Supervisor: Assoc. Prof. Marzena Osuch

DR HAB. INŻ. MARZENA OSUCH, PROF. PAN

tel.: +48 22 6915-856 e-mail: marz@igf.edu.pl

The PhD position is offered by the Institute of Geophysics, Polish Academy of Sciences within the National Science Center of Poland project i.e. Hindcasting and projections of hydro-climatic conditions of Southern Spitsbergen.

The main focus of the PhD will be an analysis of rainfall-runoff processes in the Arctic catchments located in South Spitsbergen, the largest island of the Svalbard archipelago. The behavior of river catchments, in conjunction with glaciers, permafrost and biotic elements, is undoubtedly one of the most important indicators of climate and environmental change in the Arctic. The main aim will be an updated water-balance study based on meteorological, hydrological, and glacier mass-balance monitoring from previous years and projections for the future. Due to complexity of cold region hydrological systems, a catchment response can vary depending not only on climate forcing but also on catchment properties including: the state and distribution of permafrost, water storage capacity, glacial coverage, soil properties, elevation, and geomorphology.

He/She should have a Master of Science Degree or equivalent qualification in hydrology, climatology or a closely related discipline.

The ideal candidate should be familiar with hydrological measurements, remote sensing methods, statistical data analysis, and be familiar with programming (MATLAB, R) and GIS (e.g. ArcGis).

The candidate will be expected to work partially in the Arctic. He/she will be expected to attend at least one international conference per year, so fluent English is obligatory. All general enquiries and formal applications including: letter of motivation, current CV, copies of certificates, list of courses with grades taken during MSc and BSc studies, (all in Polish or English) should be send to Dr Osuch (marz@igf.edu.pl).

tel.: +48 22 6915-862
e-mail: kochanek@igf.edu.pl

Although the mechanisms of the rainfall-runoff processes in river catchments are relatively well identified and documented in the hydrological literature. On the other hand, the problem of the accurate modelling of the precipitation pattern still creates the room for improvements. Insufficient monitoring of precipitation, its significant variability both in terms of spatial and temporal distribution result in substantial uncertainty of this input data and make it difficult to assess the real water capacity introduced to the modelled catchment.

The PhD research consist on the modelling of the runoff from a river catchment for various pre-selected scenarios of the precipitation distribution, both temporal and spatial. Furthermore, the most potentially dangerous patterns from the point of view of culmination flows in the selected profile (e.g. closing cross-section) will be indicated. As a case study we propose the River San catchment (South-East Poland), because it is highly diversified in terms of hydrological, geographical and social conditions. Except from the regular precipitation and discharge data available in the Institute of Meteorology and Water Management (IMGW), the radar precipitation data will be employed (also prepared by the IMGW), together with synthetic scenarios (i.e. based on computer modelling) of the rainfall spatial coverage and magnitude.

Requirements for candidates:

• MSc in hydrology or geophysics or environmental sciences or technical sciences (engineering);
• Math literacy, basic knowledge of hydrological processes, hydraulics, GIS;
• English reading/writing/speaking at least at the level enabling understanding of scientific publications and interactions with international collaborators;
• Programming skills in any computer language;
• Knowledge of Polish language will be an additional asset.

tel.: +48 22 6915-862
e-mail: kochanek@igf.edu.pl

tel.: +48 22 6915-862
e-mail: kochanek@igf.edu.pl

Recruitment for a PhD position within the Polish-Chinese project SHENG1

Title: Modelling drought dynamics under changing climatic conditions

Supervisor: prof. Renata J. Romanowicz

Institution name: The Institute of Geophysics, Polish Academy of Sciences, Department of Hydrology and Hydrodynamics, Warsaw, Poland.

Duration 3 years,

start date: 1.10.2019,

Date of the announcement: 18/06/2019

The deadline for submission of offers: 19/08/2019

Form of application: e-mail to the address studi.doktoranckie@igf.edu.pl

Reference HUMDROUGHT

Requirements:

We seek candidate with MSc degree in Geography, Environmental Sciences, Environmental/Civil Engineering or Hydrology. Numerate applicants with a considerable knowledge of mathematical modelling of hydrological processes who also have programming skills in MATLAB or R will be particularly welcome. A good level of both written and spoken English is mandatory, together with good communication skills.

