What are the ships and instruments using for surveys?

Ships
*Deep Sea Reseach Vessel "KAIREI"
*Research Vessel "KAIYO"

Instruments
*MCS[Multi-Channnel Seismic reflection] system
*OBS[Ocean Bottom Seismograph]
*Gravity and Geomagnetic mesurements

How to display profiles

Line parallel to trench axis : Right = North or East, Left = South or West
Line crosses trench axis : Right = South or East, Left = North or West
Vertical axis : Two way time ( 1scale=1000ms)
Horizontal axis : SP No.(1scale=100SP=5km) or CDP No.(1scale=1000cdp=12.5km)