A consistent sea-level reconstruction and its budget on basin and global scales over 1958–2014
Different sea level reconstructions show a spread in sea level rise over the last six decades and it is not yet certain whether the sum of contributors explains the reconstructed rise. Possible causes for this spread are, among others, vertical land motion at tide-gauge locations and the sparse samp...
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ftnerc:oai:nora.nerc.ac.uk:519269 2023-05-15T18:21:12+02:00 A consistent sea-level reconstruction and its budget on basin and global scales over 1958–2014 Frederikse, Thomas Jevrejeva, Svetlana Riva, Riccardo E.M. Dangendorf, Sönke 2018-02 text http://nora.nerc.ac.uk/id/eprint/519269/ https://nora.nerc.ac.uk/id/eprint/519269/1/jcli-d-17-0502.1.pdf https://doi.org/10.1175/JCLI-D-17-0502.1 en eng https://nora.nerc.ac.uk/id/eprint/519269/1/jcli-d-17-0502.1.pdf Frederikse, Thomas; Jevrejeva, Svetlana orcid:0000-0001-9490-4665 Riva, Riccardo E.M.; Dangendorf, Sönke. 2018 A consistent sea-level reconstruction and its budget on basin and global scales over 1958–2014. Journal of Climate, 31 (3). 1267-1280. https://doi.org/10.1175/JCLI-D-17-0502.1 <https://doi.org/10.1175/JCLI-D-17-0502.1> Publication - Article PeerReviewed 2018 ftnerc https://doi.org/10.1175/JCLI-D-17-0502.1 2023-02-04T19:46:06Z Different sea level reconstructions show a spread in sea level rise over the last six decades and it is not yet certain whether the sum of contributors explains the reconstructed rise. Possible causes for this spread are, among others, vertical land motion at tide-gauge locations and the sparse sampling of the spatially variable ocean. To assess these open questions, reconstructed sea level and the role of the contributors are investigated on a local, basin, and global scale. High-latitude seas are excluded. Tide-gauge records are combined with observations of vertical land motion, independent estimates of ice-mass loss, terrestrial water storage, and barotropic atmospheric forcing in a self-consistent framework to reconstruct sea level changes on basin and global scales, which are compared to the estimated sum of contributing processes. For the first time, it is shown that for most basins the reconstructed sea level trend and acceleration can be explained by the sum of contributors, as well as a large part of the decadal variability. The sparsely sampled South Atlantic Ocean forms an exception. The global-mean sea level reconstruction shows a trend of 1.5 ± 0.2 mm yr−1 over 1958–2014 (1σ), compared to 1.3 ± 0.1 mm yr−1 for the sum of contributors. Over the same period, the reconstruction shows a positive acceleration of 0.07 ± 0.02 mm yr−2, which is also in agreement with the sum of contributors, which shows an acceleration of 0.07 ± 0.01 mm yr−2. Since 1993, both reconstructed sea level and the sum of contributors show good agreement with altimetry estimates. Article in Journal/Newspaper South Atlantic Ocean Natural Environment Research Council: NERC Open Research Archive Journal of Climate 31 3 1267 1280 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
language |
English |
description |
Different sea level reconstructions show a spread in sea level rise over the last six decades and it is not yet certain whether the sum of contributors explains the reconstructed rise. Possible causes for this spread are, among others, vertical land motion at tide-gauge locations and the sparse sampling of the spatially variable ocean. To assess these open questions, reconstructed sea level and the role of the contributors are investigated on a local, basin, and global scale. High-latitude seas are excluded. Tide-gauge records are combined with observations of vertical land motion, independent estimates of ice-mass loss, terrestrial water storage, and barotropic atmospheric forcing in a self-consistent framework to reconstruct sea level changes on basin and global scales, which are compared to the estimated sum of contributing processes. For the first time, it is shown that for most basins the reconstructed sea level trend and acceleration can be explained by the sum of contributors, as well as a large part of the decadal variability. The sparsely sampled South Atlantic Ocean forms an exception. The global-mean sea level reconstruction shows a trend of 1.5 ± 0.2 mm yr−1 over 1958–2014 (1σ), compared to 1.3 ± 0.1 mm yr−1 for the sum of contributors. Over the same period, the reconstruction shows a positive acceleration of 0.07 ± 0.02 mm yr−2, which is also in agreement with the sum of contributors, which shows an acceleration of 0.07 ± 0.01 mm yr−2. Since 1993, both reconstructed sea level and the sum of contributors show good agreement with altimetry estimates. |
format |
Article in Journal/Newspaper |
author |
Frederikse, Thomas Jevrejeva, Svetlana Riva, Riccardo E.M. Dangendorf, Sönke |
spellingShingle |
Frederikse, Thomas Jevrejeva, Svetlana Riva, Riccardo E.M. Dangendorf, Sönke A consistent sea-level reconstruction and its budget on basin and global scales over 1958–2014 |
author_facet |
Frederikse, Thomas Jevrejeva, Svetlana Riva, Riccardo E.M. Dangendorf, Sönke |
author_sort |
Frederikse, Thomas |
title |
A consistent sea-level reconstruction and its budget on basin and global scales over 1958–2014 |
title_short |
A consistent sea-level reconstruction and its budget on basin and global scales over 1958–2014 |
title_full |
A consistent sea-level reconstruction and its budget on basin and global scales over 1958–2014 |
title_fullStr |
A consistent sea-level reconstruction and its budget on basin and global scales over 1958–2014 |
title_full_unstemmed |
A consistent sea-level reconstruction and its budget on basin and global scales over 1958–2014 |
title_sort |
consistent sea-level reconstruction and its budget on basin and global scales over 1958–2014 |
publishDate |
2018 |
url |
http://nora.nerc.ac.uk/id/eprint/519269/ https://nora.nerc.ac.uk/id/eprint/519269/1/jcli-d-17-0502.1.pdf https://doi.org/10.1175/JCLI-D-17-0502.1 |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
https://nora.nerc.ac.uk/id/eprint/519269/1/jcli-d-17-0502.1.pdf Frederikse, Thomas; Jevrejeva, Svetlana orcid:0000-0001-9490-4665 Riva, Riccardo E.M.; Dangendorf, Sönke. 2018 A consistent sea-level reconstruction and its budget on basin and global scales over 1958–2014. Journal of Climate, 31 (3). 1267-1280. https://doi.org/10.1175/JCLI-D-17-0502.1 <https://doi.org/10.1175/JCLI-D-17-0502.1> |
op_doi |
https://doi.org/10.1175/JCLI-D-17-0502.1 |
container_title |
Journal of Climate |
container_volume |
31 |
container_issue |
3 |
container_start_page |
1267 |
op_container_end_page |
1280 |
_version_ |
1766200352645840896 |