Adjoint-state Traveltime Tomography

Nov 8, 2025·
Pengfei Zuo
Pengfei Zuo
· 1 min read

Physical model for seismic traveltime

Eikonal equation

Source-receiver geometry

  • Absolute traveltime

  • Common-source traveltime

  • Common-receiver traveltime

Objective function

  • Absolute traveltime

  • Common-source double difference traveltime

  • Common-receiver double difference traveltime

Fréchet derivatives and sensitivity kernels

  • Adjoint traveltime field

  • Adjoint source

  • sensitivity kernels

Model parameterization basis function

Iterative inversion

Forward Solvers Fast sweeping method

Ray-based traveltime tomography

Research Tomography Inversion
Pengfei Zuo
Authors
Pengfei Zuo (he/him)
Ph.D. student
Make every day count.