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  1. 2019 The Release of the GEM Global Active Faults Database and Global Seismic Hazard Map

    04 Feb 2021 | 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...

  2. 2019 HeFESTO: A tool for exploring Earth's physical properties and their effects on mantle dynamics

    04 Feb 2021 | 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...

  3. 2019 Introduction to Quagmire

    04 Feb 2021 | 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...

  4. 2018 Introduction to thermal-mechanical lithosphere models with surface processes

    04 Feb 2021 | 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...

  5. 2018 Pythonic Geodynamics

    04 Feb 2021 | 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...

  6. 2017 Geodynamic modeling with staggered finite differences and marker in cell: theory, teaching and examples

    04 Feb 2021 | 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...

  7. 2017 Introduction to the spectral-infinite-element method

    04 Feb 2021 | 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...

  8. 2016 Software Practices in Computational Science Communities – an Overview

    04 Feb 2021 | 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...

  9. 2016 Resolution analysis by random probing

    04 Feb 2021 | 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...

  10. 2016 Statistical and computational challenges of constraining greenhouse gas budgets

    04 Feb 2021 | 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...

  11. 2016 Uncertainty Quantification in Computational Models of Physical Systems

    04 Feb 2021 | 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...

  12. 2016 Verification, Validation, and Predictive Capability: What's What?

    04 Feb 2021 | Contributor(s): William Oberkampf

    Engineering and geosciences organizations must increasingly rely on computational simulation for the design, predicted response, and performance of manmade and natural systems. Computational analysts,  decision makers, and regulatory authorities who rely on simulation should have practical...

  13. 2015 ASPECT: From Benchmarking to 3D Subduction Applications

    04 Feb 2021 | Contributor(s): Cedric Thieulot, Anne Glerum, Menno Fraters, Wim Spakman

    ASPECT, the Advanced Solver for Problems in Earth's Convection, is an extensible open source, community supported code.  The code is being applied to a broad range of problems in geodynamics.  This talk will explore the community's efforts in benchmarking, implementation of...

  14. 2015 An introduction to Virtual Quake

    04 Feb 2021 | Contributor(s): Kasey Schultz, John Wilson

    This webinar will introduce Virtual Quake, a boundary element code that performs simulations of fault systems based on stress interactions between fault elements to understand long term statistical behavior. The webinar will cover:Downloading, installing and running Virtual...

  15. 2015 Simulating seismic wave propagation with SW4

    04 Feb 2021 | Contributor(s): Anders Petersson

    This webinar describes how to use the SW4 code to simulate ground motion due to earthquakes. After a brief overview of the numerical method, we describe how to set up a simulation in terms of seismic sources, the material model, visco-elastic attenuation, and topography. We also present some of...

  16. 2015 An introduction to BurnMan - a mineral physics toolkit

    03 Feb 2021 | Contributor(s): Sanne Cottar, Timo Heister, Bob Myhill, Ian Rose, Cayman Unterborn

    In this webinar we will introduce the extensible, open source mineral physics toolkit BurnMan. This software allows the user to calculate the elastic and thermodynamic properties of rocks, minerals, fluids and melts based on the properties of end-member phases. BurnMan is bundled with...

  17. Rheologic Controls on Slab Dynamics

    27 Dec 2020 | Contributor(s): Magali Billen

    Rheologic Controls on Slab Dynamics. June 23, 2005. Magali Billen. 

  18. Plumbing the Depths

    27 Dec 2020 | Contributor(s): Marc Spiegelman, Richard Katz

    Plumbing the Depths: Towards an integration of magma dynamics and global mantle convection. June 23, 2005. Marc Spiegelman, Richard Katz. 

  19. Grain size-dependent viscosity convection

    27 Dec 2020 | Contributor(s): Slava Solomatov

    Grain size-dependent viscosity convection. June 23, 2005. Slava Solomatov.

  20. Subduction Dynamics

    27 Dec 2020 | Contributor(s): Mike Gurnis

    Subduction Dynamics: From Initiation to Maturity. June 22, 2005. Mike Gurnis, Chad Hall. 

  21. How do we know if plate-like calculations are really plates and does it matter?

    27 Dec 2020 | Contributor(s): Scott King

    How do we know if plate-like calculations are really plates and does it matter? June 22, 2005. Scott King.

  22. Seismic anisotropy

    27 Dec 2020 | Contributor(s): Thorsten Becker

    Seismic anisotropy from nested flow models with fabric development: enough already? June 21, 2005. Thorsten Becker. 

  23. An Introduction to the TeraGrid

    27 Dec 2020 | Contributor(s): Jeffrey Gardner

    An Introduction to the TeraGrid. June 20, 2005. Jeffrey Gardner. 

