Elevation Changes of the Fennoscandian Ice Sheet Interior During the Last Deglaciation

The dynamics and paleo‐glaciology of ice sheet interiors during the last deglaciation are poorly constrained, hindering ice sheet model. We provide direct evidence of Fennoscandian Ice Sheet (FIS) interior behavior during deglaciation through surface exposure dating. Our results demonstrate early th...

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Main Authors: Lane, TP, Paasche, Ø, Kvisvik, B, Adamson, KR, Rodés, Á, Patton, H, Gomez, N, Gheorghiu, D, Bakke, J, Hubbard, A
Format: Article in Journal/Newspaper
Language:English
Published: American Geophysical Union (AGU) 2020
Subjects:
Fennoscandian
Ice Sheet
Online Access:https://e-space.mmu.ac.uk/626231/1/Lane_et_al_2020_Snohetta.pdf
id ftmanchuniv:oai:e-space.mmu.ac.uk:626231
record_format openpolar
spelling ftmanchuniv:oai:e-space.mmu.ac.uk:626231 2024-05-19T07:40:11+00:00 Elevation Changes of the Fennoscandian Ice Sheet Interior During the Last Deglaciation Lane, TP Paasche, Ø Kvisvik, B Adamson, KR Rodés, Á Patton, H Gomez, N Gheorghiu, D Bakke, J Hubbard, A 2020-06-20 text https://e-space.mmu.ac.uk/626231/1/Lane_et_al_2020_Snohetta.pdf en eng American Geophysical Union (AGU) https://e-space.mmu.ac.uk/626231/ https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2020GL088796 10.1029/2020gl088796 https://e-space.mmu.ac.uk/626231/1/Lane_et_al_2020_Snohetta.pdf Lane, TP </view/creators/Lane=3ATP=3A=3A.html>, Paasche, Ø </view/creators/Paasche=3A=D8=3A=3A.html>, Kvisvik, B </view/creators/Kvisvik=3AB=3A=3A.html>, Adamson, KR </view/creators/Adamson=3AKR=3A=3A.html>, Rodés, Á </view/creators/Rod=E9s=3A=C1=3A=3A.html>, Patton, H </view/creators/Patton=3AH=3A=3A.html>, Gomez, N </view/creators/Gomez=3AN=3A=3A.html>, Gheorghiu, D </view/creators/Gheorghiu=3AD=3A=3A.html>, Bakke, J </view/creators/Bakke=3AJ=3A=3A.html> and Hubbard, A </view/creators/Hubbard=3AA=3A=3A.html> (2020) Elevation Changes of the Fennoscandian Ice Sheet Interior During the Last Deglaciation. Geophysical Research Letters, 47 (14). ISSN 0094-8276 cc_by_4 info:eu-repo/semantics/openAccess Article PeerReviewed 2020 ftmanchuniv 2024-04-30T23:56:54Z The dynamics and paleo‐glaciology of ice sheet interiors during the last deglaciation are poorly constrained, hindering ice sheet model. We provide direct evidence of Fennoscandian Ice Sheet (FIS) interior behavior during deglaciation through surface exposure dating. Our results demonstrate early thinning of the FIS, prior to the Younger Dryas (YD, 12.8–11.7 ka). Interior thinning in central Norway was concurrent with retreat along the coastline, exposing ice‐free mountainous tracts, potentially as early as 20–15 ka. The FIS then formed moraines in these ice‐free tracts during the YD. This is contrary to current hypotheses advocating a landscape fully covered by cold, inactive ice during this period. Present empirical and model reconstructions fail to capture rapid interior downwastage, increasing uncertainties in ice sheet volume estimates and sea level contributions. Article in Journal/Newspaper Fennoscandian Ice Sheet eSpace - Manchester Metropolitan University's Research Repository
institution Open Polar
collection eSpace - Manchester Metropolitan University's Research Repository
op_collection_id ftmanchuniv
language English
description The dynamics and paleo‐glaciology of ice sheet interiors during the last deglaciation are poorly constrained, hindering ice sheet model. We provide direct evidence of Fennoscandian Ice Sheet (FIS) interior behavior during deglaciation through surface exposure dating. Our results demonstrate early thinning of the FIS, prior to the Younger Dryas (YD, 12.8–11.7 ka). Interior thinning in central Norway was concurrent with retreat along the coastline, exposing ice‐free mountainous tracts, potentially as early as 20–15 ka. The FIS then formed moraines in these ice‐free tracts during the YD. This is contrary to current hypotheses advocating a landscape fully covered by cold, inactive ice during this period. Present empirical and model reconstructions fail to capture rapid interior downwastage, increasing uncertainties in ice sheet volume estimates and sea level contributions.
format Article in Journal/Newspaper
author Lane, TP
Paasche, Ø
Kvisvik, B
Adamson, KR
Rodés, Á
Patton, H
Gomez, N
Gheorghiu, D
Bakke, J
Hubbard, A
spellingShingle Lane, TP
Paasche, Ø
Kvisvik, B
Adamson, KR
Rodés, Á
Patton, H
Gomez, N
Gheorghiu, D
Bakke, J
Hubbard, A
Elevation Changes of the Fennoscandian Ice Sheet Interior During the Last Deglaciation
author_facet Lane, TP
Paasche, Ø
Kvisvik, B
Adamson, KR
Rodés, Á
Patton, H
Gomez, N
Gheorghiu, D
Bakke, J
Hubbard, A
author_sort Lane, TP
title Elevation Changes of the Fennoscandian Ice Sheet Interior During the Last Deglaciation
title_short Elevation Changes of the Fennoscandian Ice Sheet Interior During the Last Deglaciation
title_full Elevation Changes of the Fennoscandian Ice Sheet Interior During the Last Deglaciation
title_fullStr Elevation Changes of the Fennoscandian Ice Sheet Interior During the Last Deglaciation
title_full_unstemmed Elevation Changes of the Fennoscandian Ice Sheet Interior During the Last Deglaciation
title_sort elevation changes of the fennoscandian ice sheet interior during the last deglaciation
publisher American Geophysical Union (AGU)
publishDate 2020
url https://e-space.mmu.ac.uk/626231/1/Lane_et_al_2020_Snohetta.pdf
genre Fennoscandian
Ice Sheet
genre_facet Fennoscandian
Ice Sheet
op_relation https://e-space.mmu.ac.uk/626231/
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2020GL088796
10.1029/2020gl088796
https://e-space.mmu.ac.uk/626231/1/Lane_et_al_2020_Snohetta.pdf
Lane, TP </view/creators/Lane=3ATP=3A=3A.html>, Paasche, Ø </view/creators/Paasche=3A=D8=3A=3A.html>, Kvisvik, B </view/creators/Kvisvik=3AB=3A=3A.html>, Adamson, KR </view/creators/Adamson=3AKR=3A=3A.html>, Rodés, Á </view/creators/Rod=E9s=3A=C1=3A=3A.html>, Patton, H </view/creators/Patton=3AH=3A=3A.html>, Gomez, N </view/creators/Gomez=3AN=3A=3A.html>, Gheorghiu, D </view/creators/Gheorghiu=3AD=3A=3A.html>, Bakke, J </view/creators/Bakke=3AJ=3A=3A.html> and Hubbard, A </view/creators/Hubbard=3AA=3A=3A.html> (2020) Elevation Changes of the Fennoscandian Ice Sheet Interior During the Last Deglaciation. Geophysical Research Letters, 47 (14). ISSN 0094-8276
op_rights cc_by_4
info:eu-repo/semantics/openAccess
_version_ 1799479762930892800

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