6 PhD positions in Seismology

The Institute of Geophysics of the Polish Academy of Sciences is the leading scientific centre in Poland in the field of the Earth physics research. The Institute's research programme considers experimental and theoretical studies in scientific disciplines such as seismology, geomagnetism, atmospheric physics, geophysical imaging, lithospheric research, hydrology & hydrodynamics and polar & marine research. The Institute employs about 200 people (including 60 academics) and is a member of major international geophysical bodies.

As a member of the Geoplanet Doctoral School and Environmental Doctoral School, the Institute of Geophysics offers the PhD courses in geophysics. The course lasts 4 years, is conducted in English and ends with a PhD thesis. During the course, the student attends lectures and participates in research under the direction of a supervisor.

Doctoral students can receive, for the duration of their studies, a doctoral scholarship 2100 PLN monthly. The best three candidates from abroad may apply for scholarship 5000 PLN monthly.

The Institute of Geophysics seeks applicants
for six doctoral positions
in Seismology and related topics.

1. Lithospheric structure and tectonics of ultra-slow mid-oceanic ridge and passive continental margin on an example of the Knipovich Ridge in the Svalbard region based on seismic passive and active methods.

The PhD student will work on seismic active data collected from several projects performed in the Svalbard region to prepare seismic 3-D model using at least ray-tracing trial-and-error method as a base. There are also available geographically limited passive seismic data to interpret using different methods (tomography and others) for regional or local seismic structure around the northern part of Mid-Atlantic Oceanic Ridge (Knipovich Ridge).

Requirements for candidates: should hold master's degree in geophysics, physics, geology with the major in geophysics or related. Good evaluation of the study course. Good knowledge of English in speech and writing. Ability to work in unix/linux and MS Windows operating systems and familiar with at least the basics of programming. Ability to organize work independently. Additional advantages: knowledge of Fortran or C++ programming language, practical knowledge of seismic data processing systems (e.g. Seismic Unix, PROMAX), knowledge of other foreign languages (especially Polish and Russian).

For more information contact Dr Wojciech Czuba (wojt@igf.edu.pl)

2. Non-DC components of full moment tensor solution as an artifact of P and S wave amplitude inversion.

The PhD candidate is expected to carry out the following research tasks: preparing the algorithm and scripts to generate synthetic amplitudes and radiation pattern originated by the non-shearing seismic sources; synthetic tests of focal sphere coverage influence on moment tensor inversion results for typical anthropogenic seismicity cases; development of SV and SH amplitude moment tensor inversion as an extension of P amplitude method; development of the moment tensor inversion with use of intermediate field displacement equations; development of the moment tensor inversion with use of near field displacement equations; development of the moment tensor inversion with use of extended source assumption and different rupture scenario; application of the methodology for focal mechanism solutions of anthropogenic, tectonic, volcanic and glacial seismic events.

Requirements for candidates: should hold master's degree in geophysics or geology or physics. Writing and speaking English necessary at scientific communication level. Programming skills: Matlab (Octave) and/or Python ObsPy.

For more information contact Dr Grzegorz Lizurek (lizurek@igf.edu.pl)

3. Looking for characteristic footprints in seismic process evolution as the tool in discrimination between tectonic and reservoir triggered seismicity

The PhD candidate is expected to carry out the following research tasks: modelling of the influence of man-induced pore-pressure on stress axes orientation; modelling of the influence of man-induced water mass load changes on stress axes orientation; modelling of the influence of ground water level depletion on stress axes orientation; modelling of the diffusion and permeability influence on the spatio-temporal distribution of seismicity; modelling of the influence of above mentioned factors on spatio-temporal distribution of seismicity; application of the developed models into case studies: reservoir impoundment data from IS-EPOS platform (at least three cases Monteynard, Song Tranh and Czorsztyn).

Requirements for candidates: should hold master's degree in geophysics or geology or physics. Writing and speaking English necessary at scientific communication level. Programming skills: Matlab (Octave) and/or Python ObsPy

For more information contact Dr Grzegorz Lizurek (lizurek@igf.edu.pl)

4. Development of seismic hazard estimation methods

The successful PhD candidate will perform the research to extend the seismic hazard estimation methods onto non-Poissonian seismic processes, complex magnitude distributions and model-free estimation of epicentre distribution accounting for relations among the events. The modified methods will be applied to the anthropogenic seismicity data. The classic methods of seismic hazard analysis assume that the seismic occurrence process is a Poisson process and that an exponential distribution models the magnitude distribution. It is usually also assumed that the distribution of epicentres of seismic events is a uniform distribution in a seismic zone. Statistical tests indicate however that these assumptions are often not fulfilled by the actual seismic processes, in particular by the processes of anthropogenic seismicity.

Requirements for candidates: should hold the master's degree in Earth sciences or physics. Good mathematical background. Basic knowledge of probability calculus and mathematical statistics. Computer programing skills (Matlab or R) at least at the level of the own codes development. Good command of English, at least the B2 level.

For more information contact Prof. Stanislaw Lasocki (lasocki@igf.edu.pl)

5. Studies of anthropogenic seismic processes in multidimensional parameter spaces

The successful PhD candidate will carry out the studies whose aim is to get insight into the relationships between technological operations and seismicity, and eventually managing the anthropogenic seismic hazard. An earthquake is described by a set of source parameters e.g. the occurrence time, hypocentral coordinates, magnitude, moment tensor components, etc. It can be also linked to the other parameters that describe external conditions in which this seismic event occurred. The transformation to equivalent dimensions transforms the initial set of parameter values into the set of the values mutually comparable. Thanks to that it is possible to track a seismic process in the multidimensional spaces built by any parameters linked to the seismic events. In the framework of the proposed topic, the development of anthropogenic seismic processes will be studied in parameter spaces consisting of the seismic source parameters and the parameters of the technological process that induces the seismicity.

Requirements for candidates: should hold the master's degree in Earth sciences or physics. Good mathematical background. Basic knowledge of probability calculus and mathematical statistics. Computer programing skills (Matlab or R) at least at the level of the own codes development. Good command of English, at least the B2 level.

For more information contact Prof. Stanislaw Lasocki (lasocki@igf.edu.pl)

6. Similarities of closely spaced seismic sources recorded on mining environment

The successful PhD candidate will focus on the analysis toward possible similarities/differences among sources located in the same mining panel. The study will be performed using high quality data recorded on both broad-band seismometers and strong motion devices. Various scientific methods with be used including: waveforms signal processing, hypo location, source mechanism and spectral analysis. Due to huge database, the analysis will be automated. The work will be prepared in Department of Seismology in cooperation with industrial partners. Seismicity induced by mining gives an opportunity to improve knowledge concerning physics of the seismic sources.

Requirements for candidates: should hold the master's degree in geophysics/physics/geology or a closely related disciplines. The ideal candidate should be familiar with Python and/or Matlab (Octave) or other programing language. Computer programing skills (Matlab or R) at least at the level of the own codes development. Writing and speaking English necessary at scientific communication level.

For more information contact Dr Lukasz Rudzinski (rudzin@igf.edu.pl)

Recruitment to the positions is carried out in the form of the competition.

The deadline for the application is 19th August, 2019.

The detailed information about recruitment process, required documents and the evaluation procedure can be found at: https://www.igf.edu.pl/phdstudies.php

For additional information contact Dr Krzysztof Kochanek (kochanek@igf.edu.pl) or Anna Cygan (sn@igf.edu.pl)













posted: 10 July 2019     Please mention EARTHWORKS when responding to this advertisement.