How can D/V CHIKYU continue to drill the particular point in the ocean with water
depth of several thousands meters?
We introduce the delicate technology equipped with the giant ship.
Dynamic Positioning System (DPS)
D/V CHIKYU uses GPS positioning data from satellites
and an acoustic positioning system that communicates with transponders on the ocean floor, to specify
its position and measure the forces acting on the ship (wind, wave, and current direction and speed).
Those data are used to predict the direction and speed at which the ship could deviate from its position.
Based on those predictions, computer-controlled thrusters (huge propellers that can rotate 360 degree)
apply counter-thrust in opposition to that deviation to hold the D/V CHIKYU in position. D/V CHIKYU
can continue drilling for months or a year in surface currents up to 3-4 knots, wind speeds of up to
23 meters per second, and wave heights of up to 4.5 meters.