Large earthquakes produce seismic waves which are recorded globally by sensitive seismometers. Using such seismic broad-band data from all over the world, we conduct global seismic adjoint tomography to refine 3D seismic models of the entire planet Earth. This necessitates fast and highly accurate forward and adjoint solvers together with large HPC facilities. We therefore investigate and develop spectral-element codes to advance the state-of-the-art in global seismic tomography.
This research is done in collaboration with Prof. Jeroen Tromp, Princeton University, and Prof. Ebru Bozdag, Colorado School of Mines, within an INCITE project using Summit, one of the largest supercomputers at Oak Ridge National Labs: