May 12 2022
Poroelastic Implementation in PyLith: Gateway to Multiphysics
Robert Walker, SUNY BuffaloPyLith, a community, open-source code (https://geodynamics.org/resources/pylith) for modeling quasi-static and dynamic crustal deformation with an emphasis on...
Apr 14 2022
Interaction Between Earthquakes and Interseismic Deformation
Kali Allison, UC DavisEarthquake cycle models can be used to understand the processes that govern fault and shear zone structure and to link these processes to earthquake cycle...
Mar 10 2022
Dynamo Simulations of Planetary Cores
Ryan Orvedahl, UC DavisThe majority of solar system planets possess global, or large-scale, magnetic fields. These magnetic fields are all thought to be generated by the dynamo mechanism, whereby...
Feb 17 2022
Energy transfer among flow and magnetic fields with different equatorial symmetry during the dipole reversal in a geodynamo simulation
Takumi Kera, Tohoku University[movie]The geomagnetic field has reversed its polarity, and some numerical dynamos have suggested that anti-symmetric flow with respect to the equator plays a...
Jan 13 2022
Introduction to reference Earth models and datasets using AVNI
Pritwiraj ‘Raj’ Moulik, Princeton University• Open-source Python package with APIs to handle data and compute intensive queries• Introduce storage formats or classes for...
Nov 12 2020
2020 Numerical models of lower crustal flow explain Yellowstone's "tectonic parabola"
Jonathan Perry-Houts, UC Davis. Several hypotheses exist for the origin of the seismically active region of high topography surrounding the Yellowstone hotspot track. Among these is the idea...
May 14 2020
2020 Discovering and addressing social challenges during the evolution of scientific software projects
Rene Gassmoeller, CIG UC DavisIn the last decade geodynamic software projects have increasingly incorporated state-of-the-art technical best practices like version control, documentation,...
Apr 16 2020
2020 Geodynamic inversion: Methods to link models with data & how that helps to obtain insights in the physics and rheology of the lithosphere
Boris Kaus, Tobias Baumann, Georg Reuber, and Anton Popov; Institute of Geosciences, Johannes Gutenberg University, Mainz[All 2019-20 webinars] [YouTube]
Feb 27 2020
2020 Seismic data and data products to motivate, guide, and test geodynamic models of the lithosphere and upper mantle
Brandon Schmandt, University of New MexicoObservational seismic data and data products are among the major sources of information about structure and multi-scale deformation in the lithosphere...
Nov 14 2019
2019 The Release of the GEM Global Active Faults Database and Global Seismic Hazard Map
Richard Styron, GEM FoundationIn late 2018, the Global Earthquake Model Foundation (GEM) released the initial version of several major products relating to seismic hazard and risk, including...
May 16 2019
2019 Thermodynamic calculations and model generation using ENKI
Mark Ghiorso, OFM ResearchENKI is a collaborative, web-based model-configuration and testing portal that provides tools in computational thermodynamics and fluid dynamics. The ENKI...
May 09 2019
2019 HeFESTO: A tool for exploring Earth’s physical properties and their effects on mantle dynamics
Carolina Lithgow-Bertelloni, UCLA The minerals that exist at the extreme pressure and temperature conditions of the mantle and their physical properties determine the dynamics of the mantle....
Apr 11 2019
2019 TerraFERMA: a framework for rapidly building finite element models in geodynamics
Cian Wilson, Carnegie Science, DTM, Modern, advanced, open-source computational libraries are giving an increasing amount of power to researchers to develop customized numerical models, tailor...
Feb 14 2019
2019 Conducting Reproducible Science with Sciunits
Tanu Malik, DePaul UniversityEunseo Choi, University of MemphisScience is conducted collaboratively and often requires sharing of computational experiments. An experiment often includes diverse...
Jan 31 2019
2019 Introduction to Quagmire
Louis Moresi, University of MelbourneBen Mather, University of SydneyQuagmire is an open source, parallel python module for modelling surface processes and landscape evolution. It comes from the...
Nov 08 2018
2018 Introduction to thermal-mechanical lithosphere models with surface processes
Louis Moresi and Romain Beucher, University of MelbourneSurface processes including erosion, transport and sedimentation have the potential to strongly influence crustal and lithospheric...
