Persistent acceleration in global sea-level rise since the 1960s
Previous studies reconstructed twentieth-century global mean sea level (GMSL) from sparse tide-gauge records to understand whether the recent high rates obtained from satellite altimetry are part of a longer-term acceleration. However, these analyses used techniques that can only accurately capture...
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Online Access: | http://hdl.handle.net/10261/204400 https://doi.org/10.1038/s41558-019-0531-8 |
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ftcsic:oai:digital.csic.es:10261/204400 2024-02-11T10:08:50+01:00 Persistent acceleration in global sea-level rise since the 1960s Dangendorf, Sönke Hay, Carling Calafat, Francesc M. Marcos, Marta Piecuch, Christopher G. Berk, Kevin Jensen, Jürgen 2019-08-05 http://hdl.handle.net/10261/204400 https://doi.org/10.1038/s41558-019-0531-8 unknown Springer Nature http://doi.org/10.1038/s41558-019-0531-8 Sí doi:10.1038/s41558-019-0531-8 e-issn: 1758-6798 issn: 1758-678X Nature Climate Change 9: 705-710 (2019) http://hdl.handle.net/10261/204400 none Climate-change impacts Physical oceanography artículo http://purl.org/coar/resource_type/c_6501 2019 ftcsic https://doi.org/10.1038/s41558-019-0531-8 2024-01-16T10:50:20Z Previous studies reconstructed twentieth-century global mean sea level (GMSL) from sparse tide-gauge records to understand whether the recent high rates obtained from satellite altimetry are part of a longer-term acceleration. However, these analyses used techniques that can only accurately capture either the trend or the variability in GMSL, but not both. Here we present an improved hybrid sea-level reconstruction during 1900–2015 that combines previous techniques at time scales where they perform best. We find a persistent acceleration in GMSL since the 1960s and demonstrate that this is largely (~76%) associated with sea-level changes in the Indo-Pacific and South Atlantic. We show that the initiation of the acceleration in the 1960s is tightly linked to an intensification and a basin-scale equatorward shift of Southern Hemispheric westerlies, leading to increased ocean heat uptake, and hence greater rates of GMSL rise, through changes in the circulation of the Southern Ocean. Article in Journal/Newspaper Southern Ocean Digital.CSIC (Spanish National Research Council) Pacific Southern Ocean Nature Climate Change 9 9 705 710 |
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Digital.CSIC (Spanish National Research Council) |
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unknown |
topic |
Climate-change impacts Physical oceanography |
spellingShingle |
Climate-change impacts Physical oceanography Dangendorf, Sönke Hay, Carling Calafat, Francesc M. Marcos, Marta Piecuch, Christopher G. Berk, Kevin Jensen, Jürgen Persistent acceleration in global sea-level rise since the 1960s |
topic_facet |
Climate-change impacts Physical oceanography |
description |
Previous studies reconstructed twentieth-century global mean sea level (GMSL) from sparse tide-gauge records to understand whether the recent high rates obtained from satellite altimetry are part of a longer-term acceleration. However, these analyses used techniques that can only accurately capture either the trend or the variability in GMSL, but not both. Here we present an improved hybrid sea-level reconstruction during 1900–2015 that combines previous techniques at time scales where they perform best. We find a persistent acceleration in GMSL since the 1960s and demonstrate that this is largely (~76%) associated with sea-level changes in the Indo-Pacific and South Atlantic. We show that the initiation of the acceleration in the 1960s is tightly linked to an intensification and a basin-scale equatorward shift of Southern Hemispheric westerlies, leading to increased ocean heat uptake, and hence greater rates of GMSL rise, through changes in the circulation of the Southern Ocean. |
format |
Article in Journal/Newspaper |
author |
Dangendorf, Sönke Hay, Carling Calafat, Francesc M. Marcos, Marta Piecuch, Christopher G. Berk, Kevin Jensen, Jürgen |
author_facet |
Dangendorf, Sönke Hay, Carling Calafat, Francesc M. Marcos, Marta Piecuch, Christopher G. Berk, Kevin Jensen, Jürgen |
author_sort |
Dangendorf, Sönke |
title |
Persistent acceleration in global sea-level rise since the 1960s |
title_short |
Persistent acceleration in global sea-level rise since the 1960s |
title_full |
Persistent acceleration in global sea-level rise since the 1960s |
title_fullStr |
Persistent acceleration in global sea-level rise since the 1960s |
title_full_unstemmed |
Persistent acceleration in global sea-level rise since the 1960s |
title_sort |
persistent acceleration in global sea-level rise since the 1960s |
publisher |
Springer Nature |
publishDate |
2019 |
url |
http://hdl.handle.net/10261/204400 https://doi.org/10.1038/s41558-019-0531-8 |
geographic |
Pacific Southern Ocean |
geographic_facet |
Pacific Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
http://doi.org/10.1038/s41558-019-0531-8 Sí doi:10.1038/s41558-019-0531-8 e-issn: 1758-6798 issn: 1758-678X Nature Climate Change 9: 705-710 (2019) http://hdl.handle.net/10261/204400 |
op_rights |
none |
op_doi |
https://doi.org/10.1038/s41558-019-0531-8 |
container_title |
Nature Climate Change |
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9 |
container_issue |
9 |
container_start_page |
705 |
op_container_end_page |
710 |
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1790608462553546752 |