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  1. ASPECT Jupyter Notebooks

    12 Oct 2023 | Contributor(s): Rene Gassmoeller

    Contains ASPECT Jupyter notebooks

  2. ASPECT Virtual Desktop

    27 Jun 2023 | Software: Launch | Contributor(s): Rene Gassmoeller, Lorraine Hwang, Mohamed Gouiza

    A preinstalled ASPECT environment.

  3. Fault strength evolution during the seismic cycle: Insights from the laboratory

    10 Mar 2023 | Webinars | Contributor(s): John Bedford

    Geophysical evidence suggests that some faults are frictionally strong, in agreement with laboratory measurements of quasi-static frictional strength (μ ≈ 0.6-0.8) for many crustal materials; whereas others studies have found that some faults are weak when compared to laboratory friction...

  4. ASPECT Hackathon 2022 Report

    23 Jun 2022 | Workshops | Contributor(s): Organizing Committee

    2022 ASPECT Hackathon Dates: May 15-24, 2022 Location: Cody, Wyoming

  5. ASPECT Hackathon 2021 Report

    23 Jun 2022 | Workshops | Contributor(s): Organizing Commitee

    2021 ASPECT Hackathon Dates: Tuesday July 6 - Friday July 16 Location: Virtual

  6. 2022 Mainshock and aftershock sequence simulations in a nonplanar fault network

    19 May 2022 | Webinars | Contributor(s): So Ozawa, Ryosuke Ando

    Aftershocks seem to be located along the trace of the mainshock fault; however, due to the location error, we do not know their exact location relative to the mainshock fault. Here, we hypothesize that most aftershocks occur on small subsidiary faults instead of the mainshock fault, and they...

  7. 2022 Poroelastic Implementation in PyLith: Gateway to Multiphysics

    13 May 2022 | Webinars | Contributor(s): Robert L Walker

    Thursday May 12, 2022 @ 2P PDT Poroelastic Implementation in PyLith: Gateway to Multiphysics Robert Walker, SUNY Buffalo PyLith, a community, open-source code (https://geodynamics.org/resources/pylith) for modeling quasi-static and dynamic crustal deformation with an emphasis on earthquake...

  8. 2022 Energy transfer among flow and magnetic fields with different equatorial symmetry during the dipole reversal in a geodynamo simulation

    17 Feb 2022 | Webinars | Contributor(s): Takumi Kera, Hiroaki Matsui, Masaki Matsushima, Yuto Katoh

    The geomagnetic field has reversed its polarity, and some numerical dynamos have suggested that anti-symmetric flow with respect to the equator plays a role in reversals. Olson et al., (2004) suggested that the equatorial antisymmetric flow is temporarily strengthened, and transports a locally...

  9. 2021 SMOREs Introduction

    02 Nov 2021 | Webinars | Contributor(s): John Naliboff

    2021 SMOREs ShowcaseJohn Naliboff, New Mexico Tech

  10. 2021 Interactions between Lithospheric Instabilities and Formation of Mantle Plumes in Venus

    02 Nov 2021 | Webinars | Contributor(s): Hiva Mohammadzadeh

    2021 SMOREs ShowcaseHiva Mohammadzadeh, Los Angeles Pierce College

  11. 2021 Early Earth Influence of Radiogenic Heating on Mid-Ocean Ridge Depths and Seafloor Subsidence

    02 Nov 2021 | Webinars | Contributor(s): Keneni Godana

    2021 SMOREs ShowcaseKeneni Godana, University of Illinois at Chicago

  12. 2021 Bayesian Uncertainty Quantification of Subduction Zone Rheology from the Geoid

    02 Nov 2021 | Webinars | Contributor(s): Elena Ehrlich

    2021 SMOREs ShowcaseElena Ehrlich, North Carolina State University

  13. 2021 As Above So Below: A Simulation of the Continental Lithosphere and LLSVPs as Thermal Insulators Using ASPECT

    02 Nov 2021 | Webinars | Contributor(s): Dante Hickey

    2021 SMOREs ShowcaseDante Hickey, Reed College

  14. ASPECT

    31 Oct 2021 | Software: Download | Contributor(s): Wolfgang Bangerth, Juliane Dannberg, Menno Fraters, Rene Gassmoeller, Anne Glerum, Timo Heister, Robert Myhill, John Naliboff

    A finite element parallel code to simulate problems in thermal convection in both 2D and 3D models.ASPECT is a code to simulate problems in thermal convection. Its primary focus is on the simulation of processes in the earth's mantle, but its design is more general than that. The primary...

