Post-glacial relative sea-level observations from Ireland and their role in glacial rebound modelling

PUBLISHED The British Isles have been the focus of a number of recent modelling studies owing to the existence of a high-quality sea-level dataset for this region and the suitability of these data for constraining shallow earth viscosity structure, local to regional ice sheet histories and the magni...

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Published in:Journal of Quaternary Science
Main Author: EDWARDS, ROBIN JAMES
Format: Article in Journal/Newspaper
Language:English
Published: John Wiley 2008
Subjects:
LGM
Online Access:http://hdl.handle.net/2262/33067
http://people.tcd.ie/edwardsr
https://doi.org/10.1002/jqs.1119
id fttrinitycoll:oai:tara.tcd.ie:2262/33067
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spelling fttrinitycoll:oai:tara.tcd.ie:2262/33067 2023-05-15T16:40:07+02:00 Post-glacial relative sea-level observations from Ireland and their role in glacial rebound modelling EDWARDS, ROBIN JAMES 2008 175 192 2278232 bytes application/pdf http://hdl.handle.net/2262/33067 http://people.tcd.ie/edwardsr https://doi.org/10.1002/jqs.1119 en eng John Wiley Journal of Quaternary Science 23 2 Brooks, A.J., Bradley, S.L., Edwards, R.J., Milne and G.A., Shennan, I. `Post-glacial relative sea-level observations from Ireland and their role in glacial rebound modelling? in Journal of Quaternary Science, 23, (2), 2008, pp 175 - 192 Y http://hdl.handle.net/2262/33067 http://people.tcd.ie/edwardsr http://dx.doi.org/10.1002/jqs.1119 Y glacio-isostatic adjustment relative sea-level LGM Ireland ice sheet Journal Article scholarly_publications refereed_publications 2008 fttrinitycoll https://doi.org/10.1002/jqs.1119 2020-02-16T13:48:35Z PUBLISHED The British Isles have been the focus of a number of recent modelling studies owing to the existence of a high-quality sea-level dataset for this region and the suitability of these data for constraining shallow earth viscosity structure, local to regional ice sheet histories and the magnitude/ timing of global meltwater signals. Until recently, the paucity of both glaciological and relative sea-level (RSL) data from Ireland has meant that the majority of these glacial isostatic adjustment (GIA) modelling studies of the British Isles region have tended to concentrate on reconstructing ice cover over Britain. However, the recent development of a sea-level database for Ireland along with emergence of new glaciological data on the spatial extent, thickness and deglacial chronology of the Irish Ice Sheet means it is now possible to revisit this region of the British Isles. Here, we employ these new data to constrain the evolution of the Irish Ice Sheet. We find that in order to reconcile differences between model predictions and RSL evidence, a thick, spatially extensive ice sheet of 600?700m over much of north and central Ireland is required at the LGM with very rapid deglaciation after 21 k cal. yr BP. This research was funded by an Enterprise Ireland Basic Research Grant (Edwards?Project No. SC/2003/0215/Y: Holocene Sea-Level Change and Glacio-Isostatic Adjustment in Ireland). We are grateful to James Scourse for his comments on this paper. This publication is a contribution to IGCP Project 495 `Quaternary Land? Ocean interactions: driving mechanisms and coastal responses?. Article in Journal/Newspaper Ice Sheet The University of Dublin, Trinity College: TARA (Trinity's Access to Research Archive) Journal of Quaternary Science 23 2 175 192
institution Open Polar
collection The University of Dublin, Trinity College: TARA (Trinity's Access to Research Archive)
op_collection_id fttrinitycoll
language English
topic glacio-isostatic adjustment
relative sea-level
LGM
Ireland
ice sheet
spellingShingle glacio-isostatic adjustment
relative sea-level
LGM
Ireland
ice sheet
EDWARDS, ROBIN JAMES
Post-glacial relative sea-level observations from Ireland and their role in glacial rebound modelling
topic_facet glacio-isostatic adjustment
relative sea-level
LGM
Ireland
ice sheet
description PUBLISHED The British Isles have been the focus of a number of recent modelling studies owing to the existence of a high-quality sea-level dataset for this region and the suitability of these data for constraining shallow earth viscosity structure, local to regional ice sheet histories and the magnitude/ timing of global meltwater signals. Until recently, the paucity of both glaciological and relative sea-level (RSL) data from Ireland has meant that the majority of these glacial isostatic adjustment (GIA) modelling studies of the British Isles region have tended to concentrate on reconstructing ice cover over Britain. However, the recent development of a sea-level database for Ireland along with emergence of new glaciological data on the spatial extent, thickness and deglacial chronology of the Irish Ice Sheet means it is now possible to revisit this region of the British Isles. Here, we employ these new data to constrain the evolution of the Irish Ice Sheet. We find that in order to reconcile differences between model predictions and RSL evidence, a thick, spatially extensive ice sheet of 600?700m over much of north and central Ireland is required at the LGM with very rapid deglaciation after 21 k cal. yr BP. This research was funded by an Enterprise Ireland Basic Research Grant (Edwards?Project No. SC/2003/0215/Y: Holocene Sea-Level Change and Glacio-Isostatic Adjustment in Ireland). We are grateful to James Scourse for his comments on this paper. This publication is a contribution to IGCP Project 495 `Quaternary Land? Ocean interactions: driving mechanisms and coastal responses?.
format Article in Journal/Newspaper
author EDWARDS, ROBIN JAMES
author_facet EDWARDS, ROBIN JAMES
author_sort EDWARDS, ROBIN JAMES
title Post-glacial relative sea-level observations from Ireland and their role in glacial rebound modelling
title_short Post-glacial relative sea-level observations from Ireland and their role in glacial rebound modelling
title_full Post-glacial relative sea-level observations from Ireland and their role in glacial rebound modelling
title_fullStr Post-glacial relative sea-level observations from Ireland and their role in glacial rebound modelling
title_full_unstemmed Post-glacial relative sea-level observations from Ireland and their role in glacial rebound modelling
title_sort post-glacial relative sea-level observations from ireland and their role in glacial rebound modelling
publisher John Wiley
publishDate 2008
url http://hdl.handle.net/2262/33067
http://people.tcd.ie/edwardsr
https://doi.org/10.1002/jqs.1119
genre Ice Sheet
genre_facet Ice Sheet
op_relation Journal of Quaternary Science
23
2
Brooks, A.J., Bradley, S.L., Edwards, R.J., Milne and G.A., Shennan, I. `Post-glacial relative sea-level observations from Ireland and their role in glacial rebound modelling? in Journal of Quaternary Science, 23, (2), 2008, pp 175 - 192
Y
http://hdl.handle.net/2262/33067
http://people.tcd.ie/edwardsr
http://dx.doi.org/10.1002/jqs.1119
op_rights Y
op_doi https://doi.org/10.1002/jqs.1119
container_title Journal of Quaternary Science
container_volume 23
container_issue 2
container_start_page 175
op_container_end_page 192
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