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  1. 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...

  2. 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...

  3. 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...

  4. 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.

  5. A New Seismic Catalog in the Caucasus Using Digitized Legacy Data

    25 Mar 2021 | Workshops | Contributor(s): Ana Aguiar, Rengin Gök, Tea Godoladze

    A New Seismic Catalog in the Caucasus Using Digitized Legacy Data. September 18-19, 2019. Ana Agular, Regin Gök, Tea Godoladze. 

  6. A Strawman for Legacy Data Metadata From Using International Input

    25 Mar 2021 | Workshops | Contributor(s): Tim Ahern

    A Strawman for Legacy Data Metatdata From Using International Input. September 18-19, 2019. Tim Ahern. 

  7. A Very Brief Tour of the U.S. Underground Nuclear Explosion Legacy Data

    25 Mar 2021 | Workshops | Contributor(s): Garrett Euler

    A Very Brief Tour of the U.S. Underground Nuclear Explosion Legacy Data. September 18-19, 2019. Garrett Euler. 

  8. Advancing Solid Earth System Science Through High-Performance Computing

    07 Feb 2021 | Documents | Contributor(s): Staff

    Advancing Solid Earth System Science Through High-Performance Computing.June 2014.

  9. Analysis of unusual earthquakes using 'legacy' data

    24 Mar 2021 | Workshops | Contributor(s): Meredith Nettles, John Wilding, Göran Ekström

    Analysis of unusual earthquakes using 'legacy' data. September 18-19, 2019. Meredith Nettles, John Wilding, Göran Ekström. 

  10. Archival efforts at AVO and AEC

    25 Mar 2021 | Workshops | Contributor(s): Jim Dixon

    Archival efforts at AVO and AEC. September 18-19, 2019. Jim Dixon. 

  11. Best Practices: Guidelines, Resources, and Education

    30 Mar 2021 | Workshops | Contributor(s): Brad Aagaard

    Best Practices: Guidelines, Resources, and Education. October 13-15, 2020. Brad Aagaard. 

  12. Calibration Analysis of ALQ

    25 Mar 2021 | Workshops | Contributor(s): Adam Ringler

    Calibration Analysis of ALQ. September 18-19, 2019. Adam Ringler. 

  13. CIG Business Meeting 2007 Presentations

    07 Feb 2021 | Documents | Contributor(s): Staff

    PDF presentations given at the CIG Business Meeting on December 11, 2007, in San Francisco during the annual AGU Meeting.

  14. CIG Business Meeting 2008 Presentations

    07 Feb 2021 | Documents | Contributor(s): Staff

    CIG Business Meeting 2008 Presentations.December 16, 2008.CIG Business Meeting: The Future of CIG, presented by Marc Spiegelmann (Columbia), EC Chair.CIG-II, presented by Louise Kellogg (UC Davis), SSC Chair.

  15. CIG Business Meeting 2009 Presentations

    07 Feb 2021 | Documents | Contributor(s): Staff

    CIG Business Meeting 2009 Presentation.Movie Files and Other Supporting Material.Ehler.

  16. CIG ByLaws 2012

    29 Jan 2021 | Documents | Contributor(s): Staff

    By-Laws of Computational Infrastructure for Geodynamics (CIG).As amended by the Electorate, January 9, 2012.

  17. CIG Bylaws 2018

    30 Mar 2021 | Documents | Contributor(s): Staff

    Bylaws of Computational Infrastructure for Geodynamics (CIG). As amended by the Electorate, June 30, 2018. 

  18. CIG II Proposal

    29 Jan 2021 | Documents | Contributor(s): Staff

    Geoinformatics:Facility Support:Computational Infrastructure for Geodynamics.July 8, 2009.

  19. CIG III Proposal

    05 Feb 2021 | Documents | Contributor(s): Staff

    Computational Infrastructure for Geodynamics 2016-2020. Submitted to NSF July 1, 2015.

  20. CIG PyLith Tutorial Workshop

    29 Mar 2021 | Workshops | Contributor(s): Brad Aagaard, Charles Williams, Matt Knepley

    CIG PyLith Tutorial Workshop. May 16, 2011. Brad Aagaard, Charles Williams, Matt Knepley. 

  21. Community Benchmarks for Code Verification

    30 Mar 2021 | Workshops | Contributor(s): Brad Aagaard

    Community Benchmarks for Code Verification. June 14-18, 2010. Brad Aagaard. 

