Reference : Reconnaissance of the main Black Sea's ecohydrodynamics by means of a 3D interdiscipl...
Scientific journals : Article
Life sciences : Aquatic sciences & oceanology
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
Reconnaissance of the main Black Sea's ecohydrodynamics by means of a 3D interdisciplinary model
Grégoire, Marilaure mailto [Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Océanologie >]
Beckers, Jean-Marie mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > GeoHydrodynamics and Environment Research (GHER) >]
Nihoul, Jacques mailto [Université de Liège - ULiège > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences) >]
Stanev, Emil [University of Sofia > Department of Meteorology and Geophysics >]
Journal of Marine Systems
Elsevier Science
Yes (verified by ORBi)
The Netherlands
[en] Black Sea ; mathematical models ; ecohydrodynamics
[en] A 3D interdisciplinary model has been used to test the sensitivity of the Black Sea’s ecosystem to physical processes. The hydrodynamical model of the general circulation has been built up, using the GHER primitive equation model. A model with 15 km horizontal resolution and 25 vertical levels is used to compute the typical seasonal cycle. The model is forced by climatological monthly mean fields of temperature, salinity and wind stress at the air–sea interface; the river discharges of the Danube, Dnestr and Dnepr are taken into account. An ecosystem model at basin scale is then defined by a nitrogen cycle considering several phytoplankton and zooplankton sizes and including the microbial loop. The ecosystem model is
embedded on-line into the 3D hydrodynamical model with a superimposed cycle for the light intensity. This model must be regarded rather as a first tool for testing the coupling of hydrodynamic and ecosystem submodels, while acquiring some preparatory assessment of the effect of physical processes on the ecodynamics. The results display a highly three-dimensional
aspect with important horizontal and vertical variations, obviously imparted to the system by the physical processes horizontal and vertical advection, vertical mixing and diffusion, upwelling associated with light limitation at depth and sinking of dead organisms. In this paper, the results are described emphasizing the effects of the hydrodynamic constraints on the space–time distribution of the primary and secondary production.
Centre Interfacultaire de Recherches en Océanologie - MARE
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