Johana Brokešová

 

Department of Geophysics

Faculty of Mathematics and Physics

Charles University, Prague

 

Mail address:  KG MFF UK,

                            V Holesovickach 2

                            180 00 Praha 8

                             Czech Republic

 

E-mail:

 

 

 

Areas of expertise:

 

·         Seismic wave propagation in complex laterally varying media: asymptotic high- frequency methods, 2.5D and 3D modeling

·         Finite extent source simulations: seismic wave fields due to complex sources in complex media

·         Rotational seismic motions: modeling and observation

 

Education and degrees:

 

Graduated from Charles University, Prague, in Geophysics (degree equivalent to MSc, 1986)

Thesis title: Computation of seismic wave fields due to a point source and a finite extent source by Gaussian beam method (Supervisor: Prof. RNDr. V. Červený, DrSc.)

 

RNDr. degree, Charles University, Prague, in Physics (1986)

 

Graduated Magna Cum Laude, Charles University, Prague (1986)

 

CSc degree (equivalent to PhD,1994), Charles University, Prague, in Geophysics

 Thesis title: High-frequency ground motions due to extended seismic sources in complex structures (Supervisor: Prof. RNDr. V. Červený, DrSc.)

 

Employment:

 

Full-time employment

  Charles University, Faculty of Mathematics and Physics, Department of Geophysics, continuously from 1986

1986 - 1987:                   Posgraduate Fellowship

1987 - 1994:                   PhD studies

1994 -  2005:                  Assistant Professor

2005 -  present:            Research Associate

 

Part-time employment

Institute of Rock Structure and Mechanics, Academy of Sciences  of the Czech Republic

        2001 - present:             Research Associate

 

Teaching:

 

Regular courses:  Seismic wave propagation (since 2000)

Fourier Spectral Analysis (since 1992)

Seismic ray method (since 1997)

   

Optional lecture:  Kinematic modeling of extended seismic sources  (since 1996)

 

Master thesis supervised:

 

Kouba, D.  Influence of apsorption on the ray wavefield with respect to applicability in interpretation of reflection measurements. Master Thesis, Charles University, Prague, defended in 1999.

 

Gallovic, F.  High-frequency strong motion synthesis for k-2 rupture models. Master Thesis, Charles University, Prague, defended in 2002

 

PhD theses supervised:

 

Gallovič, F. Kinematic modelling of strong ground motions, PhD Thesis, Charles University, Prague, defended in 2006.

 

Kolínský, P. Regional and local tomography using body and surface waves, PhD Thesis, Charles Univ., Prague

 

Research project participation (last 10 years):

1993 – present: Consortium project  Seismic Waves in Complex 3-D Structures, sponsored by major oil companies from Europe and overseas (co-ordinator V. Cerveny, Prague, Czech Republic)

1996 -- 1998 Source parameters retrieval from local seismicity sponsored by Grant Agency of the Academy of Sciences of the Czech Republic (co-ordinator J.  Sileny, Prague, Czech Republic)

 

1997-1999: "Constructing Major Earthquakes: Microearthquake Ruptures and Green's Functions in the Western Gulf of Corinth Greece" (EC IncoCopernicus, COME, co-ordinated by G-A. Tselentis, Patras, Greece).

 

1997-1999: "Towards an Integrated Strong Motion Modelling: Comparison of Source Path and Site Effects on the Example of EUROSEISTEST Data"(EC IncoCopernicus, ISMOD, co-ordinated by P.-Y. Bard, Grenoble, France).

 

2000-2001: "Understanding Earthquakes in Western Greece" (NATO Collaborative Linkage grant, co-ordinated by G-A. Tselentis, Patras, Greece).

 

2000-2003: "Towards Practical, Real-time Estimation of Spatial Aftershocks Probabilities: a Feasibility Study in Earthquake Hazard" (EC 5th framework EESD, PRESAP, co-ordinated by J. McCloskey, Univ. of Ulster).