Abstract

We offer a position in an international and interdisciplinary team. The PhD is funded by a National Science Centre (NCN), within the SHENG1 Polish-Chinese project “Human and climate impacts on drought dynamics and vulnerability (HUMDROUGHT)”. The project is run in cooperation with the Hydrology Department of the Hohai University, Nanjing, China.

The project objective is to deepen the understanding of drought dynamics by taking the Huai River basin in China and the River Vistula basin in Poland as two comparative case study catchments. The objective will be achieved using multi-source data (including ground- and satellite-based observations and data products obtained from reprocessing) and hydrological model simulations to investigate the water transformation processes among evapotranspiration, soil moisture, groundwater, streamflow and industrial water abstractions under different catchment physiographic conditions. The study will allow the interaction mechanism among drought characteristics - drought impacts - water resources management measures to be explained and strategies of water resource management to reduce the drought vulnerability to be proposed, so as to support decision-making for drought management and drought resilience enhancement in the context of climate change.

The successful candidate will develop skills in integrated surface and groundwater modelling, uncertainty analysis, climate change impacts on droughts and working with large datasets.

Conditions of employment

Contract duration: 36 months

Start of employment: 01.10.2019

Scholarship amount: PLN 3300 / month

For further information, please contact Prof. Renata Romanowicz (romanowicz@igf.edu.pl).

Additional information

The scholarship application should be sent along with the documents required for admission to doctoral studies at the address given in the recruitment advertisement for the doctoral school. In the title of the message, please include the name "SHENG1".

The scholarship committee reserves the right to conduct interviews with selected candidates. The decision of the scholarship committee cannot be appealed. The decision and the selection of the candidate will take place until 30/10/2019. Candidates will be notified about the results by e-mail. The recruitment process will be carried out in accordance with the Recruitment Regulations for the Doctoral School in the field of geophysics at the IGP PAS, as well as the Regulations for granting scholarships for young scientists in research projects and the regulations for granting scholarships for young scientists under doctoral scholarships financed by the National Science Centre.

APPLICATION

Supervisor: prof. Paweł Rowiński

Supervisor: prof. Paweł Rowiński

DR INŻ. MONIKA KALINOWSKA

tel.: +48 22 6915-855
e-mail: mkalinow@igf.edu.pl

Short description: Vegetation in river systems may help us in solving a variety of water management  challenges, however, there are numerous research gaps that still do not allow us to fully understand how  the system works. The PhD student will be involved in the work aimed to the understanding of the role  of vegetation in river systems. This will be a combination of field, experimental, computational and  theoretical research.   

Qualifications required: For this position, the candidate should hold a master degree in mathematics,  physics, geophysics, environmental sciences or a related subject. We are looking for a person with good  mathematical skills. Experience in conducting experimental research is welcome, programming skills are  desirable. Candidates must be fluent in spoken as well as written English. 

Supervisor: Dr. Ing. Michael Nones

tel.: +48 22 6915 776

e-mail: mnones@igf.edu.pl

Short description: Typical hysteretic patterns are observable in water discharge and suspended sediment transport, and many factors can contribute to define the magnitude and the behaviour of such hysteresis. At the larger scale, it is interesting to evaluate the effects of the hydrological forcing (successive dry and wet periods) on the bed morphology, looking for possible hysteretic trends (namely, searching for a “memory” of the river system). Indeed, for managing alluvial watercourse, it is necessary to evaluate the changes of the cross-section shape due to variable water stages, aiming to forecast future patterns on the basis of hydrological information.

The study will compare different rivers worldwide by means of satellite imagery, aiming to extrapolate general relationships between quantities like hydrology (discharge/precipitation), active width and morphological changes. Using a mathematical description of such relationships, site-specific and general river management strategies will be developed.

