Élodie Martinez
YOU?
Author Swipe
View article: Seasonal Variability of Phytoplankton Vertical Distribution in a Contrasted South Pacific Ocean From BioGeoChemical‐Argo Profiling Floats
Seasonal Variability of Phytoplankton Vertical Distribution in a Contrasted South Pacific Ocean From BioGeoChemical‐Argo Profiling Floats Open
The seasonal variability of phytoplankton vertical distribution is investigated in the South Pacific where observations are scarce and scattered. We used 13 BioGeoChemical‐Argo floats deployed across diverse oceanic environments. The seaso…
View article: Probabilistic Diffusion Models for Ocean Chlorophyll-a Prediction
Probabilistic Diffusion Models for Ocean Chlorophyll-a Prediction Open
Phytoplankton play a key role in maintaining marine ecosystems and regulating global carbon dioxide concentrations through photosynthesis. Thus, it is crucial to assess and understand their temporal variations. However, fluctuations of phy…
View article: Contrasted Trends in Chlorophyll‐<i>a</i> Satellite Products
Contrasted Trends in Chlorophyll‐<i>a</i> Satellite Products Open
Phytoplankton sustains marine ecosystems and influences the global carbon cycle. This study analyzes trends in surface chlorophyll‐ a concentration (Schl), a proxy for phytoplankton biomass, using six of the most widely used merged satelli…
View article: Corrigendum: Reconstructing global chlorophyll-a variations using a non-linear statistical approach
Corrigendum: Reconstructing global chlorophyll-a variations using a non-linear statistical approach Open
corrigendum of https://doi.org/10.3389/fmars.2020.00464
View article: Seasonal variability of the phytoplankton biomass and its underlying processes in contrasted regions of the South Pacific Ocean based on BioGeoChemical-Argo observations
Seasonal variability of the phytoplankton biomass and its underlying processes in contrasted regions of the South Pacific Ocean based on BioGeoChemical-Argo observations Open
The South Pacific Ocean stands out as a dynamical region with contrasted biogeochemical (BGC) regimes. Among others, it encompasses mesotrophic areas as well as the most oligotrophic waters of the global ocean. Within these regions, the ex…
View article: Chlorophyll-a satellite climate time series: How machine learning can help distinguish between bias and consistency
Chlorophyll-a satellite climate time series: How machine learning can help distinguish between bias and consistency Open
Phytoplankton sustains marine ecosystems and influences global carbon dioxide levels through photosynthesis. To grow, phytoplankton rely on nutrient availability in the upper sunlit layer, closely related to ocean dynamics and specifically…
View article: Editorial: AI and remote sensing in ocean sciences
Editorial: AI and remote sensing in ocean sciences Open
EDITORIAL article Front. Mar. Sci., 08 January 2024Sec. Ocean Observation Volume 10 - 2023 | https://doi.org/10.3389/fmars.2023.1248591
View article: A Multi-Mode Convolutional Neural Network to reconstruct satellite-derived chlorophyll-a time series in the global ocean from physical drivers
A Multi-Mode Convolutional Neural Network to reconstruct satellite-derived chlorophyll-a time series in the global ocean from physical drivers Open
Time series of satellite-derived chlorophyll-a concentration (Chl, a proxy of phytoplankton biomass), continuously generated since 1997, are still too short to investigate the low-frequency variability of phytoplankton biomass (e.g. decada…
View article: Correction: Martinez et al. Neural Network Approaches to Reconstruct Phytoplankton Time-Series in the Global Ocean. Remote Sens. 2020, 12, 4156
Correction: Martinez et al. Neural Network Approaches to Reconstruct Phytoplankton Time-Series in the Global Ocean. Remote Sens. 2020, 12, 4156 Open
The authors wish to make the following corrections to the paper [...]
