Objective
Thermohaline and material circulation and its history in the Indian sector of the Southern Ocean, with emphasis on the Cape Darnley Bottom Water ; Long-term monitoring of subsurface oceanic changes in the Southern Ocean using autonomous subsurface drifting buoys "Argo" ; Turbulence observation in Cape Darnley Bottom Water using CTD-attached fast-response thermistors ; Do submarine volcanism in mid-ocean ridges impact global climate change? ; Ship shift: Fremantle ~ Tokyo