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Perspectives on a Seamless Marine-lake Sediment Coring Study in East Antarctica

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Title: Perspectives on a Seamless Marine-lake Sediment Coring Study in East Antarctica
Authors: Suganuma, Yusuke Browse this author
Ishiwa, Takeshige Browse this author
Kawamata, Moto Browse this author
Okuno, Jun'chi Browse this author
Katsuki, Kota Browse this author
Itaki, Takuya Browse this author
Seki, Osamu Browse this author →KAKEN DB
Kaneda, Heitaro Browse this author
Matsui, Hiroki Browse this author
Haneda, Yuki Browse this author
Fujii, Masakazu Browse this author
Hirano, Daisuke Browse this author
Keywords: East Antarctica
Antarctic Ice Sheet (AIS)
sea-level change
seamless sediment coring
Glacial Isostatic Adjustment (GIA)
Issue Date: 25-Oct-2020
Publisher: Tokyo Geographical Society
Journal Title: Journal of Geography
Volume: 129
Issue: 5
Start Page: 591
End Page: 610
Publisher DOI: 10.5026/jgeography.129.591
Abstract: The Antarctic Ice Sheet (AIS) is one of the largest potential contributors to future sea-level changes. Recently, an acceleration of AIS volume loss through basal melting and iceberg calving has been reported based on several studies using satellite observations, including radar altimetry, interferometer, and gravity measurements. A recent model that couples ice sheet and climate dynamics and incorporates hydrofracturing mechanism of buttressing ice shelves predicts a higher sea-level rise scenario for the next 500 years. However, the calibration and reproducibility of the sea-level rise projection from these models relies on geological sea-level reconstructions of past warm intervals. This suggests that a highly reliable reconstruction of the past AIS is essential for evaluating its stability and anticipating its contribution to future sea-level rise. In particular, a relative sea-level reconstruction in East Antarctica is the key to solving the problems and refining future projections. The current understanding of sea-level change along the East Antarctic margin is reviewed, including Glacial Isostatic Adjustment (GIA) effects, and a new strategy is proposed to address this topic based on seamless sediment coring from marine to lake in the East Antarctic margin. This project will provide essential data on AIS change since the last interglacial period.
Type: article
URI: http://hdl.handle.net/2115/80291
Appears in Collections:低温科学研究所 (Institute of Low Temperature Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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