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Our main research areas are seismic modeling, wave equation migration velocity analysis (WEMVA) and full waveform inversion (FWI). In this page we give short introductions to the different areas. To make the text easy to read, and not require too much background knowledge, the most technical details are leaved out.

The purpose of a seismic modeling (or seismic stimulation) is a process where computers are used to simulate how seismic waves propagate through the Earth. The results from the simulations are used to understand how seismic waves in a real experience behave and propagate. In addition, seismic modeling is a major part of several algorithms which purpose is to give detailed images of the subsurface based on real data collected from for instance a seismic survey.

Below is the result of estimating the velocity model from synthetic data using Wave equation Migration Velocity Analysis (WEMVA) based on reverse-time migration (right). The true velocity model is displayed on the left.

The image below shows the result of Full-Waveform Inversion (FWI) using the WEMVA velocity model as an initial guess.