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Assessing Seasonal Flow Dynamics At A Lagoon Saltwater–Freshwater Interface Using A Dual Tracer Approach, S. Müller, S. Jessen, C. Duque, É. Sebök, Bethany T. Neilson, P. Engesgaard

Civil and Environmental Engineering Faculty Publications

Study region: Eastern shore of Ringkøbing Fjord, a coastal lagoon at the west coast of Denmark

Study focus: A dual tracer approach based on salinity and δ¹⁸O is used to assess seasonal dynamics at the saltwater-freshwater interface of a coastal lagoon. At the site, salinity is prone to vary on a sub-seasonal or daily frequency due to riverine freshwater inputs to the lagoon. In contrast, δ¹⁸O compositions of end-members only vary seasonally.

New hydrological insights: The dual tracer approach shows to be valuable in coastal settings where end-member concentrations vary substantially over the seasons and hence, …