Holocene evolution of the Southern Hemisphere westerly winds in transient simulations with global climate models
The Southern Hemisphere Westerly Winds (SWW) have been suggested to exert a critical influence on global climate through wind-driven upwelling of deep water in the Southern Ocean and the potentially resulting atmospheric CO 2 variations. The investigation of the temporal and spatial evolution of the...
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ftpubman:oai:pure.mpg.de:item_1139652 2023-08-27T04:12:11+02:00 Holocene evolution of the Southern Hemisphere westerly winds in transient simulations with global climate models Varma, V. Prange, M. Merkel, U. Kleinen, T. Lohmann, G. Pfeiffer, M. Renssen, H. Wagner, A. Wagner, S. Schulz, M. 2012 application/pdf http://hdl.handle.net/11858/00-001M-0000-0012-256B-4 http://hdl.handle.net/11858/00-001M-0000-002C-3595-2 http://hdl.handle.net/11858/00-001M-0000-002C-3596-F eng eng info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-8-391-2012 http://hdl.handle.net/11858/00-001M-0000-0012-256B-4 http://hdl.handle.net/11858/00-001M-0000-002C-3595-2 http://hdl.handle.net/11858/00-001M-0000-002C-3596-F info:eu-repo/semantics/openAccess Climate of the Past info:eu-repo/semantics/article 2012 ftpubman https://doi.org/10.5194/cp-8-391-2012 2023-08-02T01:14:36Z The Southern Hemisphere Westerly Winds (SWW) have been suggested to exert a critical influence on global climate through wind-driven upwelling of deep water in the Southern Ocean and the potentially resulting atmospheric CO 2 variations. The investigation of the temporal and spatial evolution of the SWW along with forcings and feedbacks remains a significant challenge in climate research. In this study, the evolution of the SWW under orbital forcing from the mid-Holocene (7 kyr BP) to pre-industrial modern times (250 yr BP) is examined with transient experiments using the comprehensive coupled global climate model CCSM3. In addition, a model inter-comparison is carried out using orbitally forced Holocene transient simulations from four other coupled global climate models. Analyses and comparison of the model results suggest that the annual and seasonal mean SWW were subject to an overall strengthening and poleward shifting trend during the course of the mid-to-late Holocene under the influence of orbital forcing, except for the austral spring season, where the SWW exhibited an opposite trend of shifting towards the equator. © 2011 Author(s). Article in Journal/Newspaper Southern Ocean Max Planck Society: MPG.PuRe Austral Southern Ocean Climate of the Past 8 2 391 402 |
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Open Polar |
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Max Planck Society: MPG.PuRe |
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ftpubman |
language |
English |
description |
The Southern Hemisphere Westerly Winds (SWW) have been suggested to exert a critical influence on global climate through wind-driven upwelling of deep water in the Southern Ocean and the potentially resulting atmospheric CO 2 variations. The investigation of the temporal and spatial evolution of the SWW along with forcings and feedbacks remains a significant challenge in climate research. In this study, the evolution of the SWW under orbital forcing from the mid-Holocene (7 kyr BP) to pre-industrial modern times (250 yr BP) is examined with transient experiments using the comprehensive coupled global climate model CCSM3. In addition, a model inter-comparison is carried out using orbitally forced Holocene transient simulations from four other coupled global climate models. Analyses and comparison of the model results suggest that the annual and seasonal mean SWW were subject to an overall strengthening and poleward shifting trend during the course of the mid-to-late Holocene under the influence of orbital forcing, except for the austral spring season, where the SWW exhibited an opposite trend of shifting towards the equator. © 2011 Author(s). |
format |
Article in Journal/Newspaper |
author |
Varma, V. Prange, M. Merkel, U. Kleinen, T. Lohmann, G. Pfeiffer, M. Renssen, H. Wagner, A. Wagner, S. Schulz, M. |
spellingShingle |
Varma, V. Prange, M. Merkel, U. Kleinen, T. Lohmann, G. Pfeiffer, M. Renssen, H. Wagner, A. Wagner, S. Schulz, M. Holocene evolution of the Southern Hemisphere westerly winds in transient simulations with global climate models |
author_facet |
Varma, V. Prange, M. Merkel, U. Kleinen, T. Lohmann, G. Pfeiffer, M. Renssen, H. Wagner, A. Wagner, S. Schulz, M. |
author_sort |
Varma, V. |
title |
Holocene evolution of the Southern Hemisphere westerly winds in transient simulations with global climate models |
title_short |
Holocene evolution of the Southern Hemisphere westerly winds in transient simulations with global climate models |
title_full |
Holocene evolution of the Southern Hemisphere westerly winds in transient simulations with global climate models |
title_fullStr |
Holocene evolution of the Southern Hemisphere westerly winds in transient simulations with global climate models |
title_full_unstemmed |
Holocene evolution of the Southern Hemisphere westerly winds in transient simulations with global climate models |
title_sort |
holocene evolution of the southern hemisphere westerly winds in transient simulations with global climate models |
publishDate |
2012 |
url |
http://hdl.handle.net/11858/00-001M-0000-0012-256B-4 http://hdl.handle.net/11858/00-001M-0000-002C-3595-2 http://hdl.handle.net/11858/00-001M-0000-002C-3596-F |
geographic |
Austral Southern Ocean |
geographic_facet |
Austral Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Climate of the Past |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-8-391-2012 http://hdl.handle.net/11858/00-001M-0000-0012-256B-4 http://hdl.handle.net/11858/00-001M-0000-002C-3595-2 http://hdl.handle.net/11858/00-001M-0000-002C-3596-F |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/cp-8-391-2012 |
container_title |
Climate of the Past |
container_volume |
8 |
container_issue |
2 |
container_start_page |
391 |
op_container_end_page |
402 |
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1775356065394720768 |