Perspectives on a Seamless Marine-lake Sediment Coring Study in East Antarctica
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, interfero...
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Online Access: | http://hdl.handle.net/2115/80291 https://doi.org/10.5026/jgeography.129.591 |
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/80291 2023-05-15T13:51:33+02:00 Perspectives on a Seamless Marine-lake Sediment Coring Study in East Antarctica Suganuma, Yusuke Ishiwa, Takeshige Kawamata, Moto Okuno, Jun'chi Katsuki, Kota Itaki, Takuya Seki, Osamu Kaneda, Heitaro Matsui, Hiroki Haneda, Yuki Fujii, Masakazu Hirano, Daisuke http://hdl.handle.net/2115/80291 https://doi.org/10.5026/jgeography.129.591 jpn jpn Tokyo Geographical Society http://hdl.handle.net/2115/80291 Journal of Geography, 129(5): 591-610 http://dx.doi.org/10.5026/jgeography.129.591 East Antarctica Antarctic Ice Sheet (AIS) sea-level change seamless sediment coring Glacial Isostatic Adjustment (GIA) 450 article fthokunivhus https://doi.org/10.5026/jgeography.129.591 2022-11-18T01:06:16Z 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. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelves Iceberg* Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Antarctic East Antarctica The Antarctic Journal of Geography (Chigaku Zasshi) 129 5 591 610 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
Japanese |
topic |
East Antarctica Antarctic Ice Sheet (AIS) sea-level change seamless sediment coring Glacial Isostatic Adjustment (GIA) 450 |
spellingShingle |
East Antarctica Antarctic Ice Sheet (AIS) sea-level change seamless sediment coring Glacial Isostatic Adjustment (GIA) 450 Suganuma, Yusuke Ishiwa, Takeshige Kawamata, Moto Okuno, Jun'chi Katsuki, Kota Itaki, Takuya Seki, Osamu Kaneda, Heitaro Matsui, Hiroki Haneda, Yuki Fujii, Masakazu Hirano, Daisuke Perspectives on a Seamless Marine-lake Sediment Coring Study in East Antarctica |
topic_facet |
East Antarctica Antarctic Ice Sheet (AIS) sea-level change seamless sediment coring Glacial Isostatic Adjustment (GIA) 450 |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Suganuma, Yusuke Ishiwa, Takeshige Kawamata, Moto Okuno, Jun'chi Katsuki, Kota Itaki, Takuya Seki, Osamu Kaneda, Heitaro Matsui, Hiroki Haneda, Yuki Fujii, Masakazu Hirano, Daisuke |
author_facet |
Suganuma, Yusuke Ishiwa, Takeshige Kawamata, Moto Okuno, Jun'chi Katsuki, Kota Itaki, Takuya Seki, Osamu Kaneda, Heitaro Matsui, Hiroki Haneda, Yuki Fujii, Masakazu Hirano, Daisuke |
author_sort |
Suganuma, Yusuke |
title |
Perspectives on a Seamless Marine-lake Sediment Coring Study in East Antarctica |
title_short |
Perspectives on a Seamless Marine-lake Sediment Coring Study in East Antarctica |
title_full |
Perspectives on a Seamless Marine-lake Sediment Coring Study in East Antarctica |
title_fullStr |
Perspectives on a Seamless Marine-lake Sediment Coring Study in East Antarctica |
title_full_unstemmed |
Perspectives on a Seamless Marine-lake Sediment Coring Study in East Antarctica |
title_sort |
perspectives on a seamless marine-lake sediment coring study in east antarctica |
publisher |
Tokyo Geographical Society |
url |
http://hdl.handle.net/2115/80291 https://doi.org/10.5026/jgeography.129.591 |
geographic |
Antarctic East Antarctica The Antarctic |
geographic_facet |
Antarctic East Antarctica The Antarctic |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelves Iceberg* |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet Ice Shelves Iceberg* |
op_relation |
http://hdl.handle.net/2115/80291 Journal of Geography, 129(5): 591-610 http://dx.doi.org/10.5026/jgeography.129.591 |
op_doi |
https://doi.org/10.5026/jgeography.129.591 |
container_title |
Journal of Geography (Chigaku Zasshi) |
container_volume |
129 |
container_issue |
5 |
container_start_page |
591 |
op_container_end_page |
610 |
_version_ |
1766255457867923456 |