  22. Computational Infrastructure for Geodynamics

    13 Feb 2021 | Workshops | Contributor(s): Brad Aagaard

    Computational Infrastructure for Geodynamics. June 25-29, 2007. Brad Aagaard. 

  23. Constructing a Finite-Element Model of the San Francisco Bay Area

    08 Jan 2021 | Workshops | Contributor(s): Brad Aagaard

    Constructing a Finite-Element Model of the San Francisco Bay Area. June 26-30, 2006. Brad Aagaard. 

  24. Convolutional Neural Network Detects Strombolian Eruptions at Mount Erebus, Antarctica

    25 Mar 2021 | Workshops | Contributor(s): Gabriele Morra, Taylor Privat, Brian Dye, Leila Honarbakhsh

    Convolutional Neural Network Detects Strombolian Eruptions at Mount Erebus, Antarctica. September 18-19, 2019. Gabriele Morra, Taylor Privat, Brian Dye, Leila Honarbakhsh. 

  25. Crustal Deformation Modeling

    02 Apr 2021 | Workshops | Contributor(s): Brad Aagaard

    Crustal Deformation Modeling. June 22-26, 2009. Brad Aagaard. 

  26. Crustal Deformation Modeling Tutorial

    07 Feb 2021 | Workshops | Contributor(s): Brad Aagaard, Charles Williams, Matthew Knepley

    Crustal Deformation Modeling Tutorial. Brad Aagaard, Charles Williams, and Matthew Knepley. June 24–28, 2013. 

  27. Crustal Deformation Modeling Tutorial

    08 Feb 2021 | Workshops | Contributor(s): Brad Aagaard, Charles Williams, Matthew Knepley

    Crustal Deformation Modeling Tutorial.Brad Aagaard, Charles Williams, and Matthew Knepley.June 20-24, 2011.

  28. Crustal Deformation Modeling Tutorial Debugging PyLith Simulations

    11 Feb 2021 | Workshops | Contributor(s): Brad Aagaard, Charles Williams, Matthew Knepley

    Crustal Deformation Modeling Tutorial Debugging PyLith Simulations. Brad Aagaard, Charles Williams, Matthew Knepley. August 25, 2015. 

  29. Crustal Deformation Modeling Tutorial: Overview of CUBIT

    02 Apr 2021 | Workshops | Contributor(s): Brad Aagaard, Rowena Lohman, Charles Williams, Matthew Knepley

    Crustal Deformation Modeling Tutorial: Overview of CUBIT. June 18-22, 2012. Brad Aagaard, Rowena Lohman, Charles Williams, Matthew Knepley. 

  30. Crustal Deformation Modeling Tutorial: PyLith/CUBIT: 2-D subduction zone with coseismic and interseismic deformation

    02 Apr 2021 | Workshops | Contributor(s): Brad Aagaard, Charles Williams, Matthew Knepley

    Crustal Deformation Modeling Tutorial: PyLith/CUBIT: 2-D subduction zone with coseismic and interseismic deformation. June 18-22, 2012. Brad Aagaard, Charles Williams, Matthew Knepley. 

  31. Crustal Deformation Modeling Tutorial: PyLith: Introduction to Dynamic Spontaneous Rupture

    02 Apr 2021 | Workshops | Contributor(s): Brad Aagaard, Matthew Knepley, Charles Williams

    Crustal Deformation Modeling Tutorial: PyLith: Introduction to Dynamic Spontaneous Rupture. June 18-22, 2012. Brad Aagaard, Matthew Knepley, Charles Williams. 

  32. Crustal Deformation Modeling Tutorial: PyLith: Introduction to Fault Friction

    02 Apr 2021 | Workshops | Contributor(s): Brad Aagaard, Matthew Knepley, Charles Williams

    Crustal Deformation Modeling Tutorial: PyLith: Introduction to Fault Friction. June 18-22, 2012. Brad Aagaard, Matthew Knepley, Charles Williams.

  33. CUBIT: Examples of 3-D meshing

    02 Apr 2021 | Workshops | Contributor(s): Brad Aagaard

    CUBIT: Examples of 3-D meshing. June 18-22, 2012. Brad Aagaard. 

  34. Dealing with old seismic data: something like a SWOT

    25 Mar 2021 | Workshops | Contributor(s): Josep Batlló

    Dealing with old seismic data: something like a SWOT. September 18-19, 2019. Josep Batlló. 

