strong natural forces.
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