Table T2. Parameters used in the semblance analysis to calculate velocities (VP, VS, and Vst) and amplitudes.

Table T2. Parameters used in the semblance analysis to calculate velocities (V_P, V_S, and V_st) and amplitudes.


Measurement	P- and S-waves	Stoneley waves
Velocity range (m/s)	1550–6600	400–1540
Velocity resolution (m/s)	50	20
Start time (µs)	500–1800	1600–4800
Time resolution (µs)	1	1
Window length	8 samples; 12.5 kHz	40 samples; 625 Hz
Limitations	V_P/1.4 > V_S > V_F; variations between shots < 500 m/s	V_st < V_F

Notes: In P&S mode, the labeling algorithm distinguishes between P and S head wave arrivals. These limitations are based on physical limitations described in (Kimball and Marzetta, 1984).