#5900. Understanding the circulation in the deep, micro-tidal and strongly stratified Congo River estuary

July 2026publication date
Proposal available till 03-06-2025
4 total number of authors per manuscript0 $

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Journal’s subject area:
Oceanography;
Computer Science (miscellaneous);
Geotechnical Engineering and Engineering Geology;
Atmospheric Science;
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Abstract:
The Congo River estuary is characterised by a deep canyon that connects the river to the deep ocean by cutting through the continental shelf. Its estuary is influenced by high river discharge and micro-tidal conditions, with a large depth and limited vertical mixing. This restricts the supply of oxygen from the surface waters to the more saline bottom waters, leading to hypoxic and anoxic zones. We study the dynamics of the Congo River estuary by applying the multi-scale baroclinic coastal ocean model SLIM 3D (www.slim-ocean.be) to this topographically challenging environment. By allowing a high degree of flexibility in the representation of both the complex geometry and the strong stratification, SLIM 3D is able to simulate riverine, tidal and gravitational processes that drive the estuarine circulation.
Keywords:
Congo river-to-ocean continuum; Estuarine classification; Renewing water age; Unstructured-mesh coastal ocean model

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