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Alice-Agnes Gabriel

(Seismology)

Alice-Agnes Gabriel

Alice-Agnes Gabriel

Department of Earth and Environmental Sciences
Geophysics
Munich University
Theresienstr. 41
80333 Munich
Germany

Room: 416
Phone: +49 (89) 2180-4214
Fax: +49 (89) 2180-4205

E-Mail:

Research

I am leading the Earthquake Physics group within the Seismology chair of the Institute of Geophysics at LMU Munich. I am holding a position of Assistant Professor (akademischer Rat a.z.). We focus on understanding the physics of earthquakes using numerical models, theoretical analysis and observations from natural earthquakes and laboratory experiments. We study geophysical problems on a range of scales, from earthquake-tsunami interaction in subduction zones to fracture activation in geo-reservoirs. Our research is distinguished by large-scale earthquake scenarios of unforeseen degree of realism realised on some of the largest supercomputers worldwide. We work on modern software packages for earthquake simulations ("SeisSol" and "ExaHyPE") and manage large-scale infrastructure projects. I am committed to excellence in mentoring and teaching, as well as public outreach.

Follow me on twitter @inSeismoland

Our research interests:

  • Earthquake physics. Modeling and imaging of earthquake source dynamics, rock friction, structure and rheology of crustal fault zones
  • Seismic wave propagation High frequency wave fields, strong ground motion, seismic hazard assessment
  • Earthquake cycle and tsunami generation. Multidisciplinary approaches of earthquake scenario simulations in conjunction with geodynamic and tsunami modeling
  • Fracture mechanics. Analytical description of crack propagation, frictional failure and atomistic modeling
  • Numerical methods. Innovative algorithms for wave propagation and dynamic earthquake rupture
  • High Performance Computing. Scalable and flexible software solutions to run forward models and uncertainty quantification on modern High Performance Computing infrastructure

For recent contributions, preprints and publications of our group please see the 'News' and 'Publications' sections.

My personal publication impact is listed here


Group members:

  • PostDocs: Bo Li, Duo Li

  • PhD Students: Jorge Nicolas Hayek, Sara Aniko Wirp, Sebastian Anger, Taufiqurrahman, Thomas Ulrich

  • Alumni: Elizabeth H. (Betsy) Madden (-2018, now Foreign Professor at University of Brasilia, Brazil), Dr. Kenneth C. Duru (-2019, now MSI Fellow at ANU Canberra, Australia), Stephanie Wollherr (-2018, now at Daimler), Andrea Perez (-2019, now PhD student at GNS New Zealand), Mitchell Williams (-2019, now at KAUST), On Ki Angel Ling (-2018, now PhD student at ETH Zurich), Tomy Gunawan (-2018), Magdalena Perleth (-2018), Yongki Andita Aiman (-2018), Kilian Gessele (-2018), Ashim Rijal (-2017), Mirjam Weingärtner (-2016), Sujania Talavera Soza (-2016), Amaryllis Nerger (-2014), Behnam Tang Eysh (-2014), Christian Pelties (-2014, now at MunichRe)

Current projects :

  • 2019 “Truly Extended Earthquake Rupture (TEAR)”, ERC Starting Grant project to exploit novel mathematical and numerical models on how diffuse fault zones slip throughout the seismic cycle and across length scales from laboratory to subduction zones.

  • 2019 “The Physics of Intraplate Earthquakes in Brazil (BayLat)”, collaboration with Prof. E. Madden, University of Brasilia.

  • 2018–2021 “Centre of Excellence for Exascale in Solid Earth (ChEESE)", European Horizon 2020 funded project to establish a Center of Excellence at Barcelona Supercomputing Centre for Exascale supercomputing for Solid Earth.

  • 2018–2021 “Fracture activation in geo-reservoirs - physics of (induced) earthquakes in complex fault networks (FRAGEN)", Competitive Research Grant ("CRG") with the King Abdullah University of Science and Technology (KAUST) to study natural or man-made fracture activation using seismic data analysis and physics-based earthquake simulations on high-performance computing infrastructure.

  • 2018–2020 “Bayesian inference of earthquake source parameters: kinematic and dynamic finite fault models (BAIES)". Joint German (DFG) and Czech (GACR) Science Foundation funded collaboration with Charles University Prague for developing dynamic earthquake source inversion methods.

  • 2018-2020 “SeisSol as a Community Code for Reproducible Computational Seismology (CoCoReCS)" . German Science Foundation (DFG) funded initiative for reproducible software development together with Technical University Munich (TUM) and Leibniz Supercomputing Centre (LRZ).

