Spread parameters Profile 3
Recording system Sercel LiteTM
Survey geometry asymmetric split spread, roll-along
No. of receivers
Wireless: 421 (1-1961 locations) Streamer: 20 (17,546 locations)
No. of shots 7351 (at 1887 shot points, 4 sweep records/point in most places)
Nominal shot/receiver spacing 20 m
Maximum offset ~ 7290 m
Source type Two 12t, Mini-vibs, 10-140 Hz linear, 18 s long, peak force of 95 kN per vibrator
Geophone
Wireless: vertical 10 Hz, spike Streamer: three component (3C) MEMs, only vertical used for analysis
Sampling interval 1 ms
Record length 32 s (15 s after cross-correlation)
Wireless data downloading Based on landstreamer GPS-time tagging
Total no. of traces
Wireless: 701,020 Streamer: 34,435
Maximum CMP fold
Wireless: 382 Streamer: 97
Geodetic surveying DGPS corrected where needed using national elevation grid data