A5055596274- Marine and coastal ecosystems
- Ocean Acidification Effects and Responses
- Atmospheric and Environmental Gas Dynamics
- Microplastics and Plastic Pollution
- Coastal and Marine Management
- Methane Hydrates and Related Phenomena
- Atmospheric Ozone and Climate
Université de Bretagne Occidentale
2022-2024
Laboratory for Ocean Physics and Satellite Remote Sensing
2022-2024
Centre National de la Recherche Scientifique
2022-2024
Institut de Recherche pour le Développement
2022-2024
Laboratoire d’Études en Géophysique et Océanographie Spatiales
2023-2024
Ifremer
2022-2024
Institut Universitaire Européen de la Mer
2022-2023
The fate of plastics entering the 3D ocean circulation from rivers discharge is examined through Lagrangian analysis neutrally buoyant particles. Particles are released continuously over 1991–2010 at surface along coasts according to monthly estimates plastic waste input. They advected by daily currents a state-of-the-art global model 1/12° resolution. At end simulation (year 2010), particles remaining in layer 1 m thickness represent less than 2% total released. These concentrated center...
Abstract The subpolar North Atlantic (SPNA) is a region of high anthropogenic CO 2 (C ant ) storage per unit area. Although the average C distribution well documented in this region, pathways towards ocean interior remain largely unresolved. We used observations from three Argo-O floats spanning 2013-2018 within SPNA, combined with existing neural networks and back-calculations, to determine evolution along float quasi-lagrangian perspective. Our results show that follows stepwise deepening...
The ocean plays a major role in the moderation of anthropogenically-induced climate change by absorbing roughly quarter anthropogenic CO2 (Cant). This absorption Cant leads to acidification, threatening marine's life. North Atlantic Ocean encompasses highest storage capacity per unit area. subpolar gyre is subject large seasonal decadal variability that might impact storage. To investigate evolution over 2011-2021 period and its relationship with dynamics this region, we use Argo-O2 array...
The ocean is a net sink for quater of the carbon dioxide emitted to atmosphere by human industrial activities and land-use change (Cant). North Atlantic Ocean encompasses highest storage capacity Cant per unit area. In particular, Labrador Irminger Seas are two basins storing high amount due deep convection activity taking place there. temporal evolution concentration in these their inventories 0-1800 depth layer estimated over period 2011-2021. values from Argo floats equipped with oxygen...
The ocean is the largest carbon reservoir on Earth, and a major sink for excess of CO2 (anthropogenic carbon) emitted to atmosphere by human activities. Having removed about quater these emissions since beginning industrial era, ocean’s key role in climate particularty outstanding North Atlantic (NA). A combination physical biological processes makes NA key-role region natural anthropogenic uptake storage, hence global cycle. Traditionally, seasonal cycle has been assumed respond...
The world's oceans are confronted with plastic pollution, 80% of which is terrestrial origin, flowing mainly from the mismanaged waste coastal populations and to a less extent, river discharge. To study fate this we follow trajectories neutral particles released continuously in numerical ocean simulations two realistic source scenarios defined according poorly managed three-dimensional calculated for period 24 years by Ariane Lagrangian tool currents simulated ¼° global...
<p><span>Since the industrial revolution, human activities have emitted large amount of anthropogenic carbon (C</span><span><sub>ant</sub></span><span>) into atmosphere through burning fossil fuel, production cement and land-use change. Via air-sea gas exchange, ocean absorbs roughly a third...