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 the wind-driven upwelling of deep water in the Southern Ocean and the potentially resulting atmospheric CO2 variations. The investigation of the temporal and spatial evolution of...
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fttriple:oai:gotriple.eu:oai:doaj.org/article:70b3294250d14bff919f0ce87cb349aa 2023-05-15T18:25:27+02:00 Holocene evolution of the Southern Hemisphere westerly winds in transient simulations with global climate models V. Varma M. Prange U. Merkel T. Kleinen G. Lohmann M. Pfeiffer H. Renssen A. Wagner S. Wagner M. Schulz 2012-03-01 https://doi.org/10.5194/cp-8-391-2012 http://www.clim-past.net/8/391/2012/cp-8-391-2012.pdf https://doaj.org/article/70b3294250d14bff919f0ce87cb349aa en eng Copernicus Publications doi:10.5194/cp-8-391-2012 1814-9324 1814-9332 http://www.clim-past.net/8/391/2012/cp-8-391-2012.pdf https://doaj.org/article/70b3294250d14bff919f0ce87cb349aa undefined Climate of the Past, Vol 8, Iss 2, Pp 391-402 (2012) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2012 fttriple https://doi.org/10.5194/cp-8-391-2012 2023-01-22T19:15:31Z The Southern Hemisphere Westerly Winds (SWW) have been suggested to exert a critical influence on global climate through the wind-driven upwelling of deep water in the Southern Ocean and the potentially resulting atmospheric CO2 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. Article in Journal/Newspaper Southern Ocean Unknown Austral Southern Ocean Climate of the Past 8 2 391 402 |
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topic |
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geo envir V. Varma M. Prange U. Merkel T. Kleinen G. Lohmann M. Pfeiffer H. Renssen A. Wagner S. Wagner M. Schulz Holocene evolution of the Southern Hemisphere westerly winds in transient simulations with global climate models |
topic_facet |
geo envir |
description |
The Southern Hemisphere Westerly Winds (SWW) have been suggested to exert a critical influence on global climate through the wind-driven upwelling of deep water in the Southern Ocean and the potentially resulting atmospheric CO2 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. |
format |
Article in Journal/Newspaper |
author |
V. Varma M. Prange U. Merkel T. Kleinen G. Lohmann M. Pfeiffer H. Renssen A. Wagner S. Wagner M. Schulz |
author_facet |
V. Varma M. Prange U. Merkel T. Kleinen G. Lohmann M. Pfeiffer H. Renssen A. Wagner S. Wagner M. Schulz |
author_sort |
V. Varma |
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 |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/cp-8-391-2012 http://www.clim-past.net/8/391/2012/cp-8-391-2012.pdf https://doaj.org/article/70b3294250d14bff919f0ce87cb349aa |
geographic |
Austral Southern Ocean |
geographic_facet |
Austral Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Climate of the Past, Vol 8, Iss 2, Pp 391-402 (2012) |
op_relation |
doi:10.5194/cp-8-391-2012 1814-9324 1814-9332 http://www.clim-past.net/8/391/2012/cp-8-391-2012.pdf https://doaj.org/article/70b3294250d14bff919f0ce87cb349aa |
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undefined |
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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1766206928882499584 |