Science enabled by open source tools and communities: Geophysical simulations and inversions

Keynote presentation given at the Pangeo Community Meeting in Seattle: https://pangeo.io/meetings/2019_summer-meeting.html

Transcript

1. Science enabled by open source tools and communities: Geophysical simulations and inversions Lindsey Heagy, Fernando Pérez, Doug Oldenburg & the SimPEG team Pangeo Meeting August 21, 2019
2. hello (a bit about me) geophysical inversions open-source software open research & education Jupyter, geoscience + data science +
3. imaging the subsurface
5. Direct current resistivity
6. Magnetics
7. Numerical Simulations: predict data Inversion: find a model physics! tools simpeg/discretize, simpeg/simpeg
9. Modular, multi-physics • Gravity • Magnetics • Direct current resistivity • Induced Polarization • Electromagnetics ◦ Frequency Domain ◦ Time Domain • Fluid Flow ◦ Richards Equation simpeg/discretize, simpeg/simpeg
10. examples, please
11. integrating heterogeneous data types @thast @sgkang Hydrology: airborne EM + wellbore data Joint inversion: gravity, magnetics + petrophysical data
12. large-scale magnetic vector inversions Satellite data: 2-arc minute EMAG v2 F [ m ] = b Divide and conquer Global problem F1 F2 FN ... ... Tiled forward Linear algebra, in parallel @fourndo
13. an open, modular ecosystem remix for diverse use-cases: research & education
14. education
15. education toys for learning
16. education toys for learning
17. education toys for research
18. GeoSci.xyz 18 https://geosci.xyz 26 locations worldwide
19. interdisciplinary collaboration Bridging disciplinary boundaries • software: interactive exploration • content: provides context • platform: lowers the barrier to entry 19
20. Jupyter meets the Earth: we got an NSF grant! • CMIP6 Climate data analysis • Large scale hydrological modelling • Geophysical simulations and inversions • Data discovery through JupyterLab • Interactivity: Widgets & Dashboards • JupyterHub: Using and managing shared computational infrastructure Fernando Perez Joe Hamman Laurel Larsen Kevin Paul Lindsey Heagy Chris Holdgraf Yuvi Panda Research use-cases Tech developments
21. looking ahead
22. Thank you! @lheagy lheagy@berkeley.edu @lindsey_jh