North Atlantic surface ocean warming and salinization in response to middle Eocene greenhouse warming
Quantitative reconstructions of hydrological change during ancient greenhouse warming events provide valuable insight into warmer-than-modern hydrological cycles but are limited by paleoclimate proxy uncertainties. We present sea surface temperature (SST) records and seawater oxygen isotope (δ 18 O...
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ftnioz:oai:imis.nioz.nl:360958 2023-05-15T17:22:19+02:00 North Atlantic surface ocean warming and salinization in response to middle Eocene greenhouse warming van der Ploeg, R. Cramwinckel, M.J. Kocken, I.J. Leutert, T.J. Bohaty, S.M. Fokkema, C.D. Hull, P.M. Meckler, A.N. Middelburg, J. Müller, I.A. Penman, D.E. Peterse, F Reichart, G.-J. Sexton, P.F. Vahlenkamp, M. De Vleeschouwer, D. Wilson, P.A. Ziegler, M. Sluijs, A. 2023 application/pdf https://www.vliz.be/imisdocs/publications/69/386569.pdf en eng info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1126/sciadv.abq0110 https://www.vliz.be/imisdocs/publications/69/386569.pdf info:eu-repo/semantics/openAccess %3Ci%3EScience+Advances+9%284%29%3C%2Fi%3E%3A+eabq0110.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1126%2Fsciadv.abq0110%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1126%2Fsciadv.abq0110%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2023 ftnioz https://doi.org/10.1126/sciadv.abq0110 2023-02-08T23:20:03Z Quantitative reconstructions of hydrological change during ancient greenhouse warming events provide valuable insight into warmer-than-modern hydrological cycles but are limited by paleoclimate proxy uncertainties. We present sea surface temperature (SST) records and seawater oxygen isotope (δ 18 O sw ) estimates for the Middle Eocene Climatic Optimum (MECO), using coupled carbonate clumped isotope (Δ 47 ) and oxygen isotope (δ 18 O c ) data of well-preserved planktonic foraminifera from the North Atlantic Newfoundland Drifts. These indicate a transient ~3°C warming across the MECO, with absolute temperatures generally in accordance with trace element (Mg/Ca)–based SSTs but lower than biomarker-based SSTs for the same interval. We find a transient ~0.5‰ shift toward higher δ 18 O sw , which implies increased salinity in the North Atlantic subtropical gyre and potentially a poleward expansion of its northern boundary in response to greenhouse warming. These observations provide constraints on dynamic ocean response to warming events, which are consistent with theory and model simulations predicting an enhanced hydrological cycle under global warming. Article in Journal/Newspaper Newfoundland North Atlantic Planktonic foraminifera NIOZ Repository (Royal Netherlands Institute for Sea Research) Science Advances 9 4 |
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NIOZ Repository (Royal Netherlands Institute for Sea Research) |
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English |
description |
Quantitative reconstructions of hydrological change during ancient greenhouse warming events provide valuable insight into warmer-than-modern hydrological cycles but are limited by paleoclimate proxy uncertainties. We present sea surface temperature (SST) records and seawater oxygen isotope (δ 18 O sw ) estimates for the Middle Eocene Climatic Optimum (MECO), using coupled carbonate clumped isotope (Δ 47 ) and oxygen isotope (δ 18 O c ) data of well-preserved planktonic foraminifera from the North Atlantic Newfoundland Drifts. These indicate a transient ~3°C warming across the MECO, with absolute temperatures generally in accordance with trace element (Mg/Ca)–based SSTs but lower than biomarker-based SSTs for the same interval. We find a transient ~0.5‰ shift toward higher δ 18 O sw , which implies increased salinity in the North Atlantic subtropical gyre and potentially a poleward expansion of its northern boundary in response to greenhouse warming. These observations provide constraints on dynamic ocean response to warming events, which are consistent with theory and model simulations predicting an enhanced hydrological cycle under global warming. |
format |
Article in Journal/Newspaper |
author |
van der Ploeg, R. Cramwinckel, M.J. Kocken, I.J. Leutert, T.J. Bohaty, S.M. Fokkema, C.D. Hull, P.M. Meckler, A.N. Middelburg, J. Müller, I.A. Penman, D.E. Peterse, F Reichart, G.-J. Sexton, P.F. Vahlenkamp, M. De Vleeschouwer, D. Wilson, P.A. Ziegler, M. Sluijs, A. |
spellingShingle |
van der Ploeg, R. Cramwinckel, M.J. Kocken, I.J. Leutert, T.J. Bohaty, S.M. Fokkema, C.D. Hull, P.M. Meckler, A.N. Middelburg, J. Müller, I.A. Penman, D.E. Peterse, F Reichart, G.-J. Sexton, P.F. Vahlenkamp, M. De Vleeschouwer, D. Wilson, P.A. Ziegler, M. Sluijs, A. North Atlantic surface ocean warming and salinization in response to middle Eocene greenhouse warming |
author_facet |
van der Ploeg, R. Cramwinckel, M.J. Kocken, I.J. Leutert, T.J. Bohaty, S.M. Fokkema, C.D. Hull, P.M. Meckler, A.N. Middelburg, J. Müller, I.A. Penman, D.E. Peterse, F Reichart, G.-J. Sexton, P.F. Vahlenkamp, M. De Vleeschouwer, D. Wilson, P.A. Ziegler, M. Sluijs, A. |
author_sort |
van der Ploeg, R. |
title |
North Atlantic surface ocean warming and salinization in response to middle Eocene greenhouse warming |
title_short |
North Atlantic surface ocean warming and salinization in response to middle Eocene greenhouse warming |
title_full |
North Atlantic surface ocean warming and salinization in response to middle Eocene greenhouse warming |
title_fullStr |
North Atlantic surface ocean warming and salinization in response to middle Eocene greenhouse warming |
title_full_unstemmed |
North Atlantic surface ocean warming and salinization in response to middle Eocene greenhouse warming |
title_sort |
north atlantic surface ocean warming and salinization in response to middle eocene greenhouse warming |
publishDate |
2023 |
url |
https://www.vliz.be/imisdocs/publications/69/386569.pdf |
genre |
Newfoundland North Atlantic Planktonic foraminifera |
genre_facet |
Newfoundland North Atlantic Planktonic foraminifera |
op_source |
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op_relation |
info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1126/sciadv.abq0110 https://www.vliz.be/imisdocs/publications/69/386569.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1126/sciadv.abq0110 |
container_title |
Science Advances |
container_volume |
9 |
container_issue |
4 |
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1766108898014527488 |