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Article: Two centuries of limited variability in subtropical North Atlantic thermocline ventilation
Title | Two centuries of limited variability in subtropical North Atlantic thermocline ventilation | ||||||
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Authors | |||||||
Issue Date | 2012 | ||||||
Citation | Nature Communications, 2012, v. 3 How to Cite? | ||||||
Abstract | Ventilation and mixing of oceanic gyres is important to ocean-atmosphere heat and gas transfer, and to mid-latitude nutrient supply. The rates of mode water formation are believed to impact climate and carbon exchange between the surface and mid-depth water over decadal periods. Here, a record of 14 C/ 12 C (1780-1940), which is a proxy for vertical ocean mixing, from an annually banded coral from Bermuda, shows limited inter-annual variability and a substantial Suess Effect (the decrease in 14 C/12 C since 1900). The Sargasso Sea mixing rates between the surface and thermocline varied minimally over the past two centuries, despite changes to mean-hemispheric climate, including the Little Ice Age and variability in the North Atlantic Oscillation. This result indicates that regional formation rates of sub-tropical mode water are stable over decades, and that anthropogenic carbon absorbed by the ocean does not return to the surface at a variable rate. © 2012 Macmillan Publishers Limited. All rights reserved. | ||||||
Persistent Identifier | http://hdl.handle.net/10722/151373 | ||||||
ISSN | 2021 Impact Factor: 17.694 2020 SCImago Journal Rankings: 5.559 | ||||||
ISI Accession Number ID |
Funding Information: We thank S. Griffin and D. Ostermann for analysis, and the Bermuda Institute of Ocean Science (BIOS) and Anne Cohen for coral collection. W. Curry provided the initial inspiration for this project. R. Toggweiler provided helpful comments. Funding provided by NSF's Chemical Oceanography Program OCE - 0526463 and 0961980 and the Stephen Hui Trust Fund. | ||||||
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Goodkin, NF | en_US |
dc.contributor.author | Druffel, ERM | en_US |
dc.contributor.author | Hughen, KA | en_US |
dc.contributor.author | Doney, SC | en_US |
dc.date.accessioned | 2012-06-26T06:21:18Z | - |
dc.date.available | 2012-06-26T06:21:18Z | - |
dc.date.issued | 2012 | en_US |
dc.identifier.citation | Nature Communications, 2012, v. 3 | en_US |
dc.identifier.issn | 2041-1723 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/151373 | - |
dc.description.abstract | Ventilation and mixing of oceanic gyres is important to ocean-atmosphere heat and gas transfer, and to mid-latitude nutrient supply. The rates of mode water formation are believed to impact climate and carbon exchange between the surface and mid-depth water over decadal periods. Here, a record of 14 C/ 12 C (1780-1940), which is a proxy for vertical ocean mixing, from an annually banded coral from Bermuda, shows limited inter-annual variability and a substantial Suess Effect (the decrease in 14 C/12 C since 1900). The Sargasso Sea mixing rates between the surface and thermocline varied minimally over the past two centuries, despite changes to mean-hemispheric climate, including the Little Ice Age and variability in the North Atlantic Oscillation. This result indicates that regional formation rates of sub-tropical mode water are stable over decades, and that anthropogenic carbon absorbed by the ocean does not return to the surface at a variable rate. © 2012 Macmillan Publishers Limited. All rights reserved. | en_US |
dc.language | eng | en_US |
dc.relation.ispartof | Nature Communications | en_US |
dc.title | Two centuries of limited variability in subtropical North Atlantic thermocline ventilation | en_US |
dc.type | Article | en_US |
dc.identifier.email | Goodkin, NF:goodkin@hkucc.hku.hk | en_US |
dc.identifier.authority | Goodkin, NF=rp00700 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1038/ncomms1811 | en_US |
dc.identifier.scopus | eid_2-s2.0-84860478007 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-84860478007&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 3 | en_US |
dc.identifier.isi | WOS:000304611400003 | - |
dc.identifier.scopusauthorid | Goodkin, NF=12446578100 | en_US |
dc.identifier.scopusauthorid | Druffel, ERM=7006170129 | en_US |
dc.identifier.scopusauthorid | Hughen, KA=6701562711 | en_US |
dc.identifier.scopusauthorid | Doney, SC=35498837200 | en_US |
dc.identifier.issnl | 2041-1723 | - |