 

2003-2005: "Prague Centre of Mathematical Gephysics, Meteorology, and Their Applications" (EC 6th framework, MAGMA, co-ordinated by J. Zahradník, Prague, Czech Republic)

 

Research project supervised:

 

2004-2007: "Seismic Wave Propagation and Imaging in Complex Media: a European Network" (EC 6th framework ,SPICE, co-ordinated by H. Igel, Munich, Germany)

 

2005-2006:” Shaking scenarios and damage testification in priority and/or strategic areas of interest ” (Billateral Italian-Czech project, co-ordinators A. Emolo, University of Naples and J. Brokesova, Charles Univ.  Prague)

 

2007-2008: "Sensor of rotational movement around vertical axis for seismic measurements" (Grant Agency of the Czech Republic, co-ordinated by J. Strunc, IRSM CAS CZ and J. Brokesova, Charles Univ., Prague)

 

Seminars:

 

Asymptotic Ray Theory In Seismology

 

Rotational Components of Seismic Motions

 

Selected publications:

 

Brokešová, J. (1990). Seismic rays and amplitudes in 2.5-dimensional modelling, Research Report No. 87, Department of Geophysics, Charles Univ., Written for Arco Oil and Gas Co., Plano, Texas, U.S.A.

Brokešová, J. (1993). High-frequency ground motions due to extended seismic sources in complex structures, PhD Thesis, Charles Univ., Prague

Brokešová, J. (1996a). Construction of ray synthetic seismograms using interpolation of travel times and ray amplitudes, Special Issue: Seismic Waves in Laterally Inhomogeneous media, Part II, Pure and Appl. Geophys., 148, 503-538

Brokešová, J. (1996b). Interpolation of travel times and amplitudes, In: Seismic waves in complex 3D structures, Research Report No. 4, Department of Geophysics, Charles Univ., 151-181

Brokešová, J., Zahradník, J., Paraskevopoulos, P. (2000). Ray and finite-difference modelling in CDP seismic sections for shallow lignite deposits, Journal of Applied Geophysics, 45, 261-272

Brokešová, J. (2001). Reflection/transmission coefficients at a plane interface in dissipative and nondissipative media: A comparison, Journal of Computational Acoustics, 9, No. 2, 623-642

Brokešová, J., Červený, V. (2001): Energy conservation equations and interaction contributions at a structural interface between two dissipative media. Numerical experiments. In: Seismic Waves in Complex 3-D Structures, Report 11, pp. 315 – 336, Department of Geophys., Charles Univ., Prague

Brokešová, J., Červený, V. (2002a): The viscoelastic reflection/transmission problem for general orientation of propagagation and attenuation vectors. In: Seismic Waves in Complex 3-D Structures, Report 12, pp. 213 – 239, Department of Geophys., Charles Univ., Prague

Brokešová, J.,Červený, V.(2002b):The viscoelastic reflection/transmisssion problem for general orientation of propagagation and attenuation vectors.  Extended Abstracts of 64th EAGE Conference  (Florence), P243

Opršal, I., Brokešová, J., Faeh, D., Giardini, D. (2002). 3D Hybrid Ray-FD and DWN-FD Seismic Modeling For Simple Models Containing Complex Local Structures, Stud. Geophys. Geod., 46, 711-730

Málek, J., Brokešová, J. (2003). Seismic event location in the vicinity of the underground gas storage Háje-Příbram, Acta Montana, No. 22 (129), 65 – 73

 

Gallovič, F., Brokešová, J. (2004a). On strong ground motion synthesis with k-2 slip distributions,  J. Seismology  8, 211-224.

 

Gallovič, F., Brokešová, J. (2004b). The k-2 rupture model parametric study: example of the 1999 Athens earthquake, Studia geoph. et geod. 48, 589-613

 

Brokešová, J (2006) , Asymptotic ray  method in seismology: A tutorial,  Praha, Matfyzpress

 

Brokešová, J., Červený, V. (2006):  The viscoelastic reflection/transmisssion problem for general orientation of propagagation and attenuation vectors, Journal of Computational Acoustics (submitted)

Kolínský, P., Brokešová, J. (2006): The Western Bohemia Uppermost Crust Shear Wave Velocities from Love Wave Dispersion, J. Seismology 11, 101-120.

Gallovič, F., Brokešová, J. (2006). Probabilistic Aftershock Hazard Assessment: Numerical Testing of Certain Methodological Features,  J. Seismology (submitted).

Gallovič, F., Brokešová, J. (2007). Hybrid k-squared Source Model for Strong Ground Motion Simulations: an Introduction,  Phys. Earth Planet. Interiors 160, 34-50.