  24. Pyre

    27 Dec 2020 | Contributor(s): Michael Aivazis

    Pyre - An overview of a software architecture for scientific applications. June 20, 2005. Michael Aivazis. 

  25. How to Stabilize Superplumes

    27 Dec 2020 | Contributor(s): Eh Tan, Mike Gurnis

    How to Stabilize Superplumes (Compressible thermo-chemical convection on African superplume). June 20, 2005. Eh Tan, Mike Gurnis. 

  26. Mantle Plume Volcanism on Present-day Mars

    27 Dec 2020 | Contributor(s): Walter Kiefer

    Mantle Plume Volcanism on Present-day Mars. June 20, 2005. Walter Keifer.

  27. Finite Prandtl Number Convection

    27 Dec 2020 | Contributor(s): Catherine A. Hier-Majumder

    Finite Prandtl Number Convection. June 20, 2005. Catherine A. Hier-Majumder. 

  28. Influences of the Postperovskite Transiton on Lower Mantle Dynamics

    27 Dec 2020 | Contributor(s): David Yuen, Charley Kameyama, Radek Matyska, Marie Behounokova

    Influences of the Postperovskite Transiton on Lower Mantle Dynamics. June 20, 2005. David Yuen, Charley Kameyama, Radek Matyska, Marie Behounokova.

  29. Thermo-chemical convection: a comparison of numerical methods, and application to modeling planetary evolution

    27 Dec 2020 | Contributor(s): Paul Tackley

    Thermo-chemical convection: a comparison of numerical methods, and application to modeling planetary evolution. June 20, 2005. Paul Tackley. 

  30. Investigating large-scale mantle heterogeneity using the thermochemical extension of CitcomS

    27 Dec 2020 | Contributor(s): Allen K. McNamara

    Investigating large-scale mantle heterogeneity using the thermochemical extension of CitcomS. June 20, 1005. Allen K. McNamara. 

  31. Influences of Compositional Stratification

    27 Dec 2020 | Contributor(s): Sarah Zaranek, E.M. Parmentier

    Influences of Compositional Stratification. June 19, 2005. Sarah Zaranek, E.M. Parmentier. 

  32. Thermochemical mantle plumes: tracers, markers and chains

    27 Dec 2020 | Contributor(s): Peter van Keken, Shu-Chuan (Sky) Lin

    Thermochemical mantle plumes: tracers, markers and chains. June 19, 2005. Peter van Keken, Shu-Chuan (Sky) Lin.

  33. A finite volume solution method for thermal convection in a spherical shell with strong temperature- and pressure-dependent viscosity

    27 Dec 2020 | Contributor(s): Kai Stemmer, H. Harder, U. Hansen

    A finite volume solution method for thermal convection in a spherical shell with strong temperature- and pressure-dependent viscosity. June 19, 2005. Kai Stemmer, H. Harder, U. Hansen. 

  34. Three-dimensional numerical simulations of thermo-chemical multiphase convection in Earth's Mantle

    27 Dec 2020 | Contributor(s): Takashi Nakagawa, Paul J. Tackley

    Three-dimensional numerical simulations of thermo-chemical multiphase convection in Earth's Mantle. June 19, 2005. Takashi Nakagawa, Paul J. Tackley. 

  35. The Existence, Longevity and Composition of Mantle Plumes and Hotspot Volcanoes

    27 Dec 2020 | Contributor(s): Mark Jellinek, Michael Manga

    The Existence, Longevity and Composition of Mantle Plumes and Hotspot Volcanoes.June 19, 2005. Mark Jellinek, Michael Mark. 

  36. Upper Mantle Dynamics Expressed in Hotspot Basalt Chemistry

    27 Dec 2020 | Contributor(s): Garrett Ito, Todd Bianco, John Mahoney, Janet Becker, Michael Garcia

    Upper Mantle Dynamics Expressed in Hotspot Basalt Chemistry. June 19, 2005. Garrett Ito, Todd Bianco, John Mahoney, Janet Becker, Michael Garcia.

  37. 3D spherical gridding

    27 Dec 2020 | Contributor(s): Christian Huettig

    3D spherical gridding based on equidistant, constant volume cells for FV/FD methods. June 19, 2005. Christian Huettig. 

  38. Unlocking the Secrets of the Rocky Planets

    27 Dec 2020 | Contributor(s): John Baumgardner

    Numerical and Benchmarking Issues for 3D Spherical Codes (Unlocking the Secrets of the Rocky Planets) June 19, 2005. John Baumgardner