  15. 2020 Numerical models of lower crustal flow explain Yellowstone's "tectonic parabola"

    07 Oct 2021 | Webinars | Contributor(s): Jonathan Perry-Houts

    Several hypotheses exist for the origin of the seismically active region of high topography surrounding the Yellowstone hotspot track. Among these is the idea that a dense mid-crustal sill has driven viscous lower crust away from the hotspot track, producing crustal thinning/subsidence in the...

  16. ASPECT Hackathon 2018 Final report

    06 Apr 2021 | Workshops | Contributor(s): Organizing Committee

    ASPECT Hackathon 2018 Final report. June 18-28, 2018. 

  17. ASPECT Hackathon 2020 Report

    03 Apr 2021 | Workshops | Contributor(s): Organizing Committee

    ASPECT Hackathon 2020 Report. August 3-7, 10-14, 2020. 

  18. ASPECT Hackathon 2016 Final Report

    01 Apr 2021 | Workshops | Contributor(s): Organizing Committee

    ASPECT Hackathon 2016 Final Report. June 24-July 2, 2016. 

  19. 2007 CIG/SPICE/IRIS Workshop Program and Abstracts

    30 Mar 2021 | Workshops | Contributor(s): Organizing Committee

    2007 CIG/SPICE/IRIS Workshop Program and Abstracts. October 9-11, 2007. 

  20. ASPECT Hackathon 2019 Preliminary Report

    29 Mar 2021 | Workshops | Contributor(s): Organizing Committee

    ASPECT Hackathon 2019 Preliminary Report. May 21-June 1, 2019. 

  21. ASPECT 2020 Virtual User Meeting Log

    29 Mar 2021 | Workshops | Contributor(s): Organizing Committee

    ASPECT 2020 Virtual User Meeting Log. January 21-23, 2020. 

  22. Overview of the High-Order ADER-DG Method for Numerical Seismology

    18 Feb 2021 | Workshops | Contributor(s): Martin Käser, Michael Dumbser, Josep de la Puente, Verena Hermann, Cristobal Castro

    Overview of the High-Order ADER-DG Method for Numerical Seismology. October 9-11, 2007. Martin Käser, Michael Dumbser, Josep de la Puente, Verena Hermann, Cristobal Castro.

  23. Rayleigh and Love wave tomography of the western United States from ambient seismic noise using US Array

    17 Feb 2021 | Workshops | Contributor(s): Fan-Chi Lin, Morgan Moschetti, Michael Ritzwoller

    Rayleigh and Love wave tomography of the western United States from ambient seismic noise using US Array. October 9-11, 2007. Fan-Chi Lin, Morgan P. Moschetti, and Michael H. Ritzwoller. 

  24. CIG Geodynamics Software: Modeling Tools for the Earth Science Community

    17 Feb 2021 | Workshops | Contributor(s): Eh Tan

    CIG Geodynamics Software: Modeling Tools for the Earth Science Community. October 9-11, 2007. Eh Tan. 

  25. SPECFEM3D_GLOBE

    17 Feb 2021 | Workshops | Contributor(s): David Michéa

    SPECFEM3D_GLOBE. October 9-11, 2007. David Michéa. 

  26. Synthetic seismograms for stagnant slab model

    17 Feb 2021 | Workshops | Contributor(s): Seiji Tsuboi, H. Sugioka, M. Obayashi, Y. Fukao, Yuan Gao

    Synthetic seismograms for stagnant slab model. October 9-11, 2007. Seiji Tsuboi, H. Sugioka, M. Obayashi, Y. Fukao, Yuan Gao.

  27. ShakeOut and its effects in Los Angeles and Oxnard areas

    17 Feb 2021 | Workshops | Contributor(s): Leonardo Ramirez-Guzman, Ricardo Taborda, Julio López, John Urbanic, Jacobo Bielak, David O'Hallaron

    ShakeOut and its effects in Los Angeles and Oxnard areas. October 9-11, 2007. Leonardo Ramírez-Guzmán, Ricardo Taborda, Julio López, John Urbanic, Jacobo Bielak and David O’Hallaron. 

  28. Wave Propagation Project (WPP): A New Open-Source Tool Supporting Computational Seismology at LLNL

    17 Feb 2021 | Workshops | Contributor(s): Arthur Rodgers

    Wave Propagation Project (WPP): A New Open-Source Tool Supporting Computational Seismology at LLNL. October 9-11, 2007. Arthur Rodgers. 

  29. Accuracy of Spectral Element Methods for Wave Propagation Modeling

    17 Feb 2021 | Workshops | Contributor(s): Saulo P. Oliveira, Géza Seriani

    Accuracy of Spectral Element Methods for Wave Propagation Modeling. October 9-11, 2007. Saulo P. Oliveira and Géza Seriani. 

