Fanny Chenillat

Fanny Chenillat
ACTIMAR

PhD in Oceanography
R&D Engineer in Operational Oceanography, ACTIMAR

About

16
Publications
4,055
Reads
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359
Citations
Citations since 2017
4 Research Items
248 Citations
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20172018201920202021202220230102030405060
20172018201920202021202220230102030405060
Introduction
Interannual variability of biogeochemical properties in the tropical Atlantic (TRIATLAS project)
Additional affiliations
September 2020 - September 2021
Institute of Research for Development
Position
  • PostDoc Position
Description
  • TRIATLAS project: study of the interannual variability od biogeochemical properties in the Tropical Atlantic
April 2019 - April 2020
Université de Bretagne Occidentale
Position
  • PostDoc Position
April 2019 - June 2020
French National Centre for Scientific Research
Position
  • PostDoc Position
Description
  • Project about plastic fate released from the coastline at global scale using a modeling approach (with Lagrangian experiments)

Publications

Publications (16)
Article
Full-text available
Plain Language Summary The tropical Atlantic Ocean is characterized by strong year‐to‐year surface temperature fluctuations which can be classified into basin‐scale climate modes. In this study, we examine to which extent these modes of variability have a signature on the surface chlorophyll‐a concentration, a proxy of the biological activity at se...
Article
Full-text available
Model representations of plankton structure and dynamics have consequences for a broad spectrum of ocean processes. Here we focus on the representation of zooplankton and their grazing dynamics in such models. It remains unclear whether phytoplankton community composition, growth rates, and spatial patterns in plankton ecosystem models are especial...
Article
Full-text available
Marine plastic pollution is a global issue, from the shores to the open ocean. Understanding the pathway and fate of plastic debris is fundamental to manage and reduce plastic pollution. Here, the fate of floating plastic pollution discharged along the coasts is studied by comparing two sources, one based on river discharges and the other on misman...
Article
Full-text available
The California Current System (CCS) is an eastern boundary upwelling system characterized by strong eddies that are often generated at the coast. These eddies contribute to intense, long-distance cross-shelf transport of upwelled water with enhanced biological activity. However, the mechanisms of formation of such coastal eddies, and more important...
Article
Full-text available
The California Current System (CCS) has intense mesoscale activity that modulates and exports biological production from the coastal upwelling system. To characterize and quantify the ability of mesoscale eddies to affect the local and regional planktonic ecosystem of the CCS, we analyzed a 10 year-long physical-biological model simulation, using e...
Article
Full-text available
The California Current System is an eastern boundary upwelling system (EBUS) with high biological production along the coast. Oligotrophic offshore waters create cross-shore gradients of biological and physical properties, which are affected by intense mesoscale eddy activity. The influence of eddies on ecosystem dynamics in EBUS is still in debate...
Article
Full-text available
The California Current System is an eastern boundary upwelling system (EBUS) with high biological production along the coast. Oligotrophic offshore waters create cross-shore gradients of biological and physical properties, which are affected by intense mesoscale eddy activity. The influence of eddies on ecosystem dynamics in EBUSs is still in debat...
Article
Full-text available
Eulerian models coupling physics and biology provide a powerful tool for the study of marine systems, complementing and synthesizing in situ observations and in vitro experiments. With the monotonic improvements in computing resources, models can now resolve increasingly complex biophysical interactions. Quantifying complex mechanisms of interactio...
Article
Full-text available
Understanding the effects of climate change on planktonic ecosystems requires the synthesis of large, diverse data sets of variables that often interact in nonlinear ways. One fruitful approach to this synthesis is the use of numerical models. Here, we describe how models have been used to gain understanding of the physical-biological couplings lea...
Article
Full-text available
The variability of the California Current System (CCS) is primarily driven by variability in regional wind forcing. In particular, the timing of the spring transition, i.e., the onset of upwelling-favorable winds, varies considerably in the CCS with changes in the North Pacific Gyre Oscillation. Using a coupled physical-biogeochemical model, this s...
Data
In this appendix we give a detailed description of the cross-shore transport. We quantify the eddy and mean flow contributions to the advective flux divergence in the tracer budgets: for nitrate concentration and for biomass. (DOC)
Article
Full-text available
On interannual and longer time scales, dynamical and biogeochemical fluctuations in the North Pacific are dominated by two modes of variability, namely the Pacific Decadal Oscillation and the North Pacific Gyre Oscillation (NPGO). In this study the regional expression of the NPGO in the California Current System (CCS) is detailed. The statistical r...
Article
Full-text available
The California Current System (CCS) is one of the major eastern boundary upwelling systems, which are characterized by a seasonal wind regime that upwells deep nutrient-rich water to the surface, favorable to high biological activity at coast. In the long term, the CCS ecosystem reveals still unexplained shifts in marine communities. In this contex...

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Projects

Projects (2)
Project
Submesoscale dynamics drive half the vertical velocities that bring nutrients from deep layers to the well-lit surface layer of the ocean. We know that these nutrient fluxes have direct impacts on planktonic ecosystem structure and function. I am currently investigating the impacts of submesoscale forcing on planktonic ecosystem dynamics using a size structured planktonic ecosystem model coupled to an extant, high-resolution circulation model. I will focus my analysis on the impact of both bottom-up controls (from rapid nutrient inputs) and top-down controls (from grazing pressure) on planktonic dynamics.