A5019745496- Marine and environmental studies
- Coastal and Marine Dynamics
- Geological formations and processes
- Coastal wetland ecosystem dynamics
- Geology and Paleoclimatology Research
- Maritime and Coastal Archaeology
- Aquatic and Environmental Studies
- Flood Risk Assessment and Management
- Aeolian processes and effects
- Tropical and Extratropical Cyclones Research
- Fish Ecology and Management Studies
- Underwater Acoustics Research
- Coastal and Marine Management
- Archaeology and ancient environmental studies
- Hydrology and Sediment Transport Processes
- Smart Grid Security and Resilience
- Ancient and Medieval Archaeology Studies
- Network Security and Intrusion Detection
- Land Rights and Reforms
- Big Data Technologies and Applications
- Global Energy and Sustainability Research
- Water-Energy-Food Nexus Studies
- Methane Hydrates and Related Phenomena
- Geophysics and Gravity Measurements
Institut de Recherche pour le Développement
2019-2025
University of Bucharest
2015-2025
Centre National de la Recherche Scientifique
2019-2025
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2024-2025
Centre de Recherche et d’Enseignement de Géosciences de l’Environnement
2019-2025
Aix-Marseille Université
2019-2025
Collège de France
2024
Université de Strasbourg
2021-2023
Institut Terre & Environnement de Strasbourg
2022-2023
Ecole Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)
2023
A complete annual cycle of the dynamics fine-grained sediment supplied by Omo and smaller rivers is simulated for Lake Turkana, one world's large lakes, with hydrodynamic, wave transport model Delft3D. The forced river liquid solid discharge wind data in order to simulate cohesive resuspension. It simulates stratification due salinity, generation dissipation, advection resuspension waves currents, multiple fractions. comparison simulation results remotely-sensed imagery available in-situ...
ABSTRACT Lake Hulun, the fifth‐largest lake in China, is a shallow (water depth <10 m) with typical wave‐dominated landforms developed around shoreline, semi‐enclosed bay located its southern corner. This novel study aims to understand wind‐driven hydrodynamics and related depositional patterns data‐sparse Hulun. To achieve this, series of numerical simulations were conducted hydrodynamic sediment transport model. The simulated are greatly influenced by wind direction shifts but subject...
Abstract We document a case of exceptionally large natural breaching sandy spit (Sacalin spit, Danube Delta) using multiannual to seasonal surveys topography and bathymetry on successive cross‐barrier shoreface profiles, LiDAR data, satellite imagery, wind wave data. The breach, which quickly reached 3.4 km in May 2014, is attributed morphological preconditioning the narrow (50–150 m) barrier, was susceptible even during moderate storm conditions. event switched barrier's decadal evolution...
This work describes the main evolutionary stages of Sacalin barrier island developed in last 125 years relation to storminess variability, river supply, accommodation space, and establishment morphodynamic feedbacks operating association with occurrence extensive breaches. deltaic is highly mobile due its low elevation high wave currents exposure, recording a continuous elongation (of ca. 150 m/yr) progradation downdrift sector (South Sacalin) but rapid retreat (20-70 updrift sectors (North...
Two rectangular-shaped lakes, Lake Hulun and Buir, located at the boundary between China Mongolia, only c. 75 km apart therefore experiencing similar wind fields, have been studied based on satellite images field surveys in order to compare their geomorphological sedimentological characteristics. The wind-driven hydrodynamics, which a significant effect development of littoral landforms sediment distribution, discussed for two lakes that experienced prevailing perpendicular long axis. A...
Abstract River sediment supply ( Qs ) and longshore transport LST are recognized as two paramount controls on river delta morphodynamics stratigraphy. We employed the Delft3D model to simulate evolution of deltas from fluvial wave‐dominated conditions, revealing interplay between river‐ wave‐driven quantities. Wave‐influenced may show alternating accumulation retreat patterns driven by avulsions wave‐induced diffusion, posing coastal management challenges. Deltas with higher wave energy...
At river mouths, fluvial jets and longshore currents (LSCs) generated by waves interact hydrodynamically. This idealized numerical modeling study simulates a large number of hydro-morphodynamic conditions (650) to explore the emergent hydrodynamics determined different mouth bar volumes geometries, discharge, wave heights, directions their potential stress on river-mouth development. We find that in absence (RMB), interactions are driven momentum balances, expressed either as balance flux (...
This paper documents the Late-Holocene environmental changes and human presence in northern Danube delta using a multidisciplinary approach that combines geoscientific data with archaeological findings, historical texts, maps. It follows formation progression of Chilia distributary reconfiguration socioeconomic activities. Sedimentary facies identified on five new cores by texture properties, magnetic susceptibility, geochemistry, macro- microfauna composition together newly obtained...
Areal changes over delta surfaces determined by land and water ratios are a promising tool for identifying spatial temporal in deltas that may reveal subsidence shoreline erosion. Such can also provide the basis more detailed studies on variations land-cover vegetation. Changes areas 35-year period (1984–2019) were selection of ten river Mediterranean (Nile, Rhône, Po, Ebro, Moulouya, Ceyhan-Seyhan, Medjerdja, Ombrone, Arno) Black Sea (Danube), with particular focus aspects With exception...
This study reports on the Letea dune field - largest of this type in Danube delta and S&#259;r&#259;turile beach ridge plain, which both displayed morphodynamics during Little Ice Age (LIA: 1450 &#8211; 1850). The reconstructed two deltaic units are based GPR scanning marine aeolian structures OSL dating, aimed to track sea level curve, activity archived these coastal barriers. earliest features preserved modern barrier landscape appeared ca. 2400 years ago as shore parallel...
Danube Delta coastline experienced variable dynamics in the last 160 years, depending on factors and processes which had leading role at different temporal spatial scales.At centennial time-scales, shoreline evolution was highly influenced by threefold decrease of sediment discharge century, while multi-decadal scale, storminess (as a result climate variability) driving factor for changes.Overall, human influence superposed natural response coast to variability climatic, hydrological...