Joint transmission and reflection traveltime tomography using the fast sweeping method and the adjoint-state technique

• Published in: Geophysical Journal International
• Main Authors: Huang, Jun-Wei, Bellefleur, Gilles
• Format: Text
• Language: English
• Published: Oxford University Press 2012
• Subjects: Seismology; Canada; Mackenzie Delta; Northwest Territories; permafrost; Thermokarst
• Online Access: http://gji.oxfordjournals.org/cgi/content/short/188/2/570; https://doi.org/10.1111/j.1365-246X.2011.05273.x

We present a joint transmission and reflection traveltime tomography algorithm based on the Fast Sweeping Method and the adjoint-state technique. In contrast to classical ray based tomography, this algorithm utilizes a grid-based Eikonal equation solver to circumvent the non-linearity of conventiona...