A fast sweeping method based on discontinuous Galerkin method for the 3D factored eikonal equation

• Published in: Journal of applied geophysics Vol. 241; p. 105829
• Main Authors: Chen, Xin, Cao, Danping, Zhu, Zhaolin
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2025
• Subjects: 3D factored eikonal equation; Discontinuous Galerkin method; Superconvergence phenomenon; The fast sweeping method; The fast sweeping method; Discontinuous Galerkin method; Superconvergence phenomenon; 3D factored eikonal equation

First-arrival traveltime calculation is a crucial matter of seismic processing and imaging. However, the large computational scale and complex velocity structures in 3D media challenge both the accuracy and efficiency of traveltime calculations. Particularly for the point-source conditions, source s...