Record of Little Ice Age sea surface temperatures at Bermuda using a growth-dependent calibration of coral Sr/Ca
Author Posting. © American Geophysical Union, 2005. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Paleoceanography 20 (2005): PA4016, doi:10.1029/2005PA001140. Strontium to calcium ratios (Sr/...
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Online Access: | https://hdl.handle.net/1912/3439 |
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/3439 2023-05-15T17:34:54+02:00 Record of Little Ice Age sea surface temperatures at Bermuda using a growth-dependent calibration of coral Sr/Ca Goodkin, Nathalie F. Hughen, Konrad A. Cohen, Anne L. Smith, Struan R. 2005-11-30 application/pdf https://hdl.handle.net/1912/3439 en_US eng American Geophysical Union https://doi.org/10.1029/2005PA001140 Paleoceanography 20 (2005): PA4016 https://hdl.handle.net/1912/3439 doi:10.1029/2005PA001140 Paleoceanography 20 (2005): PA4016 doi:10.1029/2005PA001140 SST Coral Sr/Ca Growth rate Article 2005 ftwhoas https://doi.org/10.1029/2005PA001140 2022-05-28T22:57:58Z Author Posting. © American Geophysical Union, 2005. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Paleoceanography 20 (2005): PA4016, doi:10.1029/2005PA001140. Strontium to calcium ratios (Sr/Ca) are reported for a massive brain coral Diploria labyrinthiformis collected from the south shore of Bermuda and are strongly correlated with both sea surface temperature (SST) and mean annual skeletal growth rate. High Sr/Ca ratios correspond with cold SSTs and slow skeletal growth rate and vice versa. We provide a quantitative calibration of Sr/Ca to extension rate and SST along the axis of maximum growth and derive a growth-dependent Sr/Ca–SST calibration equation to reconstruct western subtropical North Atlantic SSTs for the past 223 years. When the influence of growth rate is excluded from the calibration, Sr/Ca ratios yield SSTs that are too cold during cool anomalies and too warm during warm anomalies. Toward the end of the Little Ice Age (∼1850), SST changes derived using a calibration that is not growth-dependent are exaggerated by a factor of 2 relative to those from the growth-corrected model that yields SSTs ∼1.5°C cooler than today. Our results indicate that incorporation of growth rate effects into coral Sr/Ca calibrations may improve the accuracy of SSTs derived from living and fossil corals. A Stanley Watson Foundation Fellowship (N.F.G.), and grants from NSF (OCE-0402728) and WHOI (K.A.H., A.L.C., and M.S.M.) supported this work. Article in Journal/Newspaper North Atlantic Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Paleoceanography 20 4 n/a n/a |
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Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
English |
topic |
SST Coral Sr/Ca Growth rate |
spellingShingle |
SST Coral Sr/Ca Growth rate Goodkin, Nathalie F. Hughen, Konrad A. Cohen, Anne L. Smith, Struan R. Record of Little Ice Age sea surface temperatures at Bermuda using a growth-dependent calibration of coral Sr/Ca |
topic_facet |
SST Coral Sr/Ca Growth rate |
description |
Author Posting. © American Geophysical Union, 2005. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Paleoceanography 20 (2005): PA4016, doi:10.1029/2005PA001140. Strontium to calcium ratios (Sr/Ca) are reported for a massive brain coral Diploria labyrinthiformis collected from the south shore of Bermuda and are strongly correlated with both sea surface temperature (SST) and mean annual skeletal growth rate. High Sr/Ca ratios correspond with cold SSTs and slow skeletal growth rate and vice versa. We provide a quantitative calibration of Sr/Ca to extension rate and SST along the axis of maximum growth and derive a growth-dependent Sr/Ca–SST calibration equation to reconstruct western subtropical North Atlantic SSTs for the past 223 years. When the influence of growth rate is excluded from the calibration, Sr/Ca ratios yield SSTs that are too cold during cool anomalies and too warm during warm anomalies. Toward the end of the Little Ice Age (∼1850), SST changes derived using a calibration that is not growth-dependent are exaggerated by a factor of 2 relative to those from the growth-corrected model that yields SSTs ∼1.5°C cooler than today. Our results indicate that incorporation of growth rate effects into coral Sr/Ca calibrations may improve the accuracy of SSTs derived from living and fossil corals. A Stanley Watson Foundation Fellowship (N.F.G.), and grants from NSF (OCE-0402728) and WHOI (K.A.H., A.L.C., and M.S.M.) supported this work. |
format |
Article in Journal/Newspaper |
author |
Goodkin, Nathalie F. Hughen, Konrad A. Cohen, Anne L. Smith, Struan R. |
author_facet |
Goodkin, Nathalie F. Hughen, Konrad A. Cohen, Anne L. Smith, Struan R. |
author_sort |
Goodkin, Nathalie F. |
title |
Record of Little Ice Age sea surface temperatures at Bermuda using a growth-dependent calibration of coral Sr/Ca |
title_short |
Record of Little Ice Age sea surface temperatures at Bermuda using a growth-dependent calibration of coral Sr/Ca |
title_full |
Record of Little Ice Age sea surface temperatures at Bermuda using a growth-dependent calibration of coral Sr/Ca |
title_fullStr |
Record of Little Ice Age sea surface temperatures at Bermuda using a growth-dependent calibration of coral Sr/Ca |
title_full_unstemmed |
Record of Little Ice Age sea surface temperatures at Bermuda using a growth-dependent calibration of coral Sr/Ca |
title_sort |
record of little ice age sea surface temperatures at bermuda using a growth-dependent calibration of coral sr/ca |
publisher |
American Geophysical Union |
publishDate |
2005 |
url |
https://hdl.handle.net/1912/3439 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Paleoceanography 20 (2005): PA4016 doi:10.1029/2005PA001140 |
op_relation |
https://doi.org/10.1029/2005PA001140 Paleoceanography 20 (2005): PA4016 https://hdl.handle.net/1912/3439 doi:10.1029/2005PA001140 |
op_doi |
https://doi.org/10.1029/2005PA001140 |
container_title |
Paleoceanography |
container_volume |
20 |
container_issue |
4 |
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n/a |
op_container_end_page |
n/a |
_version_ |
1766133889287323648 |