Multidecadal preconditioning of the Maud Rise polynya region
In this paper, we consider Maud Rise polynya formation in a long (250-year) high-resolution (ocean 0.1 ∘ , atmosphere 0.5 ∘ horizontal model resolution) of the Community Earth System Model. We find a dominant multidecadal timescale in the occurrence of these Maud Rise polynyas. Analysis of the resul...
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2020
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ftdoajarticles:oai:doaj.org/article:41549f34f1744a6a8d02b648adc34859 2023-05-15T18:24:44+02:00 Multidecadal preconditioning of the Maud Rise polynya region R. M. van Westen H. A. Dijkstra 2020-11-01T00:00:00Z https://doi.org/10.5194/os-16-1443-2020 https://doaj.org/article/41549f34f1744a6a8d02b648adc34859 EN eng Copernicus Publications https://os.copernicus.org/articles/16/1443/2020/os-16-1443-2020.pdf https://doaj.org/toc/1812-0784 https://doaj.org/toc/1812-0792 doi:10.5194/os-16-1443-2020 1812-0784 1812-0792 https://doaj.org/article/41549f34f1744a6a8d02b648adc34859 Ocean Science, Vol 16, Pp 1443-1457 (2020) Geography. Anthropology. Recreation G Environmental sciences GE1-350 article 2020 ftdoajarticles https://doi.org/10.5194/os-16-1443-2020 2022-12-31T10:36:01Z In this paper, we consider Maud Rise polynya formation in a long (250-year) high-resolution (ocean 0.1 ∘ , atmosphere 0.5 ∘ horizontal model resolution) of the Community Earth System Model. We find a dominant multidecadal timescale in the occurrence of these Maud Rise polynyas. Analysis of the results leads us to the interpretation that a preferred timescale can be induced by the variability of the Weddell Gyre, previously identified as the Southern Ocean Mode. The large-scale pattern of heat content variability associated with the Southern Ocean Mode modifies the stratification in the Maud Rise region and leads to a preferred timescale in convection through preconditioning of the subsurface density and consequently to polynya formation. Article in Journal/Newspaper Southern Ocean Directory of Open Access Journals: DOAJ Articles Maud Rise ENVELOPE(3.000,3.000,-66.000,-66.000) Southern Ocean Weddell Ocean Science 16 6 1443 1457 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geography. Anthropology. Recreation G Environmental sciences GE1-350 |
spellingShingle |
Geography. Anthropology. Recreation G Environmental sciences GE1-350 R. M. van Westen H. A. Dijkstra Multidecadal preconditioning of the Maud Rise polynya region |
topic_facet |
Geography. Anthropology. Recreation G Environmental sciences GE1-350 |
description |
In this paper, we consider Maud Rise polynya formation in a long (250-year) high-resolution (ocean 0.1 ∘ , atmosphere 0.5 ∘ horizontal model resolution) of the Community Earth System Model. We find a dominant multidecadal timescale in the occurrence of these Maud Rise polynyas. Analysis of the results leads us to the interpretation that a preferred timescale can be induced by the variability of the Weddell Gyre, previously identified as the Southern Ocean Mode. The large-scale pattern of heat content variability associated with the Southern Ocean Mode modifies the stratification in the Maud Rise region and leads to a preferred timescale in convection through preconditioning of the subsurface density and consequently to polynya formation. |
format |
Article in Journal/Newspaper |
author |
R. M. van Westen H. A. Dijkstra |
author_facet |
R. M. van Westen H. A. Dijkstra |
author_sort |
R. M. van Westen |
title |
Multidecadal preconditioning of the Maud Rise polynya region |
title_short |
Multidecadal preconditioning of the Maud Rise polynya region |
title_full |
Multidecadal preconditioning of the Maud Rise polynya region |
title_fullStr |
Multidecadal preconditioning of the Maud Rise polynya region |
title_full_unstemmed |
Multidecadal preconditioning of the Maud Rise polynya region |
title_sort |
multidecadal preconditioning of the maud rise polynya region |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/os-16-1443-2020 https://doaj.org/article/41549f34f1744a6a8d02b648adc34859 |
long_lat |
ENVELOPE(3.000,3.000,-66.000,-66.000) |
geographic |
Maud Rise Southern Ocean Weddell |
geographic_facet |
Maud Rise Southern Ocean Weddell |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Ocean Science, Vol 16, Pp 1443-1457 (2020) |
op_relation |
https://os.copernicus.org/articles/16/1443/2020/os-16-1443-2020.pdf https://doaj.org/toc/1812-0784 https://doaj.org/toc/1812-0792 doi:10.5194/os-16-1443-2020 1812-0784 1812-0792 https://doaj.org/article/41549f34f1744a6a8d02b648adc34859 |
op_doi |
https://doi.org/10.5194/os-16-1443-2020 |
container_title |
Ocean Science |
container_volume |
16 |
container_issue |
6 |
container_start_page |
1443 |
op_container_end_page |
1457 |
_version_ |
1766205590426615808 |