View article: On the Fate of Floating Marine Debris Carried to the Sea through the Main Rivers of Indonesia
On the Fate of Floating Marine Debris Carried to the Sea through the Main Rivers of Indonesia Open
Plastic debris has become an acute marine pollution concern worldwide in modern times. Indonesia is particularly impacted because of its high population density, heavy rainfall rate and numerous coastlines. A Lagrangian analysis was perfor…
View article: Data from: Basin-scale biogeochemical and ecological impacts of islands in the tropical Pacific Ocean
Data from: Basin-scale biogeochemical and ecological impacts of islands in the tropical Pacific Ocean Open
In the relatively unproductive waters of the tropical ocean, islands can enhance phytoplankton biomass and create hotspots of productivity and biodiversity that sustain upper trophic levels, including fish that are crucial to the survival …
View article: Data from: Basin-scale biogeochemical and ecological impacts of islands in the tropical Pacific Ocean
Data from: Basin-scale biogeochemical and ecological impacts of islands in the tropical Pacific Ocean Open
In the relatively unproductive waters of the tropical ocean, islands can enhance phytoplankton biomass and create hotspots of productivity and biodiversity that sustain upper trophic levels, including fish that are crucial to the survival …
View article: Spatial multi-modality as a way to improve both performance and interpretability of deep learning models to reconstruct phytoplankton time-series in the global ocean
Spatial multi-modality as a way to improve both performance and interpretability of deep learning models to reconstruct phytoplankton time-series in the global ocean Open
<p>Phytoplankton plays a key role in the carbon cycle and fuels marine food webs. Its seasonal and interannual variations are relatively well-known at global scale thanks to satellite ocean color observations that have been continuou…
View article: Deep learning approach to reconstruct satellite ocean color time series&#160;in the global ocean
Deep learning approach to reconstruct satellite ocean color time series in the global ocean Open
<p>Phytoplankton plays a key role in the carbon cycle and constitutes the basis of the marine food web. Its seasonal and interannual cycles are relatively well-known on a global scale thanks to continuous ocean color satellite observ…
View article: Neural Network Approaches to Reconstruct Phytoplankton Time-Series in the Global Ocean
Neural Network Approaches to Reconstruct Phytoplankton Time-Series in the Global Ocean Open
Phytoplankton plays a key role in the carbon cycle and supports the oceanic food web. While its seasonal and interannual cycles are rather well characterized owing to the modern satellite ocean color era, its longer time variability remain…
View article: Corrigendum: Reconstructing Global Chlorophyll-a Variations Using a Non-linear Statistical Approach
Corrigendum: Reconstructing Global Chlorophyll-a Variations Using a Non-linear Statistical Approach Open
International audience
View article: Monitoring the Influence of the Mesoscale Ocean Dynamics on Phytoplanktonic Plumes around the Marquesas Islands Using Multi-Satellite Missions
Monitoring the Influence of the Mesoscale Ocean Dynamics on Phytoplanktonic Plumes around the Marquesas Islands Using Multi-Satellite Missions Open
The Marquesas islands are a place of strong phytoplanktonic enhancement, whose original mechanisms have not been explained yet. Several mechanisms such as current−bathymetry interactions or island run-off can fertilize waters in the immedi…
View article: Reconstructing Global Chlorophyll-a Variations Using a Non-linear Statistical Approach
Reconstructing Global Chlorophyll-a Variations Using a Non-linear Statistical Approach Open
Monitoring the spatio-temporal variations of surface chlorophyll-a concentration (Chl, a proxy of phytoplankton biomass) greatly benefited from the availability of continuous and global ocean color satellite measurements from 1997 onward. …
View article: The Delayed Island Mass Effect: How Islands can Remotely Trigger Blooms in the Oligotrophic Ocean
The Delayed Island Mass Effect: How Islands can Remotely Trigger Blooms in the Oligotrophic Ocean Open
In oligotrophic gyres of the tropical ocean, islands can enhance phytoplankton biomass and create hotspots of productivity and biodiversity. This “island mass effect” (IME) is typically identified by increased chlorophyll concentrations ne…
View article: Role of Iron in the Marquesas Island Mass Effect
Role of Iron in the Marquesas Island Mass Effect Open
A remarkable chlorophyll‐a concentration (Chl, a proxy of phytoplankton biomass) plume can be noticed on remotely sensed ocean color observations at the boundary separating the equatorial mesotrophic from the subtropical oligotrophic water…
View article: Toward the Integrated Marine Debris Observing System
Toward the Integrated Marine Debris Observing System Open
Plastics and other artificial materials pose new risks to the health of the ocean. Anthropogenic debris travels across large distances and is ubiquitous in the water and on shorelines, yet, observations of its sources, composition, pathway…
View article: Community‐Level Responses to Iron Availability in Open Ocean Plankton Ecosystems
Community‐Level Responses to Iron Availability in Open Ocean Plankton Ecosystems Open
Predicting responses of plankton to variations in essential nutrients is hampered by limited in situ measurements, a poor understanding of community composition, and the lack of reference gene catalogs for key taxa. Iron is a key driver of…
View article: Influence of Tropical Instability Waves on Phytoplankton Biomass near the Marquesas Islands
Influence of Tropical Instability Waves on Phytoplankton Biomass near the Marquesas Islands Open
The Marquesas form an isolated group of small islands in the Central South Pacific where quasi-permanent biological activity is observed. During La Niña events, this biological activity, shown by a net increase of chlorophyll-a concentrati…
View article: A Surface “Superconvergence” Pathway Connecting the South Indian Ocean to the Subtropical South Pacific Gyre
A Surface “Superconvergence” Pathway Connecting the South Indian Ocean to the Subtropical South Pacific Gyre Open
We study the dispersion and convergence of marine floating material by surface currents from a model reanalysis that represents explicitly mesoscale eddy variability. Lagrangian experiments about the long‐term evolution (29 years) of an in…