Program

1) SPECFEM2D and Waveform Inversion

Presenter: Yanhua Yuan

Time: March 15th, 12:30pm – 3: 00pm

Room: New Media Center/Digital Learning Lab, 130 Lewis Library, Princeton University

Description: Introduction to SPECFEM2D and full-waveform inversion using SPECFEM-based solver.  All participants will get hands-on experience on SPECFEM2D modeling, as well as full-waveform inversion in 2D examples.

Software: SPECFEM2D, Full Waveform Inversion workflow, Seismic Unix.

2. Seismic Data Processing with Obspy and ASDF

Presenter: James Smith

Time: March 15th, 3:00pm – 5: 00pm

Room: New Media Center/Digital Learning Lab, 130 Lewis Library, Princeton University

Introduction: A hands-on introduction to ASDF. I will go through the basics of creating datasets, processing datasets in serial and parallel, understanding Seis-prov provenance charts, and visualization tools. I will also briefly discuss workflows that incorporate ASDF using other python tools such as pyflex and pyadjoint.

Software: obspy, pyasdf, pyflex, pyadjointocessing with Obspy and ASDF

3. Model Mesh and Visualization

Presenter:  Hom Nath Gharti

Time: March 16th, 9:00am – 12:00pm

Room: New Media Center/Digital Learning Lab, 130 Lewis Library, Princeton University

Introduction: This session is focused on how to generate 3D meshes for simple as well as real geological models. We will start with mesh design criteria and let students mesh a few 3D toy models using Cubit/Trelis. Then we will talk about how to measure and improve the mesh quality. Finally, we will discuss on how to import/build the real geological models, and mesh & export to SPECFEM3D Cartesian.     

Software: Trellis, Paraview

4. SPECFEM3D Cartesian

Presenter: Dmitry Borisov

Time: March 16th, 1:00pm – 2:30pm

Room: New Media Center/Digital Learning Lab, 130 Lewis Library, Princeton University

Introduction: In this session we will present a software package “SPECFEM3D Cartesian”. As the “Global” version, this package is based on the spectral-element method, however it is mostly used to simulate seismic wave propagation at the local or regional scale. A brief theory overview and the package organization will be followed by an example, where everyone will be able to generate synthetic seismograms for a realistic Earth model. A hands-on code running session will be held after 2:30pm in case people want to leave early.

Software: SPECFEM3D, Matlab

5. SPECFEM3D Globe

Presenter: Wenjie Lei

Time: March 16th, 2:30pm – 4:00pm

Room: New Media Center/Digital Learning Lab, 130 Lewis Library, Princeton University

Introduction: A brief introduction to the SPECFEM3D Globe package. I will introduce the basic theory in this global version and some new features of this package (including the GPU capability and undo-attenuation feature). A demonstration of how to run the code will be included but no hands-on experience (for the students) on this software, considering the limited computing resource and its similarity to the Cartesian version.

Software: SPECFEM3D Globe