Estimating the extent of Antarctic summer sea ice during the Heroic Age of Antarctic 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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European Geosciences Union
2016
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Online Access: | https://centaur.reading.ac.uk/68171/ https://centaur.reading.ac.uk/68171/7/tc-10-2721-2016.pdf https://centaur.reading.ac.uk/68171/1/tc-2016-90.pdf |
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ftunivreading:oai:centaur.reading.ac.uk:68171 2024-09-15T17:48:11+00:00 Estimating the extent of Antarctic summer sea ice during the Heroic Age of Antarctic Exploration Edinburgh, Tom Day, Jonny J. 2016-11-21 text https://centaur.reading.ac.uk/68171/ https://centaur.reading.ac.uk/68171/7/tc-10-2721-2016.pdf https://centaur.reading.ac.uk/68171/1/tc-2016-90.pdf en eng European Geosciences Union https://centaur.reading.ac.uk/68171/7/tc-10-2721-2016.pdf https://centaur.reading.ac.uk/68171/1/tc-2016-90.pdf Edinburgh, T. and Day, J. J. <https://centaur.reading.ac.uk/view/creators/90004387.html> (2016) Estimating the extent of Antarctic summer sea ice during the Heroic Age of Antarctic Exploration. The Cryosphere, 10 (6). pp. 2721-2730. ISSN 1994-0424 doi: https://doi.org/10.5194/tc-10-2721-2016 <https://doi.org/10.5194/tc-10-2721-2016> cc_by Article PeerReviewed 2016 ftunivreading https://doi.org/10.5194/tc-10-2721-2016 2024-08-05T23:38:49Z 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 Climate change Sea ice The Cryosphere Weddell Sea CentAUR: Central Archive at the University of Reading The Cryosphere 10 6 2721 2730 |
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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 Antarctic 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 Antarctic Exploration |
title_short |
Estimating the extent of Antarctic summer sea ice during the Heroic Age of Antarctic Exploration |
title_full |
Estimating the extent of Antarctic summer sea ice during the Heroic Age of Antarctic Exploration |
title_fullStr |
Estimating the extent of Antarctic summer sea ice during the Heroic Age of Antarctic Exploration |
title_full_unstemmed |
Estimating the extent of Antarctic summer sea ice during the Heroic Age of Antarctic Exploration |
title_sort |
estimating the extent of antarctic summer sea ice during the heroic age of antarctic exploration |
publisher |
European Geosciences Union |
publishDate |
2016 |
url |
https://centaur.reading.ac.uk/68171/ https://centaur.reading.ac.uk/68171/7/tc-10-2721-2016.pdf https://centaur.reading.ac.uk/68171/1/tc-2016-90.pdf |
genre |
Antarc* Antarctic Antarctica Climate change Sea ice The Cryosphere Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica Climate change Sea ice The Cryosphere Weddell Sea |
op_relation |
https://centaur.reading.ac.uk/68171/7/tc-10-2721-2016.pdf https://centaur.reading.ac.uk/68171/1/tc-2016-90.pdf Edinburgh, T. and Day, J. J. <https://centaur.reading.ac.uk/view/creators/90004387.html> (2016) Estimating the extent of Antarctic summer sea ice during the Heroic Age of Antarctic Exploration. The Cryosphere, 10 (6). pp. 2721-2730. ISSN 1994-0424 doi: https://doi.org/10.5194/tc-10-2721-2016 <https://doi.org/10.5194/tc-10-2721-2016> |
op_rights |
cc_by |
op_doi |
https://doi.org/10.5194/tc-10-2721-2016 |
container_title |
The Cryosphere |
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10 |
container_issue |
6 |
container_start_page |
2721 |
op_container_end_page |
2730 |
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1810289327188475904 |