A5102842585- Landslides and related hazards
- Geology and Paleoclimatology Research
- Geological formations and processes
- Soil erosion and sediment transport
- Geochemistry and Geologic Mapping
- Groundwater and Isotope Geochemistry
- Geological and Geochemical Analysis
- Advanced Numerical Analysis Techniques
- Cryospheric studies and observations
- Hydrology and Sediment Transport Processes
- Marine and coastal ecosystems
- Geochemistry and Elemental Analysis
- Isotope Analysis in Ecology
- Rangeland Management and Livestock Ecology
- Tree Root and Stability Studies
- Water Quality Monitoring Technologies
- High-pressure geophysics and materials
- Water Quality Monitoring and Analysis
- Impact of Light on Environment and Health
- Advanced Topics in Algebra
- Radioactivity and Radon Measurements
- Flood Risk Assessment and Management
- Photodynamic Therapy Research Studies
- Rice Cultivation and Yield Improvement
- Aquatic Ecosystems and Phytoplankton Dynamics
Magellium (France)
2022-2025
Université de Lorraine
2014-2023
Centre de Recherches Pétrographiques et Géochimiques
2013-2023
Centre National de la Recherche Scientifique
2013-2021
Sorbonne Université
2021
Géosciences Environnement Toulouse
2021
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2021
Laboratoire d’Océanographie de Villefranche
2018-2021
Institut de minéralogie, de physique des matériaux et de cosmochimie
2021
Structure et Instabilité des Génomes
2021
This study introduces Lake SkyWater (LSW), a novel radiometric buoy designed for the reliable measurement of remote sensing reflectance (Rrs) in lakes using Skylight-Blocked Approach (SBA). LSW addresses key challenges “on-water” field radiometry owing to its motorised rotating system, which maintains radiance sensor optimal geometrical conditions (i.e., facing sun). Our device is easy transport and deploy can be controlled with smartphone over Wi-Fi. Its modular design, uses standard...
Abstract Identifying the roles of erosional processes in denudation mountain ranges requires a better understanding sensitivity to climatic, topographic, or lithologic controls. We analyzed erosion Narayani River basin (draining central Nepal and presenting contrasted geochemical signatures its outcropping rocks wide variety climatic conditions) assess relative contributions annual sediment export. By combining acoustic Doppler current profiler measurements with depth profiles daily surface...
Lake water quality assessment requires quantification of phytoplankton abundance. Optical satellite imagery allows us to map this information within the entire lake area. The ESA Climate Change Initiative (ESA-CCI) estimates Chl-a concentrations, based on medium resolution data, a global scale. concentrations provided by ESA-CCI consortium were analyzed assess their representativeness for monitoring and subsequent phenology studies in Geneva. Based vertically resolved in-situ those datasets...
Spaceborne optical sensors are a useful tool for monitoring water quality in oceans, lakes and rivers on large scale, at high frequency relatively low costs. Based colour algorithms, many key biogeochemical parameters operationally estimated from satellite data (e.g. chlorophyll-a concentration). Calibrating validating these algorithms requires huge collection of high-quality situ radiometric data, such as the water-leaving radiance Lw (or remote sensing reflectance Rrs), necessitating...
Water clarity is a widely used indicator to monitor water quality and ecological status of lakes. It has been routinely assessed through in situ measurements the Secchi disk depth (ZSD). Remote sensing (RS) this parameter could beneficially complement sparse data set but still remains dependent on availability ground-truth be validated. Here, high-spatial resolution satellite missions were compared with ZSD various bodies France . Our objective evaluate contribution remote for densifying...
The Khudi river in Nepal is an example of a basin undergoing intense physical erosion by landslide under very wet monsoonal conditions. Although such regime, dissolved element concentrations are expected to during the monsoon, we observe marked increases K and Ca flood events. These peaks well correlated with suspended load order magnitude. data suggest that release enhanced rock disaggregation events sediment transfer.
The Glaciations impacted erosion during the Late Cenozoic but no consensus has emerged whether they led to increased rates globally. In Himalayas, recent work used past sediment concentrations of terrestrial cosmogenic nuclide (TCN) 10Be and demonstrated that have not permanently in Himalayas. However, for Quaternary, published sedimentary records suffer from provenance uncertainties which prevent elaborate on causes steady rates. Here, we document new, 4,000-m thick Valmiki Section (VS)...
Summary Although the topographic evolution and erosion dynamics of Himalayan range have been extensively documented, it is not known how very high peaks erode. Some conceptual models assume that intense periglacial processes involve regressive peak headwall at rates dictated by valley-floor downcutting glaciers. However, recent data indicate frost-cracking intensity decreases with elevation, suggesting instead highest are free erosion, raising question their long-term evolution. Here, we...
We present the general framework of Écalle's moulds in case linearization a formal vector field without and within resonances. enlighten power by their universality, calculability. modify then technique to fit seek normal form Hamiltonian cartesian coordinates. prove that mould calculus can also produce successive canonical transformations bring into form. Kolmogorov theorem on fields near diophantine torus action-angle coordinates using techniques.