Dikun Yang

Multi-stage Warm-up Seismic Full Waveform Inversion Informed by Electromagnetic Data

Abstract Full waveform inversion (FWI) provides high-resolution velocity models by exploiting the complete information embedded in seismic waveforms. However, the advantages of FWI come with cycle skipping when sufficient information is not available to build an accurate initial...

Multi-scale parallel time-stepping for 3D simulation of time-domain electromagnetic data with arbitrary transmitter waveforms

Abstract 3D time-domain electromagnetic (TEM) simulations typically employ sequential time stepping, requiring early-time calculations before late times, reducing parallelizability compared to frequency-domain methods. To address this issue, a decomposition method is developed to...