Offre de thèse PhD sur le thème des évolutions morphologiques du littoral de la Baie de Somme incluant de la télédétection
LOG (Université du Littoral Côte d’Opale) et M2C (Université de Rouen Normandie) recherchent un candidat en thèse PhD sur le thème des évolutions morphologiques du littoral de la Baie de Somme incluant de la télédétection. Voici la description de l’offre en anglais.
The labs M2C (Université de Rouen Normandie) and LOG (Université du Littoral Côte d’Opale) are searching for a candidate for a Phd Thesis dealing with morphodynamics in the Baie de Somme (northern France). The approach is based on the coupling of multi-scale and multi-sensor measurements to investigate the topo-bathymetry and the 3D sedimentary cover of the bay (multi-spectral satellite images, airborne LiDAR and drone with hyperspectral and thermal cameras, LiDAR Terrestrial, bathymetric multibeam soundings, seismic measurements, lab analyses on surface samples and short cores including hyperspectral camera and in situ radiometric measurements).
Subject area: Sedimentology, Remote Sensing, Fluid mechanics, Data science
Salary: 1450 net/month, with social security medical coverage
Duration: 3 years
Application deadline: 01st June 2022Laboratoires:
Coastal and Continental Morphodynamics – M2C (UMR CNRS 6143), Université de Rouen Normandie, France
Laboratory of Oceanology and Geosciences – LOG (UMR CNRS 8187), Université du Littoral Côte d’Opale, France
Coastal areas are strongly impacted by climate change (e.g., sea level rise, changes in storm regimes), which leads to changes in the frequency and intensity of flooding as well as coastline retreat. These consequences are well modelled at global scale, they remain complex to understand at local/regional scales. In this context, the development of coastal models is a major challenge for predicting responses to such disturbances and therefore adopting optimal risk management strategies.
The Bay of the Somme (North of France), a system little impacted by man, is a sandy mouth in a mixed tidal and swell environment of the Eastern English Channel. The objective of this PhD thesis is to determine both the morphological and the sedimentary evolutions of this particular coastal system in response to hydro-meteorological and marine forcings by integrating multi-scale and multi-sensor measurements including:
1. Topo-bathymetry: analyses of multi-spectral satellite images, airborne LiDAR and drone with hyperspectral and thermal cameras, LiDAR Terrestrial, bathymetric multibeam soundings and seismic measurements.
2. Sedimentary cover: lab analyses on surface samples and short cores (including hyperspectral camera) and in situ radiometric measurements
3. analyses of the evolution of hydrodynamic conditions by coupling re-analysis models (multi-decadal scale) and short-term field campaigns (monthly scale).
This methodological coupling will make it possible to: (i) Assess the sediment accretion/erosion rates and their spatio-temporal variability, (ii) characterize the evolution of the sediment coverage into the 3 spatial dimensions, and (iii) calculate the sediment budget. In addition, results will also help to calibrate/validate hydro-sedimentary numerical models specifically designed for the Bay of the Somme.
Training in earth sciences, and in particular in sedimentology, hydrodynamics/fluid mechanics and/or sediment dynamics. Knowledge of coastal environments. Experience in remote sensing analysis and/or in situ measurements is required to apply for this position.
In order to apply to this position, please send your CV and cover letter to:
julien.deloffre ‘at’ univ-rouen.fr
sophie.lebot ‘at’ univ-rouen.fr
charles.verpoorter ‘at’ univ-littoral.fr