May 10 2018
2018 ASPECT 2.0: Improved architecture, new features
Rene Gassmöller, Juliane Dannberg and John Naliboff, UC Davis[All 2017-18 webinars] [YouTube]
Apr 17 2018
2018 New developments in AxiSEM/Instaseis for seismic wave propagation on local scales
Lion Krischer, Simon Staehler, and Martin van Driel, ETH Zurich; Tarje Nissen-Meyer, Oxford UniversityInstaseis (http://instaseis.net) is a Python tool to quickly...
Mar 08 2018
2018 Where have all the dimensions gone? Hands on methods for introducing students to non-dimensional numbers in laboratory and numerical modeling
Eric Mittelstaedt, University of IdahoExperienced modelers are familiar with how non-dimensionalizing mathematical systems can help improve numerical stability, reduce the number of free variables...
Feb 08 2018
2018 Pythonic Geodynamics
Gabriele Morra, University of Louisiana at LafayetteStudents and young researchers who want to learn to use computational tools for geodynamic modeling have the option to choose among a wide range...
Nov 16 2017
2017 Tools and approaches for teaching computation and modeling: geodynamics and beyond
Max Rudolph, University of California, DavisI will share experiences teaching computation and modeling using a variety of tools and techniques. First, I will present my philosophy and approach to...
Oct 12 2017
2017 Geodynamic modeling with staggered finite differences and marker in cell: theory, teaching and examples
Taras Gerya, ETH ZurichNumerical 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...
Apr 13 2017
2017 An overview of PyLith plus a preview of multiphysics and other features coming in PyLith v3.0
Brad Aagaard, USGSI will give an overview of PyLith, including a discussion of the types of applications for which it is designed, the features currently available, and the user workflow...
Mar 09 2017
2017 Introduction to the spectral-infinite-element method
Hom Nath Gharti and Jeroen Tromp, Princeton UniversityThe governing equations for the elastic-gravitational deformation of an Earth model involve a perturbed gravitational potential. The...
Feb 09 2017
2017 Project Jupyter for the geosciences
Ian Rose, UC BerkeleyAs the results of scientific computing become more central in the geosciences, we have been confronted with a series of challenges that were not necessarily obvious from the...
Nov 10 2016
2016 Intricacies of particle-in-cell methods in convection models with adaptive meshes: Using ASPECT's particle implementation
Rene Gassmoeller, CSU Fort CollinsParticle-in-cell methods have a long history in modeling of mantle convection, lithospheric deformation and crustal dynamics. However, their efficient parallel...
Oct 13 2016
2016 Software Practices in Computational Science Communities – an Overview
Anshu Dubey, Argonne National Laboratory Scientific code developers typically adopt software processes derived from the mainstream (non-scientific) community when continuing without...
May 12 2016
2016 Resolution analysis by random probing
Andreas Fichtner, ETHWe 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...
Mar 10 2016
2016 Statistical and computational challenges of constraining greenhouse gas budgets
Anna M. Michalak, Carnegie Institution for SciencePredicting future changes to the global carbon cycle (and therefore climate) and quantifying anthropogenic emissions of greenhouse gases (GHGs)...
Feb 11 2016
2016 Uncertainty Quantification in Computational Models of Physical Systems
Habib Najm, Sandia National LaboratoryModels of physical systems typically involve inputs/parameters that are determined from empirical measurements, and therefore exhibit a certain...
Dec 03 2015
2015 An introduction to Virtual Quake
Kasey Schultz, University of California, DavisThis webinar will introduce Virtual Quake, a boundary element code that performs simulations of fault systems based on stress interactions between...
Nov 12 2015
2015 Simulating seismic wave propagation with SW4
Anders Petersson Lawrence Livermore National LaboratoryThis webinar describes how to use the SW4 code to simulate ground motion due to earthquakes. After a brief overview of the numerical...
Oct 08 2015
2015 An introduction to BurnMan - a mineral physics toolkit
Sanne Cottar, Ph.D., University of Cambridge; Professor Timo Heister, Clemson University; Bob Myhill, Ph.D., University of Bayreuth; Ian Rose, University of...
May 28 2015
2015 Ground motion simulation, seismic imaging, large-scale time series processing, and Big Data technology for solving earth science problems
Arben Pitarka, Ph.D., Douglas Dodge, Ph.D, Steven Magana-Zook, & Stanley Ruppert, Ph.D.Lawrence Livermore National LabWe begin with an overview of current projects at...
