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April 24, 2026Ocean scienceOpen Access

Physical and biological processes driving seasonal variability of Nitrate budget and biological productivity in the Gabon-Congo upwelling system

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Authors

LELandry Junior Mbang EssomeGAGaël AloryCDCasimir Yelognissé Da-Allada

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Overview

Analysis investigates nitrate budget variability in Gabon-Congo upwelling system, suggesting impacts on marine ecosystems.

Key Points

  • Investigate the seasonal variability of the nitrate budget and biological productivity in the Gabon-Congo upwelling system.
  • Utilized a high-resolution coupled physical-biogeochemical simulation with the NEMO-PISCES model.
  • Analyzed contributions of physical and biological processes affecting nitrate concentrations.
  • Examined seasonal cycles of nitrate and chlorophyll a concentrations.
  • Identified a semi-annual cycle of nitrate with two upwelling and two downwelling periods.
  • Demonstrated that vertical diffusion and advection are key processes supplying nitrate during upwelling.
  • Found that chlorophyll a concentrations closely follow nitrate availability, driving biological productivity.

Cite This Study

Essome et al. (2026) studied this question.

synapsesocial.com/papers/69eb092b553a5433e34b3b72https://doi.org/10.5194/os-22-1279-2026
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Physical and biological processes driving seasonal variability of Nitrate budget and biological productivity in the Gabon-Congo upwelling system2026
  2. 2A coupled physical-biogeochemical modeling approach to investigate the dynamics of the Benguela Upwelling System2025 · 1 citations
  3. 3Understanding the impacts of coastal deoxygenation in nitrogen dynamics: an observational analysis2024 · 2 citations
  4. 4Unveiling Profound Seasonal and Spatial Dynamics of Greenhouse Gases (CO2, CH4, N2O) in the Northern Benguela Upwelling System Unnamed Article2024
  5. 5Downwelling persistence modifies nitrogen sources available for benthic food webs2026