Spatial and temporal variability of primary production in the north-west African upwelling : a modelling approach [résumé] - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2019

Spatial and temporal variability of primary production in the north-west African upwelling : a modelling approach [résumé]

Résumé

An analysis based on a multi-decadal physical–biogeochemical hindcast simulation (1980-2009) was conducted to characterize the drivers of the spatial distribution of phytoplankton biomass and production in the north-west (NW) African upwelling system. To that end, a comparative box analysis representing homogeneous sub-regions in the NW African upwelling system has been conducted. The sub-regions have been defined using the near-surface horizontal circulation patterns. In each box, we analysed the dynamics of primary productivity and nutrients with regard to advective and diffusive matter fluxes at the boundaries and local biological production and/or uptake. The nature and variability of the matter exported from the coastal margin to the adjacent open ocean were also subsequently depicted. This variability of the primary production may impact the distribution and abundance of fish populations, and their associated fisheries, on a large range of timescales.
Fichier non déposé

Dates et versions

hal-02778768 , version 1 (04-06-2020)

Identifiants

Citer

Pierre-Amaël Auger, Thomas Gorgues, Éric Machu, Timothée Brochier, Patrice Brehmer, et al.. Spatial and temporal variability of primary production in the north-west African upwelling : a modelling approach [résumé]. ICAWA : International Conference AWA, Apr 2018, Lanzarote, Spain. pp.120. ⟨hal-02778768⟩
115 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More