An ensemble reconstruction of global monthly sea surface temperature and sea ice concentration 1000–1849
This paper describes a global monthly gridded Sea Surface Temperature (SST) and Sea Ice Concentration (SIC) dataset for the period 1000 – 1849, which can be used as boundary conditions for atmospheric model simulations. The reconstruction is based on existing coarse-resolution annual temperature ens...
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ftdatacite:10.48350/159905 2023-05-15T18:17:46+02:00 An ensemble reconstruction of global monthly sea surface temperature and sea ice concentration 1000–1849 Samakinwa, Eric Valler, Veronika Hand, Ralf Neukom, Raphael Gómez-Navarro, Juan José Kennedy, John Rayner, Nick A. Brönnimann, Stefan 2021 https://dx.doi.org/10.48350/159905 https://boris.unibe.ch/159905/ unknown Nature Publishing Group open access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 http://purl.org/coar/access_right/c_abf2 CC-BY 550 Earth sciences & geology 910 Geography & travel journal article article-journal Text ScholarlyArticle 2021 ftdatacite https://doi.org/10.48350/159905 2022-02-08T11:44:26Z This paper describes a global monthly gridded Sea Surface Temperature (SST) and Sea Ice Concentration (SIC) dataset for the period 1000 – 1849, which can be used as boundary conditions for atmospheric model simulations. The reconstruction is based on existing coarse-resolution annual temperature ensemble reconstructions, which are then augmented with intra-annual and sub-grid scale variability. The intra-annual component of HadISST.2.0 and oceanic indices estimated from the reconstructed annual mean are used to develop grid-based linear regressions in a monthly stratified approach. Similarly, we reconstruct SIC using analog resampling of HadISST.2.0 SIC (1941 – 2000), for both hemispheres. Analogs are pooled in four seasons, comprising of 3-months each. The best analogs are selected based on the correlation between each member of the reconstructed SST and its target. For the period 1780 to 1849, we assimilate historical observations of SST and night-time marine air temperature from the ICOADS dataset into our reconstruction using an offline Ensemble Kalman Filter approach. The resulting dataset is physically consistent with information from models, proxies, and observations. Text Sea ice DataCite Metadata Store (German National Library of Science and Technology) |
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550 Earth sciences & geology 910 Geography & travel |
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550 Earth sciences & geology 910 Geography & travel Samakinwa, Eric Valler, Veronika Hand, Ralf Neukom, Raphael Gómez-Navarro, Juan José Kennedy, John Rayner, Nick A. Brönnimann, Stefan An ensemble reconstruction of global monthly sea surface temperature and sea ice concentration 1000–1849 |
topic_facet |
550 Earth sciences & geology 910 Geography & travel |
description |
This paper describes a global monthly gridded Sea Surface Temperature (SST) and Sea Ice Concentration (SIC) dataset for the period 1000 – 1849, which can be used as boundary conditions for atmospheric model simulations. The reconstruction is based on existing coarse-resolution annual temperature ensemble reconstructions, which are then augmented with intra-annual and sub-grid scale variability. The intra-annual component of HadISST.2.0 and oceanic indices estimated from the reconstructed annual mean are used to develop grid-based linear regressions in a monthly stratified approach. Similarly, we reconstruct SIC using analog resampling of HadISST.2.0 SIC (1941 – 2000), for both hemispheres. Analogs are pooled in four seasons, comprising of 3-months each. The best analogs are selected based on the correlation between each member of the reconstructed SST and its target. For the period 1780 to 1849, we assimilate historical observations of SST and night-time marine air temperature from the ICOADS dataset into our reconstruction using an offline Ensemble Kalman Filter approach. The resulting dataset is physically consistent with information from models, proxies, and observations. |
format |
Text |
author |
Samakinwa, Eric Valler, Veronika Hand, Ralf Neukom, Raphael Gómez-Navarro, Juan José Kennedy, John Rayner, Nick A. Brönnimann, Stefan |
author_facet |
Samakinwa, Eric Valler, Veronika Hand, Ralf Neukom, Raphael Gómez-Navarro, Juan José Kennedy, John Rayner, Nick A. Brönnimann, Stefan |
author_sort |
Samakinwa, Eric |
title |
An ensemble reconstruction of global monthly sea surface temperature and sea ice concentration 1000–1849 |
title_short |
An ensemble reconstruction of global monthly sea surface temperature and sea ice concentration 1000–1849 |
title_full |
An ensemble reconstruction of global monthly sea surface temperature and sea ice concentration 1000–1849 |
title_fullStr |
An ensemble reconstruction of global monthly sea surface temperature and sea ice concentration 1000–1849 |
title_full_unstemmed |
An ensemble reconstruction of global monthly sea surface temperature and sea ice concentration 1000–1849 |
title_sort |
ensemble reconstruction of global monthly sea surface temperature and sea ice concentration 1000–1849 |
publisher |
Nature Publishing Group |
publishDate |
2021 |
url |
https://dx.doi.org/10.48350/159905 https://boris.unibe.ch/159905/ |
genre |
Sea ice |
genre_facet |
Sea ice |
op_rights |
open access Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 http://purl.org/coar/access_right/c_abf2 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.48350/159905 |
_version_ |
1766192938686087168 |