Estimating the extent of Antarctic summer sea ice during the Heroic Age of Exploration
In stark contrast to the sharp decline in Arctic sea ice, there has been a steady increase in ice extent around Antarctica during the last three decades, especially in the Weddell and Ross seas. In general, climate models do not to capture this trend and a lack of information about sea ice coverage...
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ftunivreading:oai:centaur.reading.ac.uk:65642 2023-09-05T13:12:58+02:00 Estimating the extent of Antarctic summer sea ice during the Heroic Age of Exploration Edinburgh, Tom Day, Jonny J. 2016-04-29 text https://centaur.reading.ac.uk/65642/ https://centaur.reading.ac.uk/65642/1/tc-2016-90.pdf https://doi.org/10.5194/tc-2016-90 en eng Copernicus Publications https://centaur.reading.ac.uk/65642/1/tc-2016-90.pdf Edinburgh, Tom and Day, Jonny J. (2016) Estimating the extent of Antarctic summer sea ice during the Heroic Age of Exploration. Cryosphere Discussions. ISSN 1994-0440 doi: https://doi.org/10.5194/tc-2016-90 <https://doi.org/10.5194/tc-2016-90> Article PeerReviewed 2016 ftunivreading https://doi.org/10.5194/tc-2016-90 2023-08-14T18:01:15Z In stark contrast to the sharp decline in Arctic sea ice, there has been a steady increase in ice extent around Antarctica during the last three decades, especially in the Weddell and Ross seas. In general, climate models do not to capture this trend and a lack of information about sea ice coverage in the pre-satellite period limits our ability to quantify the sensitivity of sea ice to climate change and robustly validate climate models. However, evidence of the presence and nature of sea ice was often recorded during early Antarctic exploration, though these sources have not previously been explored or exploited until now. We have analysed observations of the summer sea ice edge from the ship logbooks of explorers such as Robert Falcon Scott, Ernest Shackleton and their contemporaries during the Heroic Age of Antarctic Exploration (1897–1917), and in this study we compare these to satellite observations from the period 1989–2014, offering insight into the ice conditions of this period, from direct observations, for the first time. This comparison shows that the summer sea ice edge was between 1.0 and 1.7° further north in the Weddell Sea during this period but that ice conditions were surprisingly comparable to the present day in other sectors. Article in Journal/Newspaper Antarc* Antarctic Antarctica Arctic Climate change Sea ice Weddell Sea CentAUR: Central Archive at the University of Reading Arctic Antarctic Weddell Sea Shackleton Weddell |
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Open Polar |
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CentAUR: Central Archive at the University of Reading |
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ftunivreading |
language |
English |
description |
In stark contrast to the sharp decline in Arctic sea ice, there has been a steady increase in ice extent around Antarctica during the last three decades, especially in the Weddell and Ross seas. In general, climate models do not to capture this trend and a lack of information about sea ice coverage in the pre-satellite period limits our ability to quantify the sensitivity of sea ice to climate change and robustly validate climate models. However, evidence of the presence and nature of sea ice was often recorded during early Antarctic exploration, though these sources have not previously been explored or exploited until now. We have analysed observations of the summer sea ice edge from the ship logbooks of explorers such as Robert Falcon Scott, Ernest Shackleton and their contemporaries during the Heroic Age of Antarctic Exploration (1897–1917), and in this study we compare these to satellite observations from the period 1989–2014, offering insight into the ice conditions of this period, from direct observations, for the first time. This comparison shows that the summer sea ice edge was between 1.0 and 1.7° further north in the Weddell Sea during this period but that ice conditions were surprisingly comparable to the present day in other sectors. |
format |
Article in Journal/Newspaper |
author |
Edinburgh, Tom Day, Jonny J. |
spellingShingle |
Edinburgh, Tom Day, Jonny J. Estimating the extent of Antarctic summer sea ice during the Heroic Age of Exploration |
author_facet |
Edinburgh, Tom Day, Jonny J. |
author_sort |
Edinburgh, Tom |
title |
Estimating the extent of Antarctic summer sea ice during the Heroic Age of Exploration |
title_short |
Estimating the extent of Antarctic summer sea ice during the Heroic Age of Exploration |
title_full |
Estimating the extent of Antarctic summer sea ice during the Heroic Age of Exploration |
title_fullStr |
Estimating the extent of Antarctic summer sea ice during the Heroic Age of Exploration |
title_full_unstemmed |
Estimating the extent of Antarctic summer sea ice during the Heroic Age of Exploration |
title_sort |
estimating the extent of antarctic summer sea ice during the heroic age of exploration |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://centaur.reading.ac.uk/65642/ https://centaur.reading.ac.uk/65642/1/tc-2016-90.pdf https://doi.org/10.5194/tc-2016-90 |
geographic |
Arctic Antarctic Weddell Sea Shackleton Weddell |
geographic_facet |
Arctic Antarctic Weddell Sea Shackleton Weddell |
genre |
Antarc* Antarctic Antarctica Arctic Climate change Sea ice Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica Arctic Climate change Sea ice Weddell Sea |
op_relation |
https://centaur.reading.ac.uk/65642/1/tc-2016-90.pdf Edinburgh, Tom and Day, Jonny J. (2016) Estimating the extent of Antarctic summer sea ice during the Heroic Age of Exploration. Cryosphere Discussions. ISSN 1994-0440 doi: https://doi.org/10.5194/tc-2016-90 <https://doi.org/10.5194/tc-2016-90> |
op_doi |
https://doi.org/10.5194/tc-2016-90 |
_version_ |
1776202653106176000 |