Fig. 6From: Seismic reflection survey of the crustal structure beneath Unzen volcano, Kyushu, Japan(a) Flowchart of data processing and (b) time-term of the surface layer at the vibration point along the profile (upper). The lower figure shows the velocity in the second layer (basement), as obtained from the travel-time curve. The static correction factor, which eliminates the travel time through the surface layer, can be calculated from the time-term factor.Back to article page