A5005428987- Coastal wetland ecosystem dynamics
- Coastal and Marine Dynamics
- Remote Sensing and LiDAR Applications
- Geophysics and Gravity Measurements
- Arctic and Antarctic ice dynamics
- Astronomy and Astrophysical Research
- Calibration and Measurement Techniques
- Aeolian processes and effects
- Cryospheric studies and observations
- Oceanographic and Atmospheric Processes
- Soil erosion and sediment transport
- Adaptive optics and wavefront sensing
- Flood Risk Assessment and Management
- Tropical and Extratropical Cyclones Research
- Geological Modeling and Analysis
- Geological formations and processes
- Food Industry and Aquatic Biology
- Geological and Geophysical Studies
- Freezing and Crystallization Processes
- Peatlands and Wetlands Ecology
- Aquatic and Environmental Studies
- Land Use and Ecosystem Services
Boston University
2022-2024
Observatoire de Lyon
2024
Université Claude Bernard Lyon 1
2024
Centre National de la Recherche Scientifique
2024
Centre de Recherche Astrophysique de Lyon
2024
Swiss Federal Institute of Aquatic Science and Technology
2021
University of Trento
2021
Abstract A wetland's ability to vertically accrete—capturing sediment and biological matter for soil accumulation—is key maintaining elevation counter subsidence sea level rise. Wetland accretion is comprised of organic inorganic components largely governed by net primary productivity sedimentation. Sea level, land elevation, productivity, are all changing across Louisiana's coastline, destabilizing much its wetland ecosystems. In coastal Louisiana, analysis from 1984 2020 shows an estimated...
Abstract Coastal marsh survival may be compromised by sea‐level rise, limited sediment supply, and subsidence. Storms represent a fundamental forcing for accumulation in starving marshes because they resuspend bottom material channels tidal flats transport it to the surface. However, is unrealistic simulate at high resolution all storms that occurred past decades obtain reliable rates. Similarly, difficult cover possible combinations of water levels wind conditions fictional scenarios. Thus,...
Abstract Wetlands in the Mississippi River Delta are rapidly degrading. Sea level rise and low sediment supply widely recognized as two main factors contributing to land‐to‐water conversion. To determine what marsh areas more resilient, it is fundamental identify drivers that regulate accretion degradation. In this study, a combination of field data aerial images used these Terrebonne Bay, Louisiana, USA. We find degradation patterns depend on whether located inland sheltered area or facing...
Abstract. Coastal marsh survival relies on the ability to increase elevation and offset sea level rise. It is therefore important realistically model sediment fluxes between marshes, tidal channels, bays as availability controls accretion. Traditionally, numerical models have been calibrated validated using in situ measurements at a few locations within domain of interest. These datasets typically provide temporal information but lack spatial variability. This paper explores potential...
Abstract. Flocculation controls mud sedimentation and organic carbon burial rates by increasing settling velocity. Floc velocity can be predicted using a semi-empirical model that depends on turbulence, sediment concentration, geochemical variables or an explicit Stokes law-type floc diameter, permeability, fractal properties. However, validation of the models with direct field measurements is lacking. We employed camera, in situ particle sizing, analysis grain size-specific suspended...
Abstract Vegetation is a key component controlling soil accretion in coastal wetlands through production of belowground organic matter and enhanced deposition mineral sediments. structure proxy for wetland health degradation that can be monitored at large scales with remote sensing. Among different multispectral indices, the Normalized Difference Index (NDVI) generally used this purpose. Using Google Earth Engine (GEE), NDVI time‐series are extracted around 45 monitoring stations Coastwide...
Abstract. Coastal marsh survival relies upon to their ability increase elevation and offset sea level rise. It is therefore fundamental realistically model the sediment fluxes between marshes, tidal channels bays. Traditionally, numerical models have been calibrated validated using in-situ measurements located in few locations within domain of interest. These datasets typically provide temporal information but lack spatial variability. This paper explores potential coupling with high...
Abstract. Predicting the freezing time in lakes is achieved by means of complex mechanistic models or simplified statistical regressions considering integral quantities. Here, we propose a minimal model (SELF) built on sound physical grounds that focuses pre-freezing period goes from mixed conditions (lake temperature at 4 ∘C) to formation ice (0 ∘C surface) dimictic lakes. The based energy balance involving two main processes governing inverse stratification dynamics: cooling water due heat...
BlueMUSE is a blue-optimised, medium spectral resolution, panoramic integral field spectrograph under development for the Very Large Telescope (VLT). With an optimised transmission down to 350 nm, resolution of R$\sim$3500 on average across wavelength range, and large FoV (1 arcmin$^2$), will open up new range galactic extragalactic science cases facilitated by its specific capabilities. The consortium includes 9 institutes located in 7 countries led Centre de Recherche Astrophysique Lyon...
Abstract. Flocculation controls mud sedimentation and organic carbon burial rates by increasing settling velocity. However, calibration validation of floc velocity models in freshwater are lacking. We used a camera, situ laser diffraction particle sizing, suspended sediment concentration–depth profiles to measure flocs Wax Lake Delta, Louisiana. developed new workflow that combines our multiple data sources distinguish between unflocculated attributes were previously difficult constrain....
Coastal marshes represent a highly valuable ecosystem that provides wide array of services. Unfortunately, survival might be compromised by sea level rise, limited sediment supply, and subsidence. Storm surges fundamental source for starving because their ability to resuspend bottom material in channels tidal flats transport it the marsh surface. However, intermittent nature makes quantification effect not trivial. In this study, we selected 11 storm with different intensity Terrebonne Bay,...
Abstract. Predicting the freezing time in lakes is pursued by means of complex mechanistic models or simplified statistical regressions considering integral quantities. Here, we propose a minimal model (SELF) built on sound physical grounds, which focuses pre-freezing period that, dimictic lakes, goes from mixed conditions (lake temperature at 4 °C) to formation ice (0 °C surface). The based energy balance involving two main processes governing inverse stratification dynamics: cooling water...