Figure 4.
(a) Straight-ray analysis of average VP versus source–receiver offset. (b) Average VP versus azimuth with best-fitting Thomsen ellipse (solid line) and range of Thomsen ellipses with up to 10 per cent higher RMS error (grey lines). (c) Best-fitting Thomsen parameters (dots) and error bars for error range of up to 10 per cent versus best RMS fit.

(a) Straight-ray analysis of average VP versus source–receiver offset. (b) Average VP versus azimuth with best-fitting Thomsen ellipse (solid line) and range of Thomsen ellipses with up to 10 per cent higher RMS error (grey lines). (c) Best-fitting Thomsen parameters (dots) and error bars for error range of up to 10 per cent versus best RMS fit.

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