2:40 PM - 2:55 PM
[MIS15-04] Research of Ocean-ice BOundary InTeraction and Change around Antarctica (ROBOTICA)
As for the oceans and ice sheets, importance of repeated observations to describe their variabilities and changes, even at an interval of two to three decades, was stressed at least as early as IGY period. From 1976, year-round hydrographic observations have been conducted occasionally in Lutzow-holm Bay by Japanese parties, which provides one of the longest observational records. Together with the asset of long record of tide gauge near Syowa station, Lutzow-holm Bay is the important monitoring site for the description of temporal variability. However, a constant and sustained observation system is not yet established due to the logistic difficulties of sea ice. Even the bathymetric information, which is essential in any discipline of oceanography, is still insufficient. However, recent rapid progress in the techniques of remote autonomous observation and satellite communication are beginning to change this situation. Hence, under the project called ROBOTICA for the coming 9th six-year plan (2016-2023), we plan to utilize state-of-the-art unmanned observations such as under-ice oceanographic, seafloor and cryospheric observations using ROV/AUVs, geodetic network observations of ice/ocean motion and deformation using GPS/ GNSS, and oceanographic observations using tethered and moored profiling observation systems. Combinations with the conventional and robust observational techniques will enable us to acquire the detailedenvironmental information both in time and space. Implementation of this project can provide us a big step forward for realization of the dream of the sustained observation system around Antarctica. Application of the remote observation techniques to the new horizons such as Totten Glacier and Cape Darnley regions will enhance the understandings of the mechanisms of different ice-ocean interaction regimes.