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Conference Paper

Long-term simulation of Antarctic ice sheet for oldest-ice core topic

Authors

Saito,  Fuyuki
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Obase,  Takashi
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Abe-Ouchi,  Ayako
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Citation

Saito, F., Obase, T., Abe-Ouchi, A. (2023): Long-term simulation of Antarctic ice sheet for oldest-ice core topic, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-0815


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016654
Abstract
Ice divides are important locations for deep drilling on ice-sheets. Precise computation around a divide requires spatially very high resolution due to the characteristics of ice-flow around the divide. There are several methods to compute the age of ice. One is to apply a very high resolution 1-d column model on target sites. In this case the history of ice-sheet thickness and velocity is needed to be specified, which can be obtained using 3-d transient ice sheet models. A series of numerical experiments of Antarctic ice sheet using an ice-sheet model IcIES with various configuration are perfomed to evaluate possibility of changes in the position and elevation of Dome Fuji, as well as changes in the long-term ice-sheet volume. Their sensitivity to the evolution of glacial/interglacial climate and ice-grounded will be discussed, in particular to discuss its influence for ice-core dating computation.