Qualifications required: For this position, the ideal candidate should hold a master’s degree in mathematics,  physics, geophysics, environmental sciences, river engineering or a related subject. We are looking for a person with good mathematical skills and knowledge of remote sensing. Experience in conducting experimental research is welcome, programming skills are  desirable. Candidates must be fluent in spoken as well as written English.

Supervisor: Dr. Ing. Michael Nones

tel.: +48 22 6915 776

e-mail: mnones@igf.edu.pl

Short description: River bars are present overall the world, both in watercourses dominated by sand and in torrents covered by gravel. Based on these considerations, the study will combine field information derived from satellite and fixed-camera images with numerical models to evaluate if specific patterns of vegetation are discernible in different river types. Namely, the PhD student will investigate if the vegetation can grow and creates characteristic patterns depending or not from the hydrology, the grainsize and the geometry of the river.

Qualifications required: For this position, the ideal candidate should hold a master’s degree in mathematics,  physics, geophysics, environmental sciences, river engineering or a related subject. We are looking for a person with good numerical skills and knowledge of remote sensing. Experience in conducting experimental research is welcome, programming skills are  desirable. Candidates must be fluent in spoken as well as written English.

Supervisor: prof. Zbigniew Czechowski

prof. dr hab. Zbigniew Czechowski

tel. + 48 22 6915 683
email: zczech@igf.edu.pl

Requirements:

1. Master’s Degree in Mathematics, Physics, Geophysics, or equivalent science discipline. It is allowed to start the application for persons who will submit a commitment to receive the Master’s Degree before September, 30, 2019 with an opinion of the Master’s thesis supervisor indicating the current stage of thesis preparation.
2. Knowledge of the basics of probability theory and statistics.
3. Knowledge of the basics of differential and integral calculus.
4. Knowledge of  a programming language e.g., Fortran, Mathematica or other, and numerical methods. Experience in programming is welcomed.
5. Good command of speaking, reading and writing English.
6. Having research track record of publications, conference presentations, and participation in scientific projects will be welcomed candidate’s advantage.                 

The PhD tasks:

1. In the framework of the proposed subject, time series recorded in monitoring of geophysical phenomena will be examined using different modern statistical methods.
2. Modelling of the phenomena by the nonlinear Langevin equation. It must be appropriately modified to describe non-Markovian processes.
3. Developing the appropriate method of reconstruction of the modified Langevin equation based on time series data.
4. Testing of the procedure on synthetic data.
5. Application of the procedure to selected geophysical phenomena.
6. Meeting and workshop organizations, elaboration of the experiment results

7. Presentation of the results in conferences and scientific journals.

Abstract:

Many geophysical phenomena are generated by complex and interacting processes which are hidden and difficult or impossible for direct observation. In modelling of these phenomena statistical aspects must be taken into account. Therefore, the registered time series will be treated as  realizations of some stochastic processes.  Due to  complexity of interactions the processes  are non-Markovian. As a stochastic model which governs these processes the nonlinear Langevin equation will be applied. However, it must be appropriately modified to describe non-Markovian processes. The large portion of the thesis will be devoted to developing the appropriate method of reconstruction of the modified Langevin equation based on time series data. After testing on synthetic data, the procedure will be applied to selected geophysical time series measured in different time scales. The structure of the reconstructed equation will allow for separating averaged forces governing the phenomenon and the stochastic term generating fluctuations. A transition probability will also be found what allows for forecasting of the process under investigation.

Additional information:

1. The thesis supervisor will be Professor  Zbigniew Czechowski (Institute of Geophysics PAS).
2. In addition to the candidate’s application  submitted to Institute of Geophysics PAS it would be mandatory  to send CV and the motivation letter to the thesis supervisor: zczech@igf.edu.pl. 

Promotor: prof. Wojciech Dębski

prof. dr hab. Wojciech Dębski

tel. + 48 22 6915 964
email: debski@igf.edu.pl

Seismological research, no matter if concentrated on physics of earthquakes or the Earth structure is always based on seismic waves recorded at Earth surface or near it (deep mines) . In consequence seismological analysis always have a form of inverse problems. The thought quantities can never be measured directly their values, relations, etc. have to be inferred from existing seismic records.  For this reason it is extremal y important to develop modern numerical methods for an efficient processing seismic data. One of such technique is so called time reversal method. The goal of the proposed research is to apply this technique for inversion seismic moment tensor for mining induced  seismic data.

