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 reconstructions. We provide direct evidence of Fennoscandian Ice Sheet (FIS) interior behavior during deglaciation through surface exposure dating. Our results demo...
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ftuglasgow:oai:eprints.gla.ac.uk:223956 2023-05-15T16:12:51+02:00 Elevation changes of the Fennoscandian Ice Sheet interior during the last deglaciation Lane, T.P. Paasche, Ø. Kvisvik, B. Adamson, K.R. Rodes, Á. Patton, H. Gomez, N. Gheorghiu, D. Bakke, J. Hubbard, A. 2020-07 text http://eprints.gla.ac.uk/223956/ http://eprints.gla.ac.uk/223956/2/223956.pdf en eng Wiley http://eprints.gla.ac.uk/223956/2/223956.pdf Lane, T.P., Paasche, Ø., Kvisvik, B., Adamson, K.R., Rodes, Á. <http://eprints.gla.ac.uk/view/author/15683.html> , Patton, H., Gomez, N., Gheorghiu, D. <http://eprints.gla.ac.uk/view/author/4244.html> , Bakke, J. and Hubbard, A. (2020) Elevation changes of the Fennoscandian Ice Sheet interior during the last deglaciation. Geophysical Research Letters <http://eprints.gla.ac.uk/view/journal_volume/Geophysical_Research_Letters.html>, 47(14), e2020GL088. (doi:10.1029/2020GL088796 <http://dx.doi.org/10.1029/2020GL088796>) cc_by_4 CC-BY Articles PeerReviewed 2020 ftuglasgow https://doi.org/10.1029/2020GL088796 2020-10-15T22:09:22Z The dynamics and paleo‐glaciology of ice sheet interiors during the last deglaciation are poorly constrained, hindering ice sheet model reconstructions. 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 University of Glasgow: Enlighten - Publications Norway Geophysical Research Letters 47 14 |
institution |
Open Polar |
collection |
University of Glasgow: Enlighten - Publications |
op_collection_id |
ftuglasgow |
language |
English |
description |
The dynamics and paleo‐glaciology of ice sheet interiors during the last deglaciation are poorly constrained, hindering ice sheet model reconstructions. 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, T.P. Paasche, Ø. Kvisvik, B. Adamson, K.R. Rodes, Á. Patton, H. Gomez, N. Gheorghiu, D. Bakke, J. Hubbard, A. |
spellingShingle |
Lane, T.P. Paasche, Ø. Kvisvik, B. Adamson, K.R. Rodes, 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, T.P. Paasche, Ø. Kvisvik, B. Adamson, K.R. Rodes, Á. Patton, H. Gomez, N. Gheorghiu, D. Bakke, J. Hubbard, A. |
author_sort |
Lane, T.P. |
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 |
Wiley |
publishDate |
2020 |
url |
http://eprints.gla.ac.uk/223956/ http://eprints.gla.ac.uk/223956/2/223956.pdf |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Fennoscandian Ice Sheet |
genre_facet |
Fennoscandian Ice Sheet |
op_relation |
http://eprints.gla.ac.uk/223956/2/223956.pdf Lane, T.P., Paasche, Ø., Kvisvik, B., Adamson, K.R., Rodes, Á. <http://eprints.gla.ac.uk/view/author/15683.html> , Patton, H., Gomez, N., Gheorghiu, D. <http://eprints.gla.ac.uk/view/author/4244.html> , Bakke, J. and Hubbard, A. (2020) Elevation changes of the Fennoscandian Ice Sheet interior during the last deglaciation. Geophysical Research Letters <http://eprints.gla.ac.uk/view/journal_volume/Geophysical_Research_Letters.html>, 47(14), e2020GL088. (doi:10.1029/2020GL088796 <http://dx.doi.org/10.1029/2020GL088796>) |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1029/2020GL088796 |
container_title |
Geophysical Research Letters |
container_volume |
47 |
container_issue |
14 |
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1765998456007032832 |