Abstract
By introducing a new parameter, slowness deviation, a ray-path-length-dependent slowness model has been previously developed. Synthetic tests indicate that for a horizontal layered slowness structure, the new model gives a good estimate of the weighted average slowness of a ray when the rays considered cover a small range of take-off angles. When the rays considered cover a large range of take-off angles, the new model gives good estimates of the weighted average slowness for the long rays, but large errors still remain for the short rays.
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Xie, Z., Rabinowitz, P.D. & Spencer, T.W. Ray path-length-dependent slowness model. Journal of Seismology 2, 317–322 (1998). https://doi.org/10.1023/A:1009797901121
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DOI: https://doi.org/10.1023/A:1009797901121