Candidates, should graduate in physics, r applied mathematics, informatics, or geology   and demonstrate at least passive knowledge of English.   Experience with programing in at least one of the programming language: C, Python, Matlab, R, Julia Bash, Tcsh is required.  Knowledge elementary numerical methods is wellcome.

Promotor: prof. Wojciech Dębski

prof. dr hab. Wojciech Dębski

tel. + 48 22 6915 964
email: debski@igf.edu.pl

In spite of an enormous progress  in study of earthquake source processes in recent couple of years our understanding of physical processes leading and occurring  in earthquake foci are still not satisfactory. There are many reasons of this situation among which nonlinearity of occurring processes and lack of scale separation are the most  important. Actually, this lack of scale separation between processes at micro-scales (tips of cracks, micro-cracking, to name a few) and final, large scale visible earthquake effects (ruptures of faults of  tens s to hundreds kilometers in length) is the largest problem on contemporary seismology of earthquake sources.  Within a proposed PhD work we propose an analysis of microscopic rupture processes and their relation to natural/induced seismic events using advance numerical simulations.  These simulations are planed to be based on the modern Discrete Element Method approach.

Candidates, should graduate in physics or mathematics  and demonstrate at least passive knowledge of English.  Experience with programing in at least one of the programming language: C, Python, Matlab, R, Julia Bash, Tcsh is required.

tel. + 48 22 6915 685
email: psenat@igf.edu.pl

Asperity fault model is a general, key concept used to understand seismicity in subduction zones. In this context, our studies are focused on three main tasks:

(1) to reveal hierarchical asperity structure from real seismicity data,

(2) to model earthquake occurrence and seismicity by computer simulations,

(3) to formulate earthquake forecasting problem.

To this end, some concepts of advanced mathematics and physics should be applied.

Requirements:

Programming and numerical methods skills.

Finished studies in physics or/and mathematics  (possibly geophysics or/and seismology)

A passion for theoretical researches.

Fluent English.

Sources of funding:

Researches carried out within statutory activities of the Theoretical Geophysics Department, PAS. Applications for grants during doctoral studies.

Unit name: Institute of Geophysics, Polish Academy of Sciences, Department of Magnetism

Job title: Ph.D. student – scholar

City: Warsaw

Scientific discipline: geophysics

Date of announcement: 18.06.2019

The deadline for submitting offers: 19.08.2019

Form of offers: by e-mail to the following address: studia.doktoranckie@igf.edu.pl

Requirements:

1. Participant of the doctoral studies, working on the preparation of the doctoral dissertation in the field of mathematics, physics or engineering, preferably fluid dynamics.
2. Solid basis in the fields of mathematics and physics (candidates who graduated from physical and/or mathematical faculties are preferred).
3. Programming skills (e.g. C, FORTRAN, PYTHON etc.).
4. Experience in the fields of fluid dynamics and/or electrodynamics is greatly welcome.

Description of tasks:

The task of the student will be involve analysis of the so-called Magnetic Buoyancy Instability (MBI) and its relation to hydro-magnetic dynamo in the solar interior. The study will be concerned with a model of the solar tachocline – a region of large shear, where the Solar toroidal field is greatly amplified. The Ph.D. student will be required to do both, the theoretical and numerical analysis of the dynamical equations, that is the Navier-Stokes equation with the Lorentz force and the induction equation resulting from Maxwell’s and Ohm’s laws. The ultimate aim of the project is to establish the effective dynamical equations governing the magnetic field evolution in the Solar tachocline, based on the temporal and spatial scales introduced by the MBI.  The next step is to solve the derived set of equations via numerical methods, which would allow to model the time evolution of the Solar magnetic field.

Expected start: 01/10/2019.

