Differences between the last two glacial maxima and implications for ice-sheet, δ 18 O, and sea-level reconstructions
Studies of past glacial cycles yield critical information about climate and sea-level (ice-volume) variability,including the sensitivity of climate to radiative change, and impacts of crustal rebound on sealevelreconstructions for past interglacials. Here we identify significant differences between...
Published in: | Quaternary Science Reviews |
---|---|
Main Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2017
|
Subjects: | |
Online Access: | https://www.vliz.be/imisdocs/publications/22/309422.pdf |
id |
ftnioz:oai:imis.nioz.nl:291290 |
---|---|
record_format |
openpolar |
spelling |
ftnioz:oai:imis.nioz.nl:291290 2023-05-15T15:04:18+02:00 Differences between the last two glacial maxima and implications for ice-sheet, δ 18 O, and sea-level reconstructions Rohling, E.J. Hibbert, F.D. Williams, F.H. Grant, K.M. Marino, G. Foster, G.L. Hennekam, R. de Lange, G.J. Roberts, A.P. Yu, J. Webster, J.M. Yokoyama, Y. 2017 application/pdf https://www.vliz.be/imisdocs/publications/22/309422.pdf en eng info:eu-repo/semantics/altIdentifier/wos/000416194300001 info:eu-repo/semantics/altIdentifier/doi/.org/10.1016/j.quascirev.2017.09.009 https://www.vliz.be/imisdocs/publications/22/309422.pdf info:eu-repo/semantics/openAccess %3Ci%3EQuat.+Sci.+Rev.+176%3C%2Fi%3E%3A+1-28.+%3Ca+href%3D%22https%3A%2F%2Fdoi.org%2F10.1016%2Fj.quascirev.2017.09.009%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdoi.org%2F10.1016%2Fj.quascirev.2017.09.009%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2017 ftnioz https://doi.org/10.1016/j.quascirev.2017.09.009 2022-05-01T14:06:28Z Studies of past glacial cycles yield critical information about climate and sea-level (ice-volume) variability,including the sensitivity of climate to radiative change, and impacts of crustal rebound on sealevelreconstructions for past interglacials. Here we identify significant differences between the lastand penultimate glacial maxima (LGM and PGM) in terms of global volume and distribution of land ice,despite similar temperatures and radiative forcing. Our analysis challenges conventional views of relationshipsbetween global ice volume, sea level, seawater oxygen isotope values, and deep-sea temperature,and supports the potential presence of large floating Arctic ice shelves during the PGM. Theexistence of different glacial ‘modes’ calls for focussed research on the complex processes behind ice-agedevelopment. We present a glacioisostatic assessment to demonstrate how a different PGM ice-sheetconfiguration might affect sea-level estimates for the last interglacial. Results suggest that this mayalter existing last interglacial sea-level estimates, which often use an LGM-like ice configuration, byseveral metres (likely upward). Article in Journal/Newspaper Arctic Ice Sheet Ice Shelves NIOZ Repository (Royal Netherlands Institute for Sea Research) Arctic Quaternary Science Reviews 176 1 28 |
institution |
Open Polar |
collection |
NIOZ Repository (Royal Netherlands Institute for Sea Research) |
op_collection_id |
ftnioz |
language |
English |
description |
Studies of past glacial cycles yield critical information about climate and sea-level (ice-volume) variability,including the sensitivity of climate to radiative change, and impacts of crustal rebound on sealevelreconstructions for past interglacials. Here we identify significant differences between the lastand penultimate glacial maxima (LGM and PGM) in terms of global volume and distribution of land ice,despite similar temperatures and radiative forcing. Our analysis challenges conventional views of relationshipsbetween global ice volume, sea level, seawater oxygen isotope values, and deep-sea temperature,and supports the potential presence of large floating Arctic ice shelves during the PGM. Theexistence of different glacial ‘modes’ calls for focussed research on the complex processes behind ice-agedevelopment. We present a glacioisostatic assessment to demonstrate how a different PGM ice-sheetconfiguration might affect sea-level estimates for the last interglacial. Results suggest that this mayalter existing last interglacial sea-level estimates, which often use an LGM-like ice configuration, byseveral metres (likely upward). |
format |
Article in Journal/Newspaper |
author |
Rohling, E.J. Hibbert, F.D. Williams, F.H. Grant, K.M. Marino, G. Foster, G.L. Hennekam, R. de Lange, G.J. Roberts, A.P. Yu, J. Webster, J.M. Yokoyama, Y. |
spellingShingle |
Rohling, E.J. Hibbert, F.D. Williams, F.H. Grant, K.M. Marino, G. Foster, G.L. Hennekam, R. de Lange, G.J. Roberts, A.P. Yu, J. Webster, J.M. Yokoyama, Y. Differences between the last two glacial maxima and implications for ice-sheet, δ 18 O, and sea-level reconstructions |
author_facet |
Rohling, E.J. Hibbert, F.D. Williams, F.H. Grant, K.M. Marino, G. Foster, G.L. Hennekam, R. de Lange, G.J. Roberts, A.P. Yu, J. Webster, J.M. Yokoyama, Y. |
author_sort |
Rohling, E.J. |
title |
Differences between the last two glacial maxima and implications for ice-sheet, δ 18 O, and sea-level reconstructions |
title_short |
Differences between the last two glacial maxima and implications for ice-sheet, δ 18 O, and sea-level reconstructions |
title_full |
Differences between the last two glacial maxima and implications for ice-sheet, δ 18 O, and sea-level reconstructions |
title_fullStr |
Differences between the last two glacial maxima and implications for ice-sheet, δ 18 O, and sea-level reconstructions |
title_full_unstemmed |
Differences between the last two glacial maxima and implications for ice-sheet, δ 18 O, and sea-level reconstructions |
title_sort |
differences between the last two glacial maxima and implications for ice-sheet, δ 18 o, and sea-level reconstructions |
publishDate |
2017 |
url |
https://www.vliz.be/imisdocs/publications/22/309422.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice Sheet Ice Shelves |
genre_facet |
Arctic Ice Sheet Ice Shelves |
op_source |
%3Ci%3EQuat.+Sci.+Rev.+176%3C%2Fi%3E%3A+1-28.+%3Ca+href%3D%22https%3A%2F%2Fdoi.org%2F10.1016%2Fj.quascirev.2017.09.009%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdoi.org%2F10.1016%2Fj.quascirev.2017.09.009%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000416194300001 info:eu-repo/semantics/altIdentifier/doi/.org/10.1016/j.quascirev.2017.09.009 https://www.vliz.be/imisdocs/publications/22/309422.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2017.09.009 |
container_title |
Quaternary Science Reviews |
container_volume |
176 |
container_start_page |
1 |
op_container_end_page |
28 |
_version_ |
1766336098818064384 |