  30. Constructing 3D Sensitivity Kernels and Working Towards 3D Tomographic Inversions Based upon Adjoint Methods

    17 Feb 2021 | Workshops | Contributor(s): Qinya Liu, Jeroen Tromp, Carl Tape, Alessia Maggi, Urska Manners, Guy Masters

    Constructing 3D Sensitivity Kernels and Working Towards 3D Tomographic Inversions Based upon Adjoint Methods. October 9-11, 2007. Qinya Liu, Jeroen Tromp, Carl Tape, Alessia Maggi, Urska Manners, Guy Masters.

  31. Numerical Modeling of Physical Processes occuring during the Spontaneous Propagation of 3-D Earthquake Ruptures.

    17 Feb 2021 | Workshops | Contributor(s): Andrea Bizzarri

    Numerical Modeling of Physical Processes occuring during the Spontaneous Propagation of 3-D Earthquake Ruptures. October 9-11, 2007. Andrea Bizzarri.

  32. Broadband Ground Motion Simulations for a Mw 7.8 Southern San Andreas Earthquake: Shake Out

    17 Feb 2021 | Workshops | Contributor(s): Robert Graves, Brad Aagaard, Ken Hudnut

    Broadband Ground Motion Simulations for a Mw 7.8 Southern San Andreas Earthquake: Shake Out. October 9-11, 2007. Robert W. Graves, Brad Aagaard, Ken Hudnut.

  33. Multi-scale issues and two scale homogenization solutions for the direct and inverse problem in seismology.

    14 Feb 2021 | Workshops | Contributor(s): Y. Capdeville, L. Guillot, J. J. Marigo

    Multi-scale issues and two scale homogenization solutions for the direct and inverse problem in seismology. October 9-11, 2007. Y. Capdeville, L. Guillot, J.J. Marigo.

  34. CIG Science Gateways: Using Supercomputers through a Browser

    14 Feb 2021 | Workshops | Contributor(s): L. Strand, Y. Kim, J. Tromp, D. Komantitsch, C. Tape, W. Mei, P. Olson, L. Armendariz, S. Kientz

    CIG Science Gateways: Using Supercomputers through a Browser. October 9-11, 2007. L. Strand, Y. Kim, J. Tromp, D. Komantitsch, C. Tape, W. Mei, P. Olson, L. Armendariz, S. Kientz.

  35. Octrees in Computational Seismology

    14 Feb 2021 | Workshops | Contributor(s): David O’Hallaron

    Octrees in Computational Seismology. October 9-11, 2007. David O’Hallaron. 

  36. CUBIT and seismic wave propagation based upon the Spectral-Element Method

    14 Feb 2021 | Workshops | Contributor(s): E. Casarotti, M. Stupazzini, S.J. Lee, D. Komatitsch, A. Piersanti, J. Tromp.

    GEOCUBIT - CUBIT and seismic wave propagation based upon the Spectral-Element Method: An advanced unstructured mesher for complex 3D geological media. October 9-11, 2007. E. Casarotti, M. Stupazzini, S.J. Lee, D. Komatitsch, A. Piersanti, J. Tromp.

  37. Finite-frequency sensitivity of seismic observables to mantle anisotropy based upon adjoint methods

    14 Feb 2021 | Workshops | Contributor(s): Anne Sieminski, Qinya Liu, Jeannot Trampert, Jeroen Tromp

    Finite-frequency sensitivity of seismic observables to mantle anisotropy based upon adjoint methods. October 9-11, 2007. Anne Sieminski, Qinya Liu, Jeannot Trampert, Jeroen Tromp.

  38. Ground Motion Modeling of the 1906 Earthquake and Other Large Events on the Northern San Andreas Fault

    14 Feb 2021 | Workshops | Contributor(s): Brad Aagaard, Thomas Brocher, David Dolenc, Douglas Dreger, Robert Graves, Stephen Harmsen, Stephen Hartzell, Mary Lou Zoback

    Ground Motion Modeling of the 1906 Earthquake and Other Large Events on the Northern San Andreas Fault. October 9-11, 2007. Brad Aagaard, Thomas Brocher, David Dolenc, Douglas Dreger, Robert Graves, Stephen Harmsen, Stephen Hartzell, Mary Lou...