Call: NCN: SONATA BIS 7 – ST3

Conditions of employment:

We offer:

1. Work in one of the leading research centers in Poland
2. Remuneration paid as a scholarship, in accordance with the REGULATIONS FOR AWARDING SCIENTIFIC SCHOLARS IN RESEARCH PROJECTS FINANCED FROM THE NATIONAL CENTER OF THE CENTER OF SCIENCE of October 27, 2016 https://www.ncn.gov.pl/sites/default/files/pliki/uchwaly-rady/2019/uchwala25_2019-zal1_ang.pdf
3. Research visits and international scientific conferences
4. Possibility to obtain a doctoral degree under the supervision of dr hab. Krzysztof Mizerski.

Additional information:

Required documents:

1. The application for a scholarship, in accordance with the formula provided in the announcement,

The scholarship application should be sent along with the documents required for admission to doctoral studies at the address given in the recruitment advertisement for the doctoral school.

In the title of the e-mail, select "SONATA BIS 7-G24"

Additional information is provided by dr hab. Krzysztof Mizerski, prof. PAN: kamiz@igf.edu.pl

The candidate's decision and selection will take place by 30.10.2019 r. Candidates will be notified about the results by e-mail. The recruitment process will be carried out in accordance with the Recruitment Regulations for the PhD school in the field of geophysics at the IGF PAS, as well as the Regulations for granting scholarships for young scientists in research projects and the regulations for granting scholarships for young scientists under doctoral scholarships, financed from the funds of the National Science Center , constituting an attachment to the announcement of the competition under SONATA BIS 7.

The scholarship committee reserves the right to conduct a conversation

with selected candidates. The decision of the scholarship commission can not be appealed.

APPLICATION

Supervisor: Assoc. Prof. Krzysztof Mizerski

tel.: +48 22 6915 904
e-mail: kamiz@igf.edu.pl

Description of tasks:

The task of the student will be to analyse numerically new mechanisms of generation of planetary and stellar magnetic fields, within the framework of the mean field theory. The mechanisms are based on interactions of distinct waves and through that formation of a large-scale electromotive force. Particularly effective are beating waves and nonlinear interactions. Both the linear limit of weak fields as well as the process of nonlinear saturation will be analysed. The aim of the project is the investigation of the mechanism of generation of large scale fields in nature (identified in Mizerski, Bajer & Moffatt, J. Fluid Mech. 707, 111, 2012) and their nonlinear evolution in systems with negligibly small magnetic diffusion.

Requirements:

1. Participant of the doctoral studies, working on the preparation of the doctoral dissertation in the field of mathematics, physics or engineering, preferably fluid dynamics.
2. Solid basis in the fields of mathematics and physics (candidates who graduated from physical and/or mathematical faculties are preferred).
3. Programming skills (e.g. C, FORTRAN, PYTHON etc.).

Experience in the fields of fluid dynamics and/or electrodynamics is greatly welcome.

Supervisor: Assoc. Prof. Krzysztof Mizerski

tel.: +48 22 6915 904
e-mail: kamiz@igf.edu.pl

Unit name: Institute of Geophysics, Polish Academy of Sciences, Department of Magnetism

Job title: Ph.D. student - scholar

Requirements:

1. Participant of the doctoral studies, working on the preparation of the doctoral dissertation in the field of mathematics, physics or engineering, preferably fluid dynamics.
2. Solid basis in the fields of mathematics and physics (candidates who graduated from physical and/or mathematical faculties are preferred).
3. Programming skills (e.g. C, FORTRAN, PYTHON etc.).
4. Experience in the fields of fluid dynamics and/or electrodynamics is greatly welcome.

Description of tasks:

The task of the student will be involve analysis of the so-called Magnetic Buoyancy Instability (MBI) and its relation to hydro-magnetic dynamo in the solar interior. The study will be concerned with a model of the solar tachocline – a region of large shear, where the Solar toroidal field is greatly amplified. The Ph.D. student will be required to do both, the theoretical and numerical analysis of the dynamical equations, that is the Navier-Stokes equation with the Lorentz force and the induction equation resulting from Maxwell’s and Ohm’s laws. The ultimate aim of the project is to establish the effective dynamical equations governing the magnetic field evolution in the Solar tachocline, based on the temporal and spatial scales introduced by the MBI.  The next step is to solve the derived set of equations via numerical methods, which would allow to model the time evolution of the Solar magnetic field.

