[MIS15-P21] Summary of the 3rd Year Activities of the Project on the Interaction of the solid Earth and the
Antarctic Ice Sheet
Keywords:Glacial Isostatic Adjustment, Ice sheet changes, Sea level rise, East Antarctica
The Antarctic ice sheet is an essential element of the Earth system for predicting the future environment changes. Thus many studies have been conducted by means of geomorphological, geological, geodetic surveys, as well as satellite observations. For these studies, one of the largest uncertainties is the effects of GIA and the main reason of the uncertainties come from insufficient in-site observations. Thus we planned to conduct geomorphological, geological and geodetic surveys in the outcrop areas and the coastal areas in East Antarctica. Combining these new observations with other in-site data, various satellite data and numerical modeling, we aim to estimating a precise GIA model, constructing a reliable ice melting history after the last glacial maximum and obtaining the viscoelastic structure of the Earth's interior.
As the third year activities, we conducted absolute gravity measurements in Korean Jang Bogo station and Itarian Marrio Zucchelli station, boring core sampling and geomorphological surveys near Indian Maitri Station as well as several data analyses, numerical modeling, and other related studies.
In this presentation, we report these activities and the results so far obtained, and the observation/research plans in 2020 as well.
This study was partially supported by JSPS KAKENHI Grant No. 17H06321.