Resolving the Younger Dryas event through borehole thermometry
Abstract Meltwater influxes may partly explain the low oxygen-isotope values measured in the Dye 3 and Camp Century ire cores. This has led to speculation that Greenland may not have cooled during the Younger Dryas and underlined the need for independent checks of the oxygen-isotope record. Using op...
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Cambridge University Press (CUP)
1995
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Online Access: | http://dx.doi.org/10.1017/s0022143000017743 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000017743 |
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crcambridgeupr:10.1017/s0022143000017743 2024-03-03T08:43:56+00:00 Resolving the Younger Dryas event through borehole thermometry Firestone, John 1995 http://dx.doi.org/10.1017/s0022143000017743 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000017743 en eng Cambridge University Press (CUP) Journal of Glaciology volume 41, issue 137, page 39-50 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1995 crcambridgeupr https://doi.org/10.1017/s0022143000017743 2024-02-08T08:34:04Z Abstract Meltwater influxes may partly explain the low oxygen-isotope values measured in the Dye 3 and Camp Century ire cores. This has led to speculation that Greenland may not have cooled during the Younger Dryas and underlined the need for independent checks of the oxygen-isotope record. Using optimal control methods and heat-flow modeling, the author makes a valiant but ultimately futile attempt to distinguish the Younger Dryas event in the ice-sheet temperatures measured at Dye 3, south Greenland. The author discusses the prospects for attempting the same in the new Summit boreholes in central Greenland: how that will require more accurate temperature measurements, a coupled thermo-mechanical model and a refined uncertainty analysis. He concludes by discussing how borehole-temperature analysis may improve the climate histories determined from ire cores. Article in Journal/Newspaper Dye 3 Dye-3 Greenland Ice Sheet Journal of Glaciology Cambridge University Press Greenland Journal of Glaciology 41 137 39 50 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Firestone, John Resolving the Younger Dryas event through borehole thermometry |
topic_facet |
Earth-Surface Processes |
description |
Abstract Meltwater influxes may partly explain the low oxygen-isotope values measured in the Dye 3 and Camp Century ire cores. This has led to speculation that Greenland may not have cooled during the Younger Dryas and underlined the need for independent checks of the oxygen-isotope record. Using optimal control methods and heat-flow modeling, the author makes a valiant but ultimately futile attempt to distinguish the Younger Dryas event in the ice-sheet temperatures measured at Dye 3, south Greenland. The author discusses the prospects for attempting the same in the new Summit boreholes in central Greenland: how that will require more accurate temperature measurements, a coupled thermo-mechanical model and a refined uncertainty analysis. He concludes by discussing how borehole-temperature analysis may improve the climate histories determined from ire cores. |
format |
Article in Journal/Newspaper |
author |
Firestone, John |
author_facet |
Firestone, John |
author_sort |
Firestone, John |
title |
Resolving the Younger Dryas event through borehole thermometry |
title_short |
Resolving the Younger Dryas event through borehole thermometry |
title_full |
Resolving the Younger Dryas event through borehole thermometry |
title_fullStr |
Resolving the Younger Dryas event through borehole thermometry |
title_full_unstemmed |
Resolving the Younger Dryas event through borehole thermometry |
title_sort |
resolving the younger dryas event through borehole thermometry |
publisher |
Cambridge University Press (CUP) |
publishDate |
1995 |
url |
http://dx.doi.org/10.1017/s0022143000017743 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000017743 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Dye 3 Dye-3 Greenland Ice Sheet Journal of Glaciology |
genre_facet |
Dye 3 Dye-3 Greenland Ice Sheet Journal of Glaciology |
op_source |
Journal of Glaciology volume 41, issue 137, page 39-50 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000017743 |
container_title |
Journal of Glaciology |
container_volume |
41 |
container_issue |
137 |
container_start_page |
39 |
op_container_end_page |
50 |
_version_ |
1792499402815832064 |