Temperature-driven global sea-level variability in the Common Era

We assess the relationship between temperature and global sea-level (GSL) variability over the Common Era through a statistical metaanalysis of proxy relative sea-level reconstructions and tide-gauge data. GSL rose at 0.1 ± 0.1 mm/y (2σ) over 0–700 CE. A GSL fall of 0.2 ± 0.2 mm/y over 1000–1400 CE...

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Main Authors: Kopp, Robert E., Kemp, Andrew C., Bittermann, Klaus, Horton, Benjamin P., Donnelly, Jeffrey P., Gehrels, W. Roland, Hay, Carling C., Mitrovica, Jerry X., Morrow, Eric D., Rahmstorf, Stefan
Other Authors: Asian School of the Environment
Format: Journal Article
Language:English
Published: 2019
Subjects:
Online Access:https://hdl.handle.net/10356/88758
http://hdl.handle.net/10220/50460
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author Kopp, Robert E.
Kemp, Andrew C.
Bittermann, Klaus
Horton, Benjamin P.
Donnelly, Jeffrey P.
Gehrels, W. Roland
Hay, Carling C.
Mitrovica, Jerry X.
Morrow, Eric D.
Rahmstorf, Stefan
author2 Asian School of the Environment
author_facet Asian School of the Environment
Kopp, Robert E.
Kemp, Andrew C.
Bittermann, Klaus
Horton, Benjamin P.
Donnelly, Jeffrey P.
Gehrels, W. Roland
Hay, Carling C.
Mitrovica, Jerry X.
Morrow, Eric D.
Rahmstorf, Stefan
author_sort Kopp, Robert E.
collection NTU
description We assess the relationship between temperature and global sea-level (GSL) variability over the Common Era through a statistical metaanalysis of proxy relative sea-level reconstructions and tide-gauge data. GSL rose at 0.1 ± 0.1 mm/y (2σ) over 0–700 CE. A GSL fall of 0.2 ± 0.2 mm/y over 1000–1400 CE is associated with ∼0.2 °C global mean cooling. A significant GSL acceleration began in the 19th century and yielded a 20th century rise that is extremely likely (probability P≥0.95) faster than during any of the previous 27 centuries. A semiempirical model calibrated against the GSL reconstruction indicates that, in the absence of anthropogenic climate change, it is extremely likely (P=0.95) that 20th century GSL would have risen by less than 51% of the observed 13.8±1.5 cm. The new semiempirical model largely reconciles previous differences between semiempirical 21st century GSL projections and the process model-based projections summarized in the Intergovernmental Panel on Climate Change’s Fifth Assessment Report.
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spelling ntu-10356/887582022-02-16T16:30:46Z Temperature-driven global sea-level variability in the Common Era Kopp, Robert E. Kemp, Andrew C. Bittermann, Klaus Horton, Benjamin P. Donnelly, Jeffrey P. Gehrels, W. Roland Hay, Carling C. Mitrovica, Jerry X. Morrow, Eric D. Rahmstorf, Stefan Asian School of the Environment Earth Observatory of Singapore Sea Level Science::Geology Common Era We assess the relationship between temperature and global sea-level (GSL) variability over the Common Era through a statistical metaanalysis of proxy relative sea-level reconstructions and tide-gauge data. GSL rose at 0.1 ± 0.1 mm/y (2σ) over 0–700 CE. A GSL fall of 0.2 ± 0.2 mm/y over 1000–1400 CE is associated with ∼0.2 °C global mean cooling. A significant GSL acceleration began in the 19th century and yielded a 20th century rise that is extremely likely (probability P≥0.95) faster than during any of the previous 27 centuries. A semiempirical model calibrated against the GSL reconstruction indicates that, in the absence of anthropogenic climate change, it is extremely likely (P=0.95) that 20th century GSL would have risen by less than 51% of the observed 13.8±1.5 cm. The new semiempirical model largely reconciles previous differences between semiempirical 21st century GSL projections and the process model-based projections summarized in the Intergovernmental Panel on Climate Change’s Fifth Assessment Report. Published version 2019-11-25T05:56:57Z 2019-12-06T17:10:22Z 2019-11-25T05:56:57Z 2019-12-06T17:10:22Z 2016 Journal Article Kopp, R. E., Kemp, A. C., Bittermann, K., Horton, B. P., Donnelly, J. P., Gehrels, W. R., … Rahmstorf, S. (2016). Temperature-driven global sea-level variability in the Common Era. Proceedings of the National Academy of Sciences, 113(11), E1434-E1441. doi:10.1073/pnas.1517056113 0027-8424 https://hdl.handle.net/10356/88758 http://hdl.handle.net/10220/50460 10.1073/pnas.1517056113 26903659 en Proceedings of the National Academy of Sciences © 2016 The Author(s) (published by National Academy of Sciences). This is an open-access article distributed under the terms of the Creative Commons Attribution License. 11 p. application/pdf
spellingShingle Sea Level
Science::Geology
Common Era
Kopp, Robert E.
Kemp, Andrew C.
Bittermann, Klaus
Horton, Benjamin P.
Donnelly, Jeffrey P.
Gehrels, W. Roland
Hay, Carling C.
Mitrovica, Jerry X.
Morrow, Eric D.
Rahmstorf, Stefan
Temperature-driven global sea-level variability in the Common Era
title Temperature-driven global sea-level variability in the Common Era
title_full Temperature-driven global sea-level variability in the Common Era
title_fullStr Temperature-driven global sea-level variability in the Common Era
title_full_unstemmed Temperature-driven global sea-level variability in the Common Era
title_short Temperature-driven global sea-level variability in the Common Era
title_sort temperature driven global sea level variability in the common era
topic Sea Level
Science::Geology
Common Era
url https://hdl.handle.net/10356/88758
http://hdl.handle.net/10220/50460
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