Proposal of dissertation topics
deailed info is provided by supervisor. Contact details in the description of dissertation topics.
Earthquakes swarms mechanisms and the related seismic hazard
EARTHQUAKES SWARMS MECHANISMS AND THE RELATED SEISMIC HAZARD
- Master's degree in exact sciences (preferred physics), natural sciences (geophysics, earth sciences) or technical sciences and a positive result of recruitment for doctoral studies at the Institute of Geophysics of the Polish Academy of Sciences (until the beginning of work);
- solid basis in the fields of mathematical modelling of environmental processes, statistics (candidates who graduated from physics, informatics and environmental science faculties are preferred);
- experience in the numerical analysis of large data sets; programming skills (e.g. MATLAB, R, FORTRAN, PYTHON etc.); a good level of both written and spoken English is mandatory, together with good communication skills.
Satellite imagery to support flood risk modelling in large European rivers
PHD SCHOLARSHIP FULLY FUNDED BY THE NATIONAL SCIENCE CENTRE OF POLAND
SATELLITE IMAGERY TO SUPPORT FLOOD RISK MODELLING IN LARGE EUROPEAN RIVERS
Supervisor: Assoc. Prof. Michael Nones
Start date: 2022-10-01 End date: 2026-09-30
Deadline for submitting applications: 2022-06-20
- satellite imagery analysis: GEE will be used for analyzing satellite-derived remote sensing imagery to derive fluvial dynamics at a sub-seasonal scale. GEE scripts will be created to derive a series of established multispectral indices to evaluate river evolution during the last 40 years. Multitemporal maps will be generated to show seasonal changes in i) vegetation; ii) exposed sediment; iii) water surfaces.
- numerical modelling: iRIC is a free model that allows for simulating riverine dynamics at multiple scales, thanks to the opportunity to couple various solvers. For each river, a series of models will be created based on the available data and the GEE information, using a 2D solver, which allows for hydro-morpho-biodynamics simulations. Various multi-scale models will be applied for creating flood inundation maps of not only the entire river but also focusing on specific critical areas, based on past disruptive floods. A series of scenarios will be created and compared to flood evidence, to show that the concept of yearly return period and “fixed” river can lead to a non-correct representation of flood risk.
- analysis of satellite imagery via Google Earth Engine, by creating ad-hoc scripts
- numerical modelling of the study reaches, mainly via the Mflow_02 solver of iRIC
- preparation of project proposals (e.g., internship) and involvement in ongoing initiatives both in Poland and in the UK
- participation in international networks and initiatives;
- reporting in national/international conferences, and via scientific articles.
- MSc in hydrology or geophysics or environmental sciences or technical sciences (engineering);
- very good knowledge of hydrological processes, hydraulics, remote sensing, GIS;
- very good knowledge of hydraulic modelling tools, with preference to iRIC;
- programming skills in any computer language (e.g., Matlab, JavaScript, Python);
- willingness to travelling, with a 6-month compulsory internship in Glasgow (UK)
- very good knowledge of English;
Seismic imaging of fluids in the near-surface medium for geohazard and geothermal related problems
Seismic imaging of fluids in the near-surface medium for geohazard and geothermal related problems
Start date: 2022-10-01 End date: 2026-09-30
Deadline for submitting applications: 2022-06-20
The forus of the PhD will be development and application of environmental seismology methods including refraction and reflection seismic supported with other geophysical techniques (ERT, MT) to study variable characteristics of the near-surface structures. Standard active seismic methods can image the subsurface with high precision. Applied in time-lapse manner the same methods can characterise underground flows, existance of water in the medium, and its state like freezing in permafrost regions. As shown in recent years existing group in IG PAS can visualise temporal changes in the internal structure of the permafrost induced by climate change, and characterise changes in the mountain landslides triggered by human activities. The aim for the PhD candidate is to enhance current functionality of near-surface group by use of modern acquisition techniques like Distributed Acoustic Sensing (DAS) and modern interpretation techniques of Full Waveform inwersion (FWI) methods.
Requirements for candidates: Master's degree in exact sciences (preferred physics, geophysics) or natural sciences (earth sciences); bacis knowledge in the fields of seismic data processing and interpretation; fieldwork experience; experience in numerical analysis of large data sets; programming skills (e.g. MATLAB, R, FORTRAN, PYTHON etc.); a good level of both written and spoken English is mandatory, together with good communication skills.
For more information contact Assoc. Prof. Mariusz Majdański (mmajd@igf.edu.pl)
Please apply to the GeoPlanet Doctoral School