  35. Debugging PyLith Simulations

    08 Feb 2021 | Workshops | Contributor(s): Brad Aagaard, Charles Williams, Matthew Knepley

    Crustal Deformation Modeling Tutorial: Debugging PyLith Simulations. Brad Aagaard, Charles Williams, Matthew Knepley. June 24, 2014. 

  36. Education and Training

    02 Apr 2021 | Workshops | Contributor(s): Brad Aagaard

    Education and Training. March 30-31, 2009. Brad Aagaard. 

  37. Example: 2-D Subduction Zone with Coseismic and Interseismic Deformation

    08 Feb 2021 | Workshops | Contributor(s): Brad Aagaard, Charles Williams, Matt Knepley

    Crustal Deformation Modeling Tutorial: Example: 2-D Subduction Zone with Coseismic and Interseismic Deformation. Brad Aagard, Charles Williams, Matt Knepley. June 22, 2011. 

  38. Expanding Computational Infrastructure: The First 5 Years of CIG

    07 Feb 2021 | Documents | Contributor(s): Staff

    Expanding Computational Infrastructure: The First 5 Years of CIG.Parts 1 & 2.

  39. Extending PyLith

    30 Mar 2021 | Workshops | Contributor(s): Brad Aagaard, Charles Williams, Matthew Knepley, Surendra Somala

    Extending PyLith. June 14-18, 2010. Brad Aagaard. 

  40. 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...

  41. Finite-Element Modeling for Crustal Deformation

    30 Mar 2021 | Workshops | Contributor(s): Brad Aagaard

    Finite-Element Modeling for Crustal Deformation. June 14-18, 2010. Brad Aagaard. 

  42. Geophysical Data National Archive of IGN-Spain

    25 Mar 2021 | Workshops | Contributor(s): Josep Batlló, Jose Manuel Tordesillas, Marina López-Muga, Irene Benayas

    Geophysical Data National Archive of IGN-Spain. September 18-19, 2019. Josep Batlló, Jose Manuel Tordesillas, Marina López-Muga, Irene Benayas. 

  43. 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...

  44. Historical Seismogram Analysis

    25 Mar 2021 | Workshops | Contributor(s): Alberto Michelini, Matteo Quintiliani, Silvia Filosa

    Historical Seismogram Analysis. September 18-19, 2019. Alberto Michelini, Matteo Quintiliani, Silvia Filosa. 

  45. Image-Based Processing Methods in Develocorder Films Using Machine Learning: Application to the Rangely Earthquake Control Experiment

    25 Mar 2021 | Workshops | Contributor(s): Kaiwen Wang, Weiqiang Zhu, William L. Ellsworth, Gregory C. Beroza

    Image-Based Processing Methods in Develocorder Films Using Machine Learning: Application to the Rangely Earthquake Control Experiment. September 18-19, 2019. Kaiwen Wang, Weiqiang Zhu, William L. Ellsworth, Gregory C. Beroza. 

  46. Importance of Legacy Data for National Security

    24 Mar 2021 | Workshops | Contributor(s): Brian Young

    Importance of Legacy Data for National Security. September 18-19, 2019. Brian Young. 

  47. Introduction to CUBIT

    08 Feb 2021 | Workshops | Contributor(s): Brad Aagaard, Rowena Lohman, Charles Williams, Matthew Knepley

    Crustal Deformation Modeling Tutorial: Introduction to CUBIT. Brad Aagaard, Rowena Lohman, Charles Williams, Matthew Knepley. June 20, 2011.  

  48. Introduction to PyLith

    08 Feb 2021 | Workshops | Contributor(s): Brad Aagaard, Charles Williams, Matthew Knepley

    Crustal Deformation Modeling Tutorial: Introduction to PyLith.Brad Aagaard, Charles Williams, Matthew Knepley.June 20, 2011.

  49. Introduction to PyLith

    08 Feb 2021 | Workshops | Contributor(s): Brad Aagaard, Charles Williams, Matthew Knepley

    Crustal Deformation Modeling Workshop: Introduction to PyLith. Brad Aagaard, Charles Williams, Matthew Knepley. June 12, 2014. 

  50. Legacy Data Holdings Held By The U.S. Geological Survey in Colorado

    25 Mar 2021 | Workshops | Contributor(s): Jim Dewey

    Legacy Data Holdings Held By The U.S. Geological Survey in Colorado. September 18-19, 2019. Jim Dewey.