 

Conference presentations (last 10 years):

1997 IASPEI 29th General Assembly, Thessaloniki, Greece: Brokesova, J., Ray and Finite-Difference Wave Field Simulations for Shallow Structures (poster)

1999 ICTCA´99, Trieste, Italy:  Brokešová, J., Reflection-transmission coefficients at a plane interface in dissipative and non-dissipative media: comparison (oral)

2000 Workshop Meeting on Seismic Waves in Laterally Inhomogeneous Media V, Castle of Zahrádky, Czech Republic: Brokešová, J., Reflection/transmission coefficients at viscoelastic transition layers (oral)

2001 AGU Fall Meeting, San Francisco, California:  Opršal, I., Brokešová, J., Giardini, D., Efficient 3D hybrid ray-FD modelling for elastic media with locally complex structures (poster)

2001 PRESAP Meeting,, September, Prague, Czech Republic: Gallovič, F., Brokešová, J., K^-2 Stochastic Modelling  of her Athens 1999 Earthquake Using Ray Theory (oral)

2002 64th EAGE Conference, Florence, Italy: Brokešová, J., Červený, V., The viscoelastic reflection/transmisssion problem for general orientation of propagagation and attenuation vectors (poster)

2002 XXVII EGU General Assembly, Nice, France: Gallovič, F., Brokešová, J., Methodical aspects of the k^-2 kinematic source modelling  (poster)

2002 PRESAP Meeting,, September, Paris, France: Gallovič, F., Brokešová, J., Kinematic strong-motion modelling (oral)

2002 PRESAP Meeting, September, Paris, France: Burjánek, J., Zahradník, J. Gallovič, F., Brokešová, J., Comparison of three modelling methods on the Colfiorito event (oral)

2002 PRESAP Meeting, September, Paris, France: Opršal, I., Brokešová, J., Fäh, D., Giardini, D., Fast 3D hybrid seismic modelling: Ray-FD approach for elastic models with locally complex structures (poster)

2002 XXVII EGU General Assembly, Nice, France: Opršal, I., Brokešová, J., Fäh, D., Giardini, D., Fast 3D hybrid seismic modelling: Ray-FD approach for elastic models with locally complex structures. (poster)

2002 XXVIII ESC General Assembly, Janov, Italy: Opršal, I., Brokešová, J., Fäh, D., Giardini, D., 3D hybrid seismic modelling” Ray-FD or DWN-FD approach for elastic models with locally complex structures (poster)

2003 AGU 2003 Fall Meeting, San Francisco, USA: Gallovic,  F., Brokesová,  J., Irikura, K., Seismic Hazard Assessment for Large Aftershocks (poster)

2003 EGS-AGU-EGU Joint Assembly, Nice, France and at IUGG, Sapporo, Japan: Gallovic, F., Brokešová, J. , Burjánek, J., Zahradník, J., Directivity in Kinematic and Composite source models (poster)

2003 EGS-AGU-EGU Joint Assembly, Nice, France and at IUGG, Sapporo, Japan: Gallovic, F., Brokešová, J., Finite-Extent k-2 Kinematic Source Modeling: the 1999 Athens Earthquake Strong-Motion Accelerograms (poster)

2004 XXIX ESC General Assembly, Potsdam, Germany: Gallovic, F., Brokesova, J.,  A k-squared Composite Source Model: Hybrid Description of Comlex Faulting (poster)

 

2004 EGU 1st General Assembly, Nice , France:  Malek, J., Brokesova J., Anisotropy of the uppermost crust in the region Ohre/Eger rift (Czech Republic) (oral)

 

2004, Czecho-Slovak Seismological Days, September, Smolenice, Slovakia: Gallovič, F., Brokešová, J., Hybrid combination of kinematic integral and composite source model (oral)

 

2005 SPICE Local Scale TG Meeting, April, Zurich, Switzerland: Gallovič, F., Brokešová, J., Kinematic strong ground-motion modeling by the hybrid k-squared source model (oral)

 

2005 AGU 2005 Fall Meeting, San Francisco, USA: Gallovic,  F., Brokesová,  J., Numerical Testing of Certain Features of Probabilistic Aftershock Hazard Assessment (poster)

2005 SPICE R&T Workshop II, September 4-10, Smolenice, Slovakia, Brokesová,  J., Asymptotic Ray Theory in Seismology (oral)