Apr 09 2015
2015 Work flows and 3-D geodynamic simulations of the India-Eurasia collision zone
Professor Lucy FleschPurdue UniversityThe theory of plate tectonics tends to breakdown at continental collisional boundaries where deformation is diffuse and highly spatially variable. ...
Mar 12 2015
2015 ASPECT: From Benchmarking to 3D Subduction Applications
Cedric Thieulot, Ph.D.; Anne Glerum, and Menno FratersUniversity of UtrechtASPECT, the Advanced Solver for Problems in Earth's Convection, is an extensible open source, community supported...
Feb 12 2015
2015 Accuracy and Performance Benchmarks for Geodynamo Simulation
Eric Heien, Ph.D. & Hiro Matsui, Ph.D.University of Davis, CaliforniaNumerical simulations of planetary dynamos have revealed many scientific insights over the past several years....
Jan 15 2015
2015 Influence of numerical discretization on preferred thermal convection patterns in a 3-D spherical shell
Pierre Arrial, Ph.D. & Professor Louise KelloggUniversity of Davis, California3-D numerical simulations of thermal convection in a spherical shell have become a standard for studying the...
Nov 13 2014
2014 Software Design and packaging for extensibility, provenance, and sharing
Jed Brown, Ph.D.Argonne National LabThere is more to developing successful scientific software than the core numerical implementation. Slapping an open source license on the code does not...
Oct 09 2014
2014 Earth System Bridge: NSF's EarthCube entry point for solid Earth geosciences
Anna Kelbert, Ph.D.Oregon State UniversityNSF’s EarthCube is a relatively new Earth science knowledge integration initiative. It has a grand ambition to develop a common cyberinfrastructure...
May 15 2014
2014 Community Dynamo Code Development Project
Jon Aurnou (UCLA) & the Geodynamo TeamOver the past 20 years, researchers have made great strides in simulating convection-driven dynamo action. They have modeled convection of...
Apr 10 2014
2014 ASPECT: Science Highlights
ASPECT TeamASPECT, the Advanced Solver for Problems in Earth's ConvecTion, is a finite element code to simulate problems in thermal convection in both 2D and 3D models primarily focused on...
Mar 13 2014
2014 Software and the Scholarly Record
MacKenzie Smith University Librarian, University of California, DavisModeling and other forms of computational science require software to be shared and preserved, to insure reproducibility of...
Feb 13 2014
2014 Exascale Visualization: Why Things Will Change For You
Hank Childs Professor, University of OregonExascale computing is on the horizon, and may appear as soon as 2019. So what does this mean for visualization? Plenty. Exascale machines will place...
Jan 09 2014
2014 Interactive Visualization for Scientific Data Analysis
Dr. Oliver Kreylos University of California, DavisVisualization, the process of turning data into pictures (or movies) for analysis or communication of results, is a long-established...
Nov 14 2013
2013 Using SELEN to Solve the Sea Level Equation
Giorgio SpadaProfessor, Universita’ di UrbinoWhen the mass of an ice sheet changes, sea level does not varies uniformly around the world. There are many reasons for this: the solid Earth...
Oct 10 2013
2013 The World Is Not Enough: Mantle Dynamics from a Planetary Perspective
Scott KingProfessor, Department of Geosciences, Virginia Polytechnic InstituteWhile many CIGers are firmly rooted here on planet Earth, CIG modeling tools can and are being applied to interesting...
May 16 2013
2013 Stellar Scalable Pseudospectral Methods and the Geodynamo
Nick Featherstone, Ph.D. CU BoulderThis webinar will begin with a brief overview of recent efforts to model convection and dynamos in the Sun and other stars. Such models (massive stars in...
Apr 11 2013
2013 Bayesian Earthquake Modeling
Sarah Minson, Ph.D. US Geological SurveyThis seminar will provide an introduction to Bayesian analysis and its advantages and disadvantages relative to traditional optimization approaches for...
Mar 21 2013
2013 Using Relax to Probe the Rheology of the Lithosphere
Professor Sylvain BarbotNanyang Technological UniversityThe Relax software implements a semi analytic solver in the Fourier domain to simulation stress change and deformation in the lithosphere...