Training Sessions on Tectonic Models and Large-Scale Earth Models at EarthScope 2009

CIG Training Sessions: Tectonic Models (Gale/PyLith) and Large-Scale Earth Models (SPECFEM/CitcomS)

Data from the US Array and PBO components of EarthScope allow an extraordinary opportunity to better understand Earth structure and dynamics. An important component of interpreting such data is the use of computational methodologies to simulate tectonic processes. In two full-day training sessions, the Computational Infrastructure for Geodynamics (CIG), an NSF center, will focus on training of new users in the use of software that can be used for the interpretation and modeling of EarthScope data. Both training sessions will be held May 12, 2009, from 8:30 a.m. to 5 p.m.

• Tectonic Models - Training will be provided in the use of the PyLith and Gale software packages. PyLith is a finite element code for the solution of dynamic and quasi-static tectonic deformation problems in one, two, or three dimensions. Gale is a 2D/3D parallel code that solves problems in orogenesis, rifting, and subduction with a variety of boundary conditions, including free surfaces and coupling to surface erosion models. As time permits, the workshop will also cover how to implement new rheologies and custom surface processes in Gale.
  
  Location: Firs North room
  
  Instructors: Brad Aagaard (USGS) and Charles Williams (GNS Science), PyLith
  Walter Landry (CIG), Gale
• Large-Scale Earth Models - Training will be provided in the use of the SPECFEM and CitcomS software packages for modeling structure and dynamics at regional to global scales. SPECFEM3D_GLOBE simulates global and regional (continental-scale) seismic wave propagation, and handles the effects of lateral variations in compressional-wave speed, shear-wave speed, density, 3D crustal thickness, ellipticity, topography and bathymetry, the oceans, rotation, and self-gravitation. CitcomS is a finite-element code designed to solve convection problems relevant to Earth's mantle and plate tectonics, which can handle a variety of temperature, stress, pressure, and compositional rheologies, thermo-chemical convection, and plate tectonic boundary conditions.
  
  Location: Cottonwoods North room
  
  Instructors: Eh Tan (CIG), CitcomS
  Kasper van Wijk (Boise State), Leif Strand (CIG), SPECFEM

During each session, participants will be given background theory, an overview of the codes including their strengths and weaknesses for solving geodynamic problems, and instruction on downloading and running these codes (including running them on the NSF TeraGrid, if available), and post-processing (visualizing) the results.

Some financial support is available to attend either CIG workshop; preference given to graduate students and post-docs. The deadline to register for this workshop is April 4, 2009.

To register for this workshop (and to request financial support, if needed), see Registration for CIG Training Session at EarthScope 2009.

The EarthScope National Meeting 2009 will be held in Boise, ID, at the Boise Centre on the Grove. For more information, see EarthScope National Meeting 2009.