Cool tropical temperatures shift the global δ[superscript 18]O-T relationship: An explanation for the ice core δ[superscript 18]O- borehole thermometry conflict?

The discrepancy between central Greenland borehole temperatures and the isotopic composition of Last Glacial Maximum ice can be explained by a shift in the δ[superscript 18]O-T relationship for the hydrological cycle linked to cooler tropical temperatures. This concept is illustrated using a simple...

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Published in:Geophysical Research Letters
Main Author: Boyle, Edward A
Other Authors: Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Format: Article in Journal/Newspaper
Language:English
Published: American Geophysical Union (AGU) 1996
Subjects:
Greenland
ice core
Online Access:http://hdl.handle.net/1721.1/106299
id ftmit:oai:dspace.mit.edu:1721.1/106299
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spelling ftmit:oai:dspace.mit.edu:1721.1/106299 2023-06-11T04:12:14+02:00 Cool tropical temperatures shift the global δ[superscript 18]O-T relationship: An explanation for the ice core δ[superscript 18]O- borehole thermometry conflict? Cool tropical temperatures shift the global δ18O-T relationship: An explanation for the ice core δ18O- borehole thermometry conflict? Boyle, Edward A Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Boyle, Edward A 1996-11 application/pdf http://hdl.handle.net/1721.1/106299 en_US eng American Geophysical Union (AGU) http://dx.doi.org/10.1029/97GL00081 Geophysical Research Letters 0094-8276 http://hdl.handle.net/1721.1/106299 Boyle, Edward A. “Cool Tropical Temperatures Shift the Global δ[superscript 18] O-T Relationship: An Explanation for the Ice Core δ[superscript 18]O - Borehole Thermometry Conflict?” Geophysical Research Letters 24.3 (1997): 273–276. orcid:0000-0002-6394-1866 Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. Other univ. web domain Article http://purl.org/eprint/type/JournalArticle 1996 ftmit https://doi.org/10.1029/97GL00081 2023-05-29T08:47:19Z The discrepancy between central Greenland borehole temperatures and the isotopic composition of Last Glacial Maximum ice can be explained by a shift in the δ[superscript 18]O-T relationship for the hydrological cycle linked to cooler tropical temperatures. This concept is illustrated using a simple Rayleigh distillation model. An estimate for α=Δδ[superscript 18] O/ΔT (LGM-Holocene) of −0.37 ‰/°C is determined with a simple graphical technique. National Science Foundation (U.S.) (Grant OCE9402198) United States. National Oceanic and Atmospheric Administration (Grant NA46GP0282) Article in Journal/Newspaper Greenland ice core DSpace@MIT (Massachusetts Institute of Technology) Greenland Geophysical Research Letters 24 3 273 276
institution Open Polar
collection DSpace@MIT (Massachusetts Institute of Technology)
op_collection_id ftmit
language English
description The discrepancy between central Greenland borehole temperatures and the isotopic composition of Last Glacial Maximum ice can be explained by a shift in the δ[superscript 18]O-T relationship for the hydrological cycle linked to cooler tropical temperatures. This concept is illustrated using a simple Rayleigh distillation model. An estimate for α=Δδ[superscript 18] O/ΔT (LGM-Holocene) of −0.37 ‰/°C is determined with a simple graphical technique. National Science Foundation (U.S.) (Grant OCE9402198) United States. National Oceanic and Atmospheric Administration (Grant NA46GP0282)
author2 Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Boyle, Edward A
format Article in Journal/Newspaper
author Boyle, Edward A
spellingShingle Boyle, Edward A
Cool tropical temperatures shift the global δ[superscript 18]O-T relationship: An explanation for the ice core δ[superscript 18]O- borehole thermometry conflict?
author_facet Boyle, Edward A
author_sort Boyle, Edward A
title Cool tropical temperatures shift the global δ[superscript 18]O-T relationship: An explanation for the ice core δ[superscript 18]O- borehole thermometry conflict?
title_short Cool tropical temperatures shift the global δ[superscript 18]O-T relationship: An explanation for the ice core δ[superscript 18]O- borehole thermometry conflict?
title_full Cool tropical temperatures shift the global δ[superscript 18]O-T relationship: An explanation for the ice core δ[superscript 18]O- borehole thermometry conflict?
title_fullStr Cool tropical temperatures shift the global δ[superscript 18]O-T relationship: An explanation for the ice core δ[superscript 18]O- borehole thermometry conflict?
title_full_unstemmed Cool tropical temperatures shift the global δ[superscript 18]O-T relationship: An explanation for the ice core δ[superscript 18]O- borehole thermometry conflict?
title_sort cool tropical temperatures shift the global δ[superscript 18]o-t relationship: an explanation for the ice core δ[superscript 18]o- borehole thermometry conflict?
publisher American Geophysical Union (AGU)
publishDate 1996
url http://hdl.handle.net/1721.1/106299
geographic Greenland
geographic_facet Greenland
genre Greenland
ice core
genre_facet Greenland
ice core
op_source Other univ. web domain
op_relation http://dx.doi.org/10.1029/97GL00081
Geophysical Research Letters
0094-8276
http://hdl.handle.net/1721.1/106299
Boyle, Edward A. “Cool Tropical Temperatures Shift the Global δ[superscript 18] O-T Relationship: An Explanation for the Ice Core δ[superscript 18]O - Borehole Thermometry Conflict?” Geophysical Research Letters 24.3 (1997): 273–276.
orcid:0000-0002-6394-1866
op_rights Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
op_doi https://doi.org/10.1029/97GL00081
container_title Geophysical Research Letters
container_volume 24
container_issue 3
container_start_page 273
op_container_end_page 276
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