  39. A Finite-Element Code for Modeling Quasi-Static and Dynamic Crustal Deformation

    14 Feb 2021 | Workshops | Contributor(s): Brad Aagaard, Charles Williams, Matt Knepley, Leif Strand, Sue Kientz

    A Finite-Element Code for Modeling Quasi-Static and Dynamic Crustal Deformation. October 9-11, 2007. Brad Aagaard, Charles Williams, Matt Knepley, Leif Strand, Sue Kientz.

  40. 2019 The Release of the GEM Global Active Faults Database and Global Seismic Hazard Map

    04 Feb 2021 | Webinars | Contributor(s): Richard Styron

    In late 2018, the Global Earthquake Model Foundation (GEM) released the initial version of several major products relating to seismic hazard and risk, including the Global Seismic Hazard Map, the Global Seismic Risk Map, and the Global Active Faults Database. Though these are intended primarily...

  41. 2019 HeFESTO: A tool for exploring Earth's physical properties and their effects on mantle dynamics

    04 Feb 2021 | Webinars | Contributor(s): Carolina Lithgow-Bertelloni, Lars Stixrude

    The minerals that exist at the extreme pressure and temperature conditions of the mantle and their physical properties determine the dynamics of the mantle. Both are also critical for comparison with seismic observations that put constraints on our knowledge of mantle structure and...

  42. 2019 Introduction to Quagmire

    04 Feb 2021 | Webinars | Contributor(s): Louis Moresi, Ben Mather, Romain Beucher

    Quagmire is an open source, parallel python module for modelling surface processes and landscape evolution. It comes from the Underworld geodynamics group and has many common design patterns to Underworld. For starters, this is not an out-of-the-box landscape evolution code — it is instead...

  43. 2018 Introduction to thermal-mechanical lithosphere models with surface processes

    04 Feb 2021 | Webinars | Contributor(s): Louis Moresi, Romain Beucher

    Surface processes including erosion, transport and sedimentation have the potential to strongly influence crustal and lithospheric deformation whether passively, through isostatic response, or more actively by affecting the thermal structure, the potential energy field, and / or the local stress...

  44. 2018 Pythonic Geodynamics

    04 Feb 2021 | Webinars | Contributor(s): Gabriele Morra, David A. Yuen, Sang-Mook Lee

    Students and young researchers who want to learn to use computational tools for geodynamic modeling have the option to choose among a wide range of numerical tools. I will show how Python and its libraries represent an easy-to-use platform for self-learning, with performance close to compiled...

  45. 2017 Geodynamic modeling with staggered finite differences and marker in cell: theory, teaching and examples

    04 Feb 2021 | Webinars | Contributor(s): Taras Gerya

    Numerical modeling of geodynamic processes is an essential approach in both science and industry with ever- growing demand and high efficiency/cost ratio. Current trend in geodynamic modeling is to develop universal approaches with potentially unlimited number of applications. One simple...

  46. 2017 Introduction to the spectral-infinite-element method

    04 Feb 2021 | Webinars | Contributor(s): Hom Nath Gharti, Jeroen Tromp

    The governing equations for the elastic-gravitational deformation of an Earth model involve a perturbed gravitational potential. The gravitational potential is governed by Poisson’s equation inside the Earth and by Laplace’s equation in the rest of space. The infinite domain...

  47. 2016 Software Practices in Computational Science Communities – an Overview

    04 Feb 2021 | Webinars | Contributor(s): Anshu Dubey

    Scientific code developers typically adopt software processes derived from the mainstream (non-scientific) community when continuing without them becomes impractical. However, many software best practices need modification and/or customization, partly because the codes are used for...

  48. 2016 Resolution analysis by random probing

    04 Feb 2021 | Webinars | Contributor(s): Andreas Fichtner, Tristan van Leeuwen

    We present a new method for resolution analysis in tomography, based on stochastic probing of the Hessian or resolution operators. Key properties of the method are (i) low algorithmic complexity and easy implementation, (ii) applicability to any tomographic technique, including full-waveform...

  49. 2016 Statistical and computational challenges of constraining greenhouse gas budgets

    04 Feb 2021 | Webinars | Contributor(s): Anna M. Michalak

    Predicting future changes to the global carbon cycle (and therefore climate) and quantifying anthropogenic emissions of greenhouse gases (GHGs) both require an understanding of net GHGs emissions and uptake across a variety of spatial and temporal scales.  This talk will explore some of the...

  50. 2016 Uncertainty Quantification in Computational Models of Physical Systems

    04 Feb 2021 | Webinars | Contributor(s): Habib Najm

    Models of physical systems typically involve inputs/parameters that are determined from empirical measurements, and therefore exhibit a certain degree of uncertainty. Estimating the propagation of this uncertainty into computational model output predictions is crucial for purposes...