Numerical ice sheet modeling of Heinrich Events ...
Layers of Ice-Rafted Debris (IRD) found in sediment cores from the North Atlantic are attributed to quasi-periodic episodes of iceberg discharge from the Hudson Bay/Hudson Strait region. At least six such so-called Heinrich Events (HEs) have been identified during the Last Glacial Cycle (LGC). Due t...
Main Author: | |
---|---|
Format: | Text |
Language: | English |
Published: |
Memorial University of Newfoundland
2024
|
Subjects: | |
Online Access: | https://dx.doi.org/10.48336/drf6-pa59 https://research.library.mun.ca/16370/ |
id |
ftdatacite:10.48336/drf6-pa59 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.48336/drf6-pa59 2024-04-28T08:23:16+00:00 Numerical ice sheet modeling of Heinrich Events ... Hank, Kevin 2024 https://dx.doi.org/10.48336/drf6-pa59 https://research.library.mun.ca/16370/ en eng Memorial University of Newfoundland article-journal Text ScholarlyArticle 2024 ftdatacite https://doi.org/10.48336/drf6-pa59 2024-04-02T11:01:52Z Layers of Ice-Rafted Debris (IRD) found in sediment cores from the North Atlantic are attributed to quasi-periodic episodes of iceberg discharge from the Hudson Bay/Hudson Strait region. At least six such so-called Heinrich Events (HEs) have been identified during the Last Glacial Cycle (LGC). Due to the associated release of freshwater, HEs are inferred to cause climatic changes on a global scale. Several hypotheses for generating HEs, including an internally driven binge-purge model, an ice shelf buildup-collapse mechanism, and a hypothesis encompassing underwater melt modulated by Glacial Isostatic Adjustment (GIA), have been proposed in the literature. However, a comprehensive study identifying the role of individual system processes such as GIA is still missing. Here, I use 3D thermo-mechanically coupled ice sheet models, primarily the Glacial Systems Model (GSM), to identify the numerically most robust model configuration within a HE framework. Based on these results, I determine the importance of ... Text Hudson Bay Hudson Strait Ice Sheet Ice Shelf North Atlantic DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
description |
Layers of Ice-Rafted Debris (IRD) found in sediment cores from the North Atlantic are attributed to quasi-periodic episodes of iceberg discharge from the Hudson Bay/Hudson Strait region. At least six such so-called Heinrich Events (HEs) have been identified during the Last Glacial Cycle (LGC). Due to the associated release of freshwater, HEs are inferred to cause climatic changes on a global scale. Several hypotheses for generating HEs, including an internally driven binge-purge model, an ice shelf buildup-collapse mechanism, and a hypothesis encompassing underwater melt modulated by Glacial Isostatic Adjustment (GIA), have been proposed in the literature. However, a comprehensive study identifying the role of individual system processes such as GIA is still missing. Here, I use 3D thermo-mechanically coupled ice sheet models, primarily the Glacial Systems Model (GSM), to identify the numerically most robust model configuration within a HE framework. Based on these results, I determine the importance of ... |
format |
Text |
author |
Hank, Kevin |
spellingShingle |
Hank, Kevin Numerical ice sheet modeling of Heinrich Events ... |
author_facet |
Hank, Kevin |
author_sort |
Hank, Kevin |
title |
Numerical ice sheet modeling of Heinrich Events ... |
title_short |
Numerical ice sheet modeling of Heinrich Events ... |
title_full |
Numerical ice sheet modeling of Heinrich Events ... |
title_fullStr |
Numerical ice sheet modeling of Heinrich Events ... |
title_full_unstemmed |
Numerical ice sheet modeling of Heinrich Events ... |
title_sort |
numerical ice sheet modeling of heinrich events ... |
publisher |
Memorial University of Newfoundland |
publishDate |
2024 |
url |
https://dx.doi.org/10.48336/drf6-pa59 https://research.library.mun.ca/16370/ |
genre |
Hudson Bay Hudson Strait Ice Sheet Ice Shelf North Atlantic |
genre_facet |
Hudson Bay Hudson Strait Ice Sheet Ice Shelf North Atlantic |
op_doi |
https://doi.org/10.48336/drf6-pa59 |
_version_ |
1797584330016423936 |