Independently invert Vs and Vp models for 10 iterations at 0 - 0.05Hz frequency band. The Vs profile has been updated faster the Vp profile due to more sensitivity to the adjoint wavefield method. A joint-update (dependently update) for Vs and Vp profiles is suggested to improve the convergence of the method according to the given true model.
True model |
---|
Initial model |
Inverted model after 1 iteration |
Inverted model after 10 iterations |
The normalized error and step length along the iterations:
The Vs and Vp gradients at the first iteration
2-D profiles of the gradients at the first iteration
z=25 km | y=100 km | x=100km |
---|