X01 General Group

A01-1 Circulation dynamics of heat, freshwater, and material originating from Antarctic Bottom Water

Targeting East Antarctic region that has been a missing piece of abyssal circulation, we will quantify the formation, circulation, and variation of the Antarctic Bottom Water and the accompanying material cycles, including the influence of the melting ice shelves, based on in-situ observations.

A01-2 Paleoclimate dynamics of the Southern Ocean

Combining paleoenvironmental data with in-situ observation data, we will reconstruct dynamics of the ocean circulation and sea ice over the past few million years to elucidate the current state of the interaction between the Southern Ocean and the global climate change.

A01-3 Ecosystem dynamics in the Antarctic sea ice zone

Using research vessels, mooring and drifting systems, we will clarify the ecosystem structure and its dynamics in the seasonal sea ice zone. We will also try to evaluate the influence of the sea-ice variability on marine ecosystems and material circulation in East Antarctica.

A02-1 Variations and interactions of climate and the Antarctic Ice Sheet

We analyze ice cores and perform in-situ/satellite observations to investigate the variations of the Antarctic Ice Sheet and climate in the past and present. We collaborate with climate and ice sheet modelers for better understanding of the interactions of the Antarctic Ice Sheet and climate.

A02-2 Interaction of the solid Earth and the Antarctic Ice Sheet

We will improve the accuracy of the Glacial Isostatic Adjustment (GIA) model by conducting precise geodetic observations, geomorphological and geological surveys, and analyzing satellite data. We will also reveal the ice sheet mass balance from past to present

A03 Challenges for unexplored frontiers

We will develop unmanned exploration vehicle technologies to elucidate unknown areas such as the topographic features beneath the ice shelves and the characteristics of seawater, and in order to establish the base. Meanwhile, we aim to measure the surface shape of the Antarctic sea ice, glaciers, and land areas in high resolution using unmanned aerial vehicles.

A04 Integrative modeling of the Antarctic Ice sheet,  ocean, and climate

We will use multi-level modeling such as atmosphere, the ocean, and ice sheets and conduct an analysis of data by integrating from precise in-situ observation data. We aim to understand the interaction of the Antarctic and global climate change and comprehend the details of the Antarctic “tipping point”.