Unit name: Institute of Geophysics, Polish Academy of Sciences, Department of Magnetism

Job title: Ph.D. student – scholar

City: Warsaw

Scientific discipline: Geophysics

Date of announcement: 18.06.2019

The deadline for submitting offers: 19.08.2019

Form of offers: by e-mail to the following address: studia.doktoranckie@igf.edu.pl

Requirements:

1. Participant of the doctoral studies, working on the preparation of the doctoral dissertation, concerning the analysis of the so-called MAC waves (Magnetic-Achimedean-Coriolis) generated in the Earth’s outer core by the buoyancy, magnetic and inertial forces.
2. Solid basis in the fields of mathematics and physics (candidates who graduated from physical and/or mathematical faculties are preferred).
3. Experience in analysing data sets in the form of time series.
4. Programming skills (e.g. C, FORTRAN, PYTHON etc.).
5. Additional experience in the fields of fluid dynamics and/or electrodynamics is greatly welcome.

Description of tasks:

The task of the student will be concerned with analysis of the so-called MAC waves (Magnetic-Achimedean-Coriolis) generated in the Earth’s outer core by the buoyancy, magnetic and inertial forces. The analysis will involve both, theoretical investigations of the Navier-Stokes equations with coupled Maxwell equations and numerical simulations of the dynamics of MAC waves, with application of a code written in C language of programming by the supervisor of the project, ready-for-use and tested. The interactions of MAC waves in the “Stratified Ocean” at the top of the liquid core are known to have a substantial effect on the dynamics of the geomagnetic field. The ultimate aim of the project is to establish the influence of the MAC waves on the geomagnetic dynamo and geomagnetic field oscillations.

Expected start: 01/10/2019.

Call: NCN: SONATA BIS 7 – ST3

Conditions of employment:

We offer:

1. Work in one of the leading research centers in Poland
2. Remuneration paid as a scholarship, in accordance with the REGULATIONS FOR AWARDING SCIENTIFIC SCHOLARS IN RESEARCH PROJECTS FINANCED FROM THE NATIONAL CENTER OF THE CENTER OF SCIENCE of October 27, 2016 https://www.ncn.gov.pl/sites/default/files/pliki/uchwaly-rady/2019/uchwala25_2019-zal1_ang.pdf
3. Research visits and international scientific conferences
4. Possibility to obtain a doctoral degree under the supervision of dr hab. Krzysztof Mizerski.

Additional information:

Required documents:

1. The application for a scholarship, in accordance with the formula provided in the announcement,

The scholarship application should be sent along with the documents required for admission to doctoral studies at the address given in the recruitment advertisement for the doctoral school.

In the title of the e-mail, select "SONATA BIS 7 - G24"

Additional information is provided by dr hab. Krzysztof Mizerski, prof. PAN: kamiz@igf.edu.pl

The candidate's decision and selection will take place by 30.10.2019 r. Candidates will be notified about the results by e-mail. The recruitment process will be carried out in accordance with the Recruitment Regulations for the PhD school in the field of geophysics at the IGF PAS, as well as the Regulations for granting scholarships for young scientists in research projects and the regulations for granting scholarships for young scientists under doctoral scholarships, financed from the funds of the National Science Center, constituting an attachment to the announcement of the competition under SONATA BIS 7.

The scholarship committee reserves the right to conduct a conversation with selected candidates. The decision of the scholarship commission can not be appealed.

APPLICATION

A solid base in mathematics and physics and optionally adequate programming skills are expected from the candidate.