  • 2017-2020 “Interdisciplinary earthquake hazard research in Gulf of Aqaba and Strait of Tiran (GAST)". Competitive Research Grant (CRG) with KAUST, IPG Paris, METU Ankara, U. of Strasbourg and U. of Versailles for improving knowledge of active faults in the GAST region and its overall tectonics.

  • 2016-2020 “KONWIHR - NewWave". New Roads for Computational Wave Propagation funded by the Competence Network for Technical, Scientific High Performance Computing in Bavaria (www.http://www.konwihr. uni-erlangen.de/about-konwihr.shtml).

Past projects :

  • 2015-2019 “ExaHyPE - An Exascale Hyperbolic PDE Engine”, ("http://exahype.eu" European Horizon 2020 funded project to develop a novel simulation engine for hyperbolic PDE problems at exascale high performance computing infrastructure.

  • 2016-2018 “Computational Seismology - HPC access at Leibniz Supercomputing Centre", 33,300,000 CPU hours of high-performance computing time at Leibniz Supercomputing Centre (www.lrz.de/english/) to support research projects in earthquake physics, observational seismology and new numerical methods at LMU Munich and with international collaborators.
  • 2013-2020 “A Collaborative Project: Rupture Dynamics, Validation of the Numerical Simulation Method", Large international benchmark efforts for modelling and understanding earthquake physics funded by the Southern California Earthquake Center (SCEC, http://scecdata.usc.edu/ cvws/).

  • 2012-2019 “ASCETE - Advanced Simulation of Coupled Earthquake and Tsunami Events”, www.ascete.de. Volkswagen Foundation funded project for coupled simulation technologies of subduction geodynamics, earthquake rupture dynamics and tsunami propagation to understand the fundamental conditions of tsunami generation.

  • 2016-2019 “KONWIHR - GeoPF", Computational seismology applications in the Competence Network for Technical, Scientific High Performance Computing in Bavaria.

  • 2013-2017 “Computational Earthquake Dynamics In Thick Fault Zones”, BaCaTeC ( http://www.bacatec.de/en/) funded collaboration with J.-P. Ampuero, Caltech and Y. Huang, Stanford University.

  • 2014-2016 “GeoTutor”, Principal Investigator & Coordinator, Teaching improvement project for enhanced acquisition of practical skills in geo-software funded by LMU Center of Leadership and People Management (http://www.en.peoplemanagement.uni-muenchen.de/).

  • 2014-2015 “High-performance Computing of Earthquake Dynamics on Natural Fault Structures”, Principal Investigator & Coordinator, BaCaTeC funded collaboration with G. Ely, USC.

  • 2013--2015 Integrated projects, in international scientific and industrial collaboration, e.g. “Petascale High Order Dynamic Rupture Earthquake Simulations on Heterogeneous Supercomputers” (Intel, TUM, LMU) “Earthquake Rupture Dynamics using SeisSol & SORD: A Comparative Study” (IBM Research, KAUST, USC, LMU), “QUantitative estimation of Earth’s seismic sources and STructure” (QUEST).

  • 2012 “Near-Source Shaking and Dynamic Rupture in Plastic Media" , Specific Funding from Pacific Gas & Electric (PG&E) related to my Ph.D. studies.



    Previous scientific accomplishments:

    My post-doctoral research focused on the development and application of the software package SeisSol for the simulation of realistic strong ground motions as well as for fundamental earthquake physics with dynamic rupture sources based on non-linear friction laws. SeisSol recently reached performance beyond the “magical” one petaflop/s mark

    SeisSol is a high-order accurate Discontinuous Galerkin method implemented on unstructured meshes to solve forward wave propagation problems in realistic media with complex geometry. The project was integrated in the existing European-wide training network ‘QUantitative estimation of Earth’s seismic sources and STructure’ (QUEST) and ‘Advanced Simulation of Coupled Earthquake and Tsunami Events’ (ASCETE).

    I conducted my PhD studies at the Swiss Seismological Service at ETH Zurich, Switzerland collaborating closely with Caltech, USA and KAUST, Saudi Arabia. My main interest was earthquake source physics and fracture mechanics: In which ways will a dynamic earthquake rupture interact with damage surrounding a fault zone? I analyzed a large set of spontaneous earthquake rupture simulations from computational spectral element methods, specifically dynamic rupture styles and their transitions in elastic media and including off-fault damage.

    I am also interested in theoretical material science. I was working on atomistic simulations of solid-phase epitaxial regrowth of amorphous germanium at the Institute of Ion Beam Physics and Materials Research at the Helmholtz Zentrum Dresden-Rossendorf.

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Printed 15. Dec 2019 03:01