Summertime sea-ice prediction in the Weddell Sea improved by sea-ice thickness initialization

Abstract Skillful sea-ice prediction in the Antarctic Ocean remains a big challenge due to paucity of sea-ice observations and insufficient representation of sea-ice processes in climate models. Using a coupled general circulation model, this study demonstrates skillful prediction of the summertime...

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Autores principales:	Yushi Morioka, Doroteaciro Iovino, Andrea Cipollone, Simona Masina, Swadhin K. Behera
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0722b21569a24a20b7f46f604aacbebb
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spelling	oai:doaj.org-article:0722b21569a24a20b7f46f604aacbebb2021-12-02T17:52:23ZSummertime sea-ice prediction in the Weddell Sea improved by sea-ice thickness initialization10.1038/s41598-021-91042-42045-2322https://doaj.org/article/0722b21569a24a20b7f46f604aacbebb2021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91042-4https://doaj.org/toc/2045-2322Abstract Skillful sea-ice prediction in the Antarctic Ocean remains a big challenge due to paucity of sea-ice observations and insufficient representation of sea-ice processes in climate models. Using a coupled general circulation model, this study demonstrates skillful prediction of the summertime sea-ice concentration (SIC) in the Weddell Sea with wintertime SIC and sea-ice thickness (SIT) initializations. During low sea-ice years of the Weddell Sea, negative SIT anomalies initialized in June retain the memory throughout austral winter owing to horizontal advection of the SIT anomalies. The SIT anomalies continue to develop in austral spring owing to more incoming solar radiation and the associated warming of mixed layer, contributing to further sea-ice decrease during late austral summer-early autumn. Concomitantly, the model reasonably reproduces atmospheric circulation anomalies during austral spring in the Amundsen-Bellingshausen Seas besides the Weddell Sea. These results provide evidence that the wintertime SIT initialization benefits skillful summertime sea-ice prediction in the Antarctic Seas.Yushi MoriokaDoroteaciro IovinoAndrea CipolloneSimona MasinaSwadhin K. BeheraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yushi Morioka Doroteaciro Iovino Andrea Cipollone Simona Masina Swadhin K. Behera Summertime sea-ice prediction in the Weddell Sea improved by sea-ice thickness initialization
description	Abstract Skillful sea-ice prediction in the Antarctic Ocean remains a big challenge due to paucity of sea-ice observations and insufficient representation of sea-ice processes in climate models. Using a coupled general circulation model, this study demonstrates skillful prediction of the summertime sea-ice concentration (SIC) in the Weddell Sea with wintertime SIC and sea-ice thickness (SIT) initializations. During low sea-ice years of the Weddell Sea, negative SIT anomalies initialized in June retain the memory throughout austral winter owing to horizontal advection of the SIT anomalies. The SIT anomalies continue to develop in austral spring owing to more incoming solar radiation and the associated warming of mixed layer, contributing to further sea-ice decrease during late austral summer-early autumn. Concomitantly, the model reasonably reproduces atmospheric circulation anomalies during austral spring in the Amundsen-Bellingshausen Seas besides the Weddell Sea. These results provide evidence that the wintertime SIT initialization benefits skillful summertime sea-ice prediction in the Antarctic Seas.
format	article
author	Yushi Morioka Doroteaciro Iovino Andrea Cipollone Simona Masina Swadhin K. Behera
author_facet	Yushi Morioka Doroteaciro Iovino Andrea Cipollone Simona Masina Swadhin K. Behera
author_sort	Yushi Morioka
title	Summertime sea-ice prediction in the Weddell Sea improved by sea-ice thickness initialization
title_short	Summertime sea-ice prediction in the Weddell Sea improved by sea-ice thickness initialization
title_full	Summertime sea-ice prediction in the Weddell Sea improved by sea-ice thickness initialization
title_fullStr	Summertime sea-ice prediction in the Weddell Sea improved by sea-ice thickness initialization
title_full_unstemmed	Summertime sea-ice prediction in the Weddell Sea improved by sea-ice thickness initialization
title_sort	summertime sea-ice prediction in the weddell sea improved by sea-ice thickness initialization
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0722b21569a24a20b7f46f604aacbebb
work_keys_str_mv	AT yushimorioka summertimeseaicepredictionintheweddellseaimprovedbyseaicethicknessinitialization AT doroteaciroiovino summertimeseaicepredictionintheweddellseaimprovedbyseaicethicknessinitialization AT andreacipollone summertimeseaicepredictionintheweddellseaimprovedbyseaicethicknessinitialization AT simonamasina summertimeseaicepredictionintheweddellseaimprovedbyseaicethicknessinitialization AT swadhinkbehera summertimeseaicepredictionintheweddellseaimprovedbyseaicethicknessinitialization
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Summertime sea-ice prediction in the Weddell Sea improved by sea-ice thickness initialization

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