Supervisor: Assoc. Prof. Wojciech Czuba

dr hab. Wojciech Czuba

tel.:+48 (22) 6915-782
e-mail: wojt@igf.edu.pl

A 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:

- completed 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
- work in unix/linux and MS Windows operating systems
- ability to organize work independently
- at least the basics of programming

Additional advantages:

- knowledge of Fortran or C++ programming language
- practical knowledge of seismic data processing systems (eg. Seismic Unix, PROMAX)
- knowledge of other foreign languages (especially Polish and Russian) 

Supervisor: Assoc. Prof. Grzegorz Lizurek

DR HAB. GRZEGORZ LIZUREK
e-mail: lizurek@igf.edu.pl

NON-DC COMPONENTS OF FULL MOMENT TENSOR SOLUTION AS AN ARTIFACT OF P AND S WAVE AMPLITUDE INVERSION. DETERMINING THE LIMITATION OF THE METHODOLOGY AND ATTEMPT OF METHOD DEVELOPMENT TOWARDS USING S WAVE AMPLITUDE,  EXTENDED SOURCE AND NEAR- AND INTERMEDIATE FIELD EQUATIONS.

• 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 with assumption of isotropic component of the moment tensor up to: 100%, 80%, 60%, 40%, 20%;
• Synthetic tests of focal sphere coverage influence on moment tensor inversion results for typical anthropogenic seismicity cases with assumption of CLVD component of the moment tensor up to: 100%, 80%, 60%, 40%, 20%;
• Synthetic tests of focal sphere coverage influence on moment tensor inversion results for typical anthropogenic seismicity cases with assumption of isotropic and CLVD components of the moment tensor up of:  80% vs 20%, 60% vs 40%, 40% vs 60%, 20% vs 80%, respectively;
• Synthetic tests of focal sphere coverage influence on moment tensor inversion results for typical anthropogenic seismicity cases with assumption of the following isotropic, CLVD and DC components ratio in the moment tensor solution:  60%/20%/20%, 40%/40%/20%, 20%/40%/40% etc.;
• Development of SV and SH amplitude moment tensor inversion as an extension of P amplitude method;
• Synthetic tests of focal sphere coverage influence on moment tensor inversion results, similar to P wave amplitude inversion;
• 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

Supervisor: Assoc. Prof. Grzegorz Lizurek

DR HAB. GRZEGORZ LIZUREK

e-mail: lizurek@igf.edu.pl
tel: +48 (22) 691 57 77

LOOKING FOR CHARACTERISTIC FOOTPRINTS IN SEISMIC PROCESS EVOLUTION AS THE TOOL IN DISCRIMINATION BETWEEN TECTONIC AND RESERVOIR TRIGGERED SEISMICITY.  MODELLING OF THE INFLUENCE OF MAN-INDUCED STRESS CHANGES  IN RELATION TO TECTONIC STRESS ORIENTATION AND SPATIO-TEMPORAL CLUSTERING OF SEISMICITY. 

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:

Master degree in geophysics or geology or physics.

Language: English writing and speaking necessary at scientific communication level.

Programming: Matlab (Octave) and/or Python ObsPy at least.

Supervisor: prof. Stanisław Lasocki

PROF. STANISŁAW LASOCKI 
e-mail: lasocki@igf.edu.pl
tel: +48 (12) 292 38 00

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.  The research in the framework of the proposed topic will concern the extension of the seismic hazard estimation methods onto the cases of non-Poissonian seismic processes and complex magnitude distributions and model-free estimation of epicenter distribution accounting for relations among the events. The modified methods will be applied to the anthropogenic seismicity data.

Requirements:

1. Master Degree in Earth Sciences or Physics
2. Good mathematical background
3. Basic knowledge of probability calculus and statistical mathematics
4. Computer programing skills (Matlab or R) at least at the level of the own codes development
5. Good command of English, at least a the level B2

The PhD student will work in an international team of the Department of Seismology  in Kraków in one of the international projects carried out in the department.

Supervisor: prof. Stanisław Lasocki

PROF. STANISŁAW LASOCKI 
e-mail: lasocki@igf.edu.pl
tel: +48 (12) 292 38 00

An earthquake is described by a set of source parameters eg.: 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 e.g. the atmospheric pressure or the injection volume rate in the case of injection induced seismicity. The transformation to equivalent dimensions transforms the initial set of parameter values of the events 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. The aim of these studies is to get insight into the relationships between technological operations and seismicity, and eventually managing the anthropogenic seismic hazard.

