FIG. 5. (A) Prestack depth migration (PSDM) image of the western end of Line 1 (Fig. 4). The vertical scale is relative to the Line 2 datum for comparison. (B) Results of velocity tomography. Some minor lateral heterogeneity is evident. The largest vertical contrast occurs at the water table at a depth of about 15 m. (C) Moisture content estimate using the Topp equation. The minimum water content below the water table is about 29% (v/v). Note that the depth scale is from the common site datum to facilitate direct comparison with Line 2.