Pierre Brasseur

Externally-forced and intrinsic variability of the Mediterranean surface and overturning circulations

Damien Héron, Thierry Penduff, Jean‐Michel Brankart, Pierre Brasseur et autres

Abstract. Part of Mediterranean Sea variability is forced and paced by external drivers (e.g. atmosphere, river runoffs, Atlantic inflow); the other part has a random phase and spontaneously emerges due to chaotic intrinsic variability (CIV). This study quantifies across time scales the …

fr (code pays fourni par la source)

Masculinités et santé : pourquoi les hommes consultent moins malgré leur surmortalité

Pierre Brasseur

be (code pays fourni par la source)

Three-stream modelling of radiative transfer for the simulation of Black Sea biogeochemistry in a NEMO framework

Loïc Macé, Luc Vandenbulcke, Jean‐Michel Brankart, Jean-François Grailet et autres

Abstract. In this paper, we propose a three-stream ocean radiative transfer (RT) module as an extension of the NEMO ocean modelling framework. This module solves the subsurface irradiance field in 1D water columns, discriminating between two downward streams, direct and scattered, and …

be, fr, pl (code pays fourni par la source)

Characterisation of uncertainties in an ocean radiative transfer model for the Black Sea through ensemble simulations

Loïc Macé, Luc Vandenbulcke, Jean‐Michel Brankart, Pierre Brasseur

In this paper, we investigate the influence of uncertainties in inherent optical properties on the modelling of radiometric quantities by an ocean radiative transfer (RT) model, particularly irradiance and reflectance. The radiative transfer model is coupled to a 3D physical–biogeochemical model of …

be, fr, Maroc (code pays fourni par la source)

Link Between Stochastic Grid Perturbation and Location Uncertainty Framework

Simon Clément, Éric Blayo, Laurent Debreu, Jean‐Michel Brankart et autres

Abstract This paper investigates the relationship between a Stochastic Grid Perturbation (SGP) and Location Uncertainty (LU) in the context of ocean modeling. The LU formulation, which introduces random velocity fluctuations, has shown efficacy in organizing large‐scale flow and replicating long‐term statistical characteristics. …

fr (code pays fourni par la source)

Probabilistic modeling of the Southwest Indian Ocean dynamics to quantify uncertainties in surface currents

Lisa Weiss, Jean‐Michel Brankart, Quentin Jamet, Pierre Brasseur

The Southwest Indian Ocean (SWIO) is characterized by diverse dynamic regimes, with intense energy fluxes and intricate atmospheric interactions (Phillips et al., 2021). The Mascarene area, to the east of Madagascar, is influenced by the South Equatorial Current and the Indian subtropical …

fr (code pays fourni par la source)

SWIO 30*30: A social-ecological approach to identify marine priority areas for conservation under the Kunming-Montreal Global Biodiversity Framework in the South West Indian Ocean region.

Hugo Deléglise, Ignacio Palomo, Pierre Brasseur

The SWIO 30*30 project is a social-ecological initiative focused on identifying priority marine conservation areas across the South West Indian Ocean (SWIO) region to meet the Kunming-Montreal Global Biodiversity Framework goal of protecting 30% of terrestrial and marine areas by 2030. SWIO …

fr (code pays fourni par la source)

A stochastic framework for modeling surface ocean variability in the Southwest Indian Ocean

Lisa Weiss, Jean‐Michel Brankart, Quentin Jamet, Pierre Brasseur

The Southwest Indian Ocean (SWIO) is characterized by diverse dynamic regimes, with intense energy fluxes and intricate atmospheric interactions (Phillips et al., 2021, OS). The Mascarene area, to the east of Madagascar, is influenced by the South Equatorial Current and the Indian …

fr (code pays fourni par la source)

Forced and Intrinsic Low-Frequency Variability in the Mediterranean Sea from a Multi-Decadal Ensemble Simulation

Damien Héron, Jean‐Michel Brankart, Pierre Brasseur

This study investigates the low-frequency variability of the Mediterranean Sea using an ensemble of 30 eddy-permitting (1/12°) NEMO-based regional ocean simulations. The ensemble members were slightly perturbed in their initial conditions and forced by the same atmospheric variability during 34 years, allowing …

fr (code pays fourni par la source)

Control of simulated ocean ecosystem indicators by biogeochemical observations.

Stefano Ciavatta, Paolo Lazzari, Eva Rodriguez Alvarez, Laurent Bertino et autres

To protect marine ecosystems threatened by climate change and anthropic stressors, it is essential to operationally monitor ocean health indicators. These are metrics synthetizing multiple marine processes relevant to the users of operational services. Here we assess if selected ocean indicators simulated …

fr, it, no, dk, be, de, gb (code pays fourni par la source)

Sensitivity-driven simplification of complex ecosystem models: Integrating mechanistic insights for cost reduction and predictive accuracy

Yutong Zhang, Mélika Baklouti, Pierre Brasseur

With the major challenges posed by climate change and significant shifts in Earth systems, the need for high-precision and diverse climate predictions has grown. These predictions aim to explore a variety of scenarios, such as the Shared Socioeconomic Pathways (SSPs). Advances in …

fr (code pays fourni par la source)

Characterisation of uncertainties in an ocean radiative transfer model for the Black Sea through ensemble simulations

Loïc Macé, Luc Vandenbulcke, Jean‐Michel Brankart, Pierre Brasseur

Abstract. In this paper, we investigate the influence of uncertainties in inherent optical properties on the modelling of radiometric quantities by an ocean radiative transfer model, in particular irradiance and reflectance. The radiative transfer model is coupled to a three-dimensional physical-biogeochemical model …

fr, be (code pays fourni par la source)