Requirements:

1. Master Degree in Earth Sciences or Physics
2. Good mathematical background
3. Basic knowledge of probability calculus and statistical mathematics
4. Computer programing skills (Matlab or R) at least at the level of the own codes development
5. Good command of English, at least a the level B2

The PhD student will work in an international team of the Department of Seismology  in Kraków in one of the international projects carried out in the department.

Supervisor: Assoc. Prof. Łukasz Rudziński

DR HAB. ŁUKASZ RUDZIŃSKI
e-mail: rudzin@igf.edu.pl
tel: +48 (12) 292 38 11

Seismicity induced by mining gives an opportunity to improve knowledge concerning physics of the seismic sources. The topic deals with the PhD position will be focused 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.

Requirements:

• Master degree in geophysics/physics/geology or a closely related disciplines.
• Language: English writing and speaking necessary at scientific communication level.
• The ideal candidate should be familiar with Python and/or Matlab (Octave) or other programing language.  

tel.: +48 22 6915 904
e-mail: kamiz@igf.edu.pl

The proposed research is on the dynamics of global atmospheric circulation with particular interest in tropics. PhD student will be using and developing mathematical models, which describe evolution of discrete solutions (waves) of Naviere – Stokes equations in the shallow water approximation as well as interactions between them. Other mathermatical models, including weak temperature gradient approximation, will also be used. The PhD student will be designing and running idealized numerical simulation using Open IFS model from European Center for Medium-Range Weather Forecasts. In order to validate theoretical results, the candidate will be also analyzing data from satellite measurements, ground based observations and numerical models (reanalysis).

Research will be conducted in the Atmospheric Physics Department of the IGF PAS in collaboration with Department of Magnetism. Dr hab. Krzysztof Mizerski, prof. PAS will serve as a mentor to the PhD stundent, the research will be performed in collaboration with Dr Dariusz Baranowski. This research will be conducted in international collaboration (e.g. Scripps Institution of Oceanography, University of California San Diego, US Naval Research Laboratory, University of East Anglia) embedded in an international programme Years of the Maritime Continent.

Proposal for project funding of a PhD position will be submitted in 2019 in an answer to a call from NCN.

Requirements:

• MSc diploma in physics, mathematic or informatics
• Knowledge of differential equations solutions techniques
• Knowledge of the basics of geophysical fluid dynamics or dynamics of the atmospheric and oceanic circulation
• Knowledge of scripting programming (Python, Matlab, IDL, NCL, R)
• English reading/writing/speaking at least at the level enabling understanding of scientific publications and interactions with international collaborators
• Experience with handling of atmospheric and/or oceanographic data would be an advantage

tel. + 48 22 6915 749 email: monika.kusiak@igf.edu.pl

The proposed research will be focused on accessory minerals, mainly monazite (CePO4) and zircon (ZrSiO4), their isotope characteristics and age determination for provenance studies. Another angle of the research will be Black Carbon Particles and their role as a climate forcing agent over Svalbard.

Candidate's profile:

1. Master's degree in geology (or similar)
2. Experience in laboratory and in the field work
3. Ability to think analytically and to formulate conclusions
4. Good knowledge of English language

tel. + 48 22 6915 749 email: monika.kusiak@igf.edu.pl

As zircon is the only mineral which survived 4 Ga, it is the one, naturally selected for detailed studies on early Earth rocks. Separated grains will be isotopically characterised: U-Pb to determine their age and its subsequent history, oxygen isotopes for determining the nature of the protolith and its potential derivation from a weather source, and Lu-Hf isotopes for the extraction age of that crust from the mantle. The same set of methodologies will be used for rocks and minerals from all proposed regions of work (northern Labrador, eastern Greenland and east Antarctica).

Candidate's profile:

1. Master's degree in geology (or similar)
2. Experience in laboratory and in the field work
3. Ability to think analytically and to formulate conclusions
4. Good knowledge of English language