The subglacial imprint of the last Newfoundland Ice Sheet, Canada.
The former Newfoundland Ice Sheet was situated on the fringes of the northeast Atlantic Ocean during the Wisconsinan glaciation (∼80–10 ka BP). Its geographic position indicates that it was likely to have been influenced by a number of external and internal forcing mechanisms including configuration...
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ftdatacite:10.6084/m9.figshare.1411216 2023-05-15T16:39:39+02:00 The subglacial imprint of the last Newfoundland Ice Sheet, Canada. McHenry, Maureen Dunlop, Paul 2016 https://dx.doi.org/10.6084/m9.figshare.1411216 https://tandf.figshare.com/articles/journal_contribution/The_subglacial_imprint_of_the_last_Newfoundland_Ice_Sheet_Canada_/1411216/1 unknown Taylor & Francis https://dx.doi.org/10.1080/17445647.2015.1044038 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY 29999 Physical Sciences not elsewhere classified FOS Physical sciences Medicine Neuroscience Pharmacology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences 20199 Astronomical and Space Sciences not elsewhere classified Sociology FOS Sociology 69999 Biological Sciences not elsewhere classified Cancer Text article-journal Journal contribution ScholarlyArticle 2016 ftdatacite https://doi.org/10.6084/m9.figshare.1411216 https://doi.org/10.1080/17445647.2015.1044038 2021-11-05T12:55:41Z The former Newfoundland Ice Sheet was situated on the fringes of the northeast Atlantic Ocean during the Wisconsinan glaciation (∼80–10 ka BP). Its geographic position indicates that it was likely to have been influenced by a number of external and internal forcing mechanisms including configuration changes in the Laurentide Ice Sheet with which it converged during the last glacial maximum, ice streams, changes in oceanic circulation and fluctuating sea levels. This makes Newfoundland a key location for investigating the dynamic response of ice sheets to these types of internal and external drivers. An established methodology for investigating ice sheet dynamics is to use the landform record to reconstruct the dynamic behaviour and configuration of the ice sheet. This provides a relative chronology of former ice sheet events during glacial cycles. A fundamental requirement of this approach is a detailed glacial geomorphology map that records the spatial distribution of individual subglacial bedforms across the former ice sheet bed. This paper presents a new subglacial bedform map of the Island of Newfoundland. It was produced as part of a mapping programme which used 10 m resolution Satellite Pour l'Observation de la Terre satellite imagery, Shuttle Radar Topography Mission and Canadian Digital Elevation Data. The map records the spatial distribution of ∼126,000 individually mapped glacial lineations and ribbed moraines and extends the number and spatial extent of each landform across the island. It is a new data set which has the potential to provide important insights into former ice sheet behaviour in this region. Text Ice Sheet Newfoundland Northeast Atlantic DataCite Metadata Store (German National Library of Science and Technology) Canada |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
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topic |
29999 Physical Sciences not elsewhere classified FOS Physical sciences Medicine Neuroscience Pharmacology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences 20199 Astronomical and Space Sciences not elsewhere classified Sociology FOS Sociology 69999 Biological Sciences not elsewhere classified Cancer |
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29999 Physical Sciences not elsewhere classified FOS Physical sciences Medicine Neuroscience Pharmacology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences 20199 Astronomical and Space Sciences not elsewhere classified Sociology FOS Sociology 69999 Biological Sciences not elsewhere classified Cancer McHenry, Maureen Dunlop, Paul The subglacial imprint of the last Newfoundland Ice Sheet, Canada. |
topic_facet |
29999 Physical Sciences not elsewhere classified FOS Physical sciences Medicine Neuroscience Pharmacology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology FOS Biological sciences 20199 Astronomical and Space Sciences not elsewhere classified Sociology FOS Sociology 69999 Biological Sciences not elsewhere classified Cancer |
description |
The former Newfoundland Ice Sheet was situated on the fringes of the northeast Atlantic Ocean during the Wisconsinan glaciation (∼80–10 ka BP). Its geographic position indicates that it was likely to have been influenced by a number of external and internal forcing mechanisms including configuration changes in the Laurentide Ice Sheet with which it converged during the last glacial maximum, ice streams, changes in oceanic circulation and fluctuating sea levels. This makes Newfoundland a key location for investigating the dynamic response of ice sheets to these types of internal and external drivers. An established methodology for investigating ice sheet dynamics is to use the landform record to reconstruct the dynamic behaviour and configuration of the ice sheet. This provides a relative chronology of former ice sheet events during glacial cycles. A fundamental requirement of this approach is a detailed glacial geomorphology map that records the spatial distribution of individual subglacial bedforms across the former ice sheet bed. This paper presents a new subglacial bedform map of the Island of Newfoundland. It was produced as part of a mapping programme which used 10 m resolution Satellite Pour l'Observation de la Terre satellite imagery, Shuttle Radar Topography Mission and Canadian Digital Elevation Data. The map records the spatial distribution of ∼126,000 individually mapped glacial lineations and ribbed moraines and extends the number and spatial extent of each landform across the island. It is a new data set which has the potential to provide important insights into former ice sheet behaviour in this region. |
format |
Text |
author |
McHenry, Maureen Dunlop, Paul |
author_facet |
McHenry, Maureen Dunlop, Paul |
author_sort |
McHenry, Maureen |
title |
The subglacial imprint of the last Newfoundland Ice Sheet, Canada. |
title_short |
The subglacial imprint of the last Newfoundland Ice Sheet, Canada. |
title_full |
The subglacial imprint of the last Newfoundland Ice Sheet, Canada. |
title_fullStr |
The subglacial imprint of the last Newfoundland Ice Sheet, Canada. |
title_full_unstemmed |
The subglacial imprint of the last Newfoundland Ice Sheet, Canada. |
title_sort |
subglacial imprint of the last newfoundland ice sheet, canada. |
publisher |
Taylor & Francis |
publishDate |
2016 |
url |
https://dx.doi.org/10.6084/m9.figshare.1411216 https://tandf.figshare.com/articles/journal_contribution/The_subglacial_imprint_of_the_last_Newfoundland_Ice_Sheet_Canada_/1411216/1 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Ice Sheet Newfoundland Northeast Atlantic |
genre_facet |
Ice Sheet Newfoundland Northeast Atlantic |
op_relation |
https://dx.doi.org/10.1080/17445647.2015.1044038 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.1411216 https://doi.org/10.1080/17445647.2015.1044038 |
_version_ |
1766029977949569024 |