2:15 PM - 2:28 PM
[U06-04] Global deployment of Deep Argo floats toward accurate prediction of future climate and ecosystem changes
Keywords:Deep-sea Argo Float, Deep Ocean Mixing, Global Overturning Circulation, Climate Change Prediction, Paleo-environmental Change, Marine Bio-resources
The Oceanographic Society of Japan submitted a research proposal in association with 16 academic societies belonging to the Fisheries/Oceanography Research Liaison Council and the Paleontological Society of Japan. The proposal focuses on observation of turbulence in the deep sea with a turbulence sensor attached to a deep-sea Argo float (at a target depth of greater than 4000 meters) called “Deep NINJA.” More than 10 floats of this type with conventional temperature and salinity sensors are currently in operation in the Southern Ocean. By deploying approximately 1000 floats, observation of temperature, salinity and turbulence will be conducted globally from the ocean surface to seafloor. The obtained data will be incorporated into a coupled atmosphere-ocean global climate model and simulation will be conducted using the leading Japanese supercomputer facility. Responses of the biological community to the reproduced paleo-environmental changes can be validated by paleontological data such as the microfossil record in sediment cores; such validation can be used to further refine the model. It is expected that far more accurate prediction of future climate, marine biological production and marine bio-resources can be achieved through the proposed research.