Vertical Land Motion From Present‐Day Deglaciation in the Wider Arctic
Vertical land motion (VLM) from past and ongoing glacial changes can amplify or mitigate ongoing relative sea level change.We present a high-resolution VLM model for the wider Arctic, that includes both present-day ice loading (PDIL) and glacial isostatic adjustment (GIA). The study shows that the n...
Published in: | Geophysical Research Letters |
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Language: | English |
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2020
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Online Access: | https://orbit.dtu.dk/en/publications/d8b05d51-96c4-4e84-acec-1a6b0fc0e937 https://doi.org/10.1029/2020GL088144 https://backend.orbit.dtu.dk/ws/files/222263212/2020GL088144.pdf https://doi.org/10.11583/DTU.12554489.v1 |
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ftdtupubl:oai:pure.atira.dk:publications/d8b05d51-96c4-4e84-acec-1a6b0fc0e937 2024-06-09T07:42:24+00:00 Vertical Land Motion From Present‐Day Deglaciation in the Wider Arctic Ludwigsen, Carsten Ankjær Khan, Shfaqat Abbas Andersen, Ole Baltazar Marzeion, Ben 2020 application/pdf https://orbit.dtu.dk/en/publications/d8b05d51-96c4-4e84-acec-1a6b0fc0e937 https://doi.org/10.1029/2020GL088144 https://backend.orbit.dtu.dk/ws/files/222263212/2020GL088144.pdf https://doi.org/10.11583/DTU.12554489.v1 eng eng https://orbit.dtu.dk/en/publications/d8b05d51-96c4-4e84-acec-1a6b0fc0e937 info:eu-repo/semantics/openAccess Ludwigsen , C A , Khan , S A , Andersen , O B & Marzeion , B 2020 , ' Vertical Land Motion From Present‐Day Deglaciation in the Wider Arctic ' , Geophysical Research Letters , vol. 47 , no. 19 , e2020GL088144 . https://doi.org/10.1029/2020GL088144 article 2020 ftdtupubl https://doi.org/10.1029/2020GL08814410.11583/DTU.12554489.v1 2024-05-15T00:13:14Z Vertical land motion (VLM) from past and ongoing glacial changes can amplify or mitigate ongoing relative sea level change.We present a high-resolution VLM model for the wider Arctic, that includes both present-day ice loading (PDIL) and glacial isostatic adjustment (GIA). The study shows that the nonlinear elastic uplift from PDIL is significant (0.5 –1 mm yr −1 ) in most of the wider Arctic and exceeds GIA at 15 of 54 Arctic GNSS sites, including sites in nonglaciated areas of the North Sea region and the east coast of North America. Thereby the sea level change from PDIL (1.85mm yr−1) is significantly mitigated from VLM caused by PDIL. The combined VLM model was consistent with measured VLM at 85% of the GNSS sites (R = 0.77) and outperformed a GIA-only model (R = 0.64). Deviations from GNSS-measured VLM can be attributed to local circumstances causing VLM. Article in Journal/Newspaper Arctic Arctic Technical University of Denmark: DTU Orbit Arctic Geophysical Research Letters 47 19 |
institution |
Open Polar |
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Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
description |
Vertical land motion (VLM) from past and ongoing glacial changes can amplify or mitigate ongoing relative sea level change.We present a high-resolution VLM model for the wider Arctic, that includes both present-day ice loading (PDIL) and glacial isostatic adjustment (GIA). The study shows that the nonlinear elastic uplift from PDIL is significant (0.5 –1 mm yr −1 ) in most of the wider Arctic and exceeds GIA at 15 of 54 Arctic GNSS sites, including sites in nonglaciated areas of the North Sea region and the east coast of North America. Thereby the sea level change from PDIL (1.85mm yr−1) is significantly mitigated from VLM caused by PDIL. The combined VLM model was consistent with measured VLM at 85% of the GNSS sites (R = 0.77) and outperformed a GIA-only model (R = 0.64). Deviations from GNSS-measured VLM can be attributed to local circumstances causing VLM. |
format |
Article in Journal/Newspaper |
author |
Ludwigsen, Carsten Ankjær Khan, Shfaqat Abbas Andersen, Ole Baltazar Marzeion, Ben |
spellingShingle |
Ludwigsen, Carsten Ankjær Khan, Shfaqat Abbas Andersen, Ole Baltazar Marzeion, Ben Vertical Land Motion From Present‐Day Deglaciation in the Wider Arctic |
author_facet |
Ludwigsen, Carsten Ankjær Khan, Shfaqat Abbas Andersen, Ole Baltazar Marzeion, Ben |
author_sort |
Ludwigsen, Carsten Ankjær |
title |
Vertical Land Motion From Present‐Day Deglaciation in the Wider Arctic |
title_short |
Vertical Land Motion From Present‐Day Deglaciation in the Wider Arctic |
title_full |
Vertical Land Motion From Present‐Day Deglaciation in the Wider Arctic |
title_fullStr |
Vertical Land Motion From Present‐Day Deglaciation in the Wider Arctic |
title_full_unstemmed |
Vertical Land Motion From Present‐Day Deglaciation in the Wider Arctic |
title_sort |
vertical land motion from present‐day deglaciation in the wider arctic |
publishDate |
2020 |
url |
https://orbit.dtu.dk/en/publications/d8b05d51-96c4-4e84-acec-1a6b0fc0e937 https://doi.org/10.1029/2020GL088144 https://backend.orbit.dtu.dk/ws/files/222263212/2020GL088144.pdf https://doi.org/10.11583/DTU.12554489.v1 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic |
genre_facet |
Arctic Arctic |
op_source |
Ludwigsen , C A , Khan , S A , Andersen , O B & Marzeion , B 2020 , ' Vertical Land Motion From Present‐Day Deglaciation in the Wider Arctic ' , Geophysical Research Letters , vol. 47 , no. 19 , e2020GL088144 . https://doi.org/10.1029/2020GL088144 |
op_relation |
https://orbit.dtu.dk/en/publications/d8b05d51-96c4-4e84-acec-1a6b0fc0e937 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2020GL08814410.11583/DTU.12554489.v1 |
container_title |
Geophysical Research Letters |
container_volume |
47 |
container_issue |
19 |
_version_ |
1801371287381082112 |