A multivariate analysis of Antarctic sea ice since 1979
Recent satellite observations have shown an increase in the total extent of Antarctic sea ice, during periods when the atmosphere and oceans tend to be warmer surrounding a significant part of the continent. Despite an increase in total sea ice, regional analyses depict negative trends in the Bellin...
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ftunivfurg:oai:repositorio.furg.br:1/3865 2023-11-12T04:00:54+01:00 A multivariate analysis of Antarctic sea ice since 1979 Magalhaes Neto, Newton de Silva, Heitor Evangelista da Tanizaki-Fonseca, Kenny Meirelles, Margareth Simoes Penello Garcia, Carlos Alberto Eiras 2012 application/pdf http://repositorio.furg.br/handle/1/3865 https://doi.org/10.1007/s00382-011-1162-6 eng eng MAGALHAES NETO, Newton de et al. A multivariate analysis of Antarctic sea ice since 1979. Springer, New York, n. 28, p.1115-1128, 2012. Disponível em: <http://adsabs.harvard.edu/abs/2012ClDy.38.1115D>. Acesso em: 26 jul. 2012 http://repositorio.furg.br/handle/1/3865 doi:10.1007/s00382-011-1162-6 restrict access Antarctica Sea ice Climate change Ocean–atmosphere interactions article 2012 ftunivfurg https://doi.org/10.1007/s00382-011-1162-6 2023-10-24T20:58:49Z Recent satellite observations have shown an increase in the total extent of Antarctic sea ice, during periods when the atmosphere and oceans tend to be warmer surrounding a significant part of the continent. Despite an increase in total sea ice, regional analyses depict negative trends in the Bellingshausen-Amundsen Sea and positive trends in the Ross Sea. Although several climate parameters are believed to drive the formation of Antarctic sea ice and the local atmosphere, a descriptive mechanism that could trigger such differences in trends are still unknown. In this study we employed a multivariate analysis in order to identify the response of the Antarctic sea ice with respect to commonly utilized climate forcings/parameters, as follows: (1) The global air surface temperature, (2) The global sea surface temperature, (3) The atmospheric CO2 concentra- ̃ tion, (4) The South Annular Mode, (5) The Nino 3, (6) The ̃ ̃ Nino 3 ? 4, 7) The Nino 4, (8) The Southern Oscillation Index, (9) The Multivariate ENSO Index, (10) the Total Solar Irradiance, (11) The maximum O3 depletion area, and (12) The minimum O3 concentration over Antarctica. Our results indicate that western Antarctic sea ice is simulta- neously impacted by several parameters; and that the min- imum, mean, and maximum sea ice extent may respond to a separate set of climatic/geochemical parameters. Article in Journal/Newspaper Amundsen Sea Antarc* Antarctic Antarctica Ross Sea Sea ice RI FURG (Repositório da Universidade Federal do Rio Grande) Amundsen Sea Antarctic Ross Sea The Antarctic Climate Dynamics 38 5-6 1115 1128 |
institution |
Open Polar |
collection |
RI FURG (Repositório da Universidade Federal do Rio Grande) |
op_collection_id |
ftunivfurg |
language |
English |
topic |
Antarctica Sea ice Climate change Ocean–atmosphere interactions |
spellingShingle |
Antarctica Sea ice Climate change Ocean–atmosphere interactions Magalhaes Neto, Newton de Silva, Heitor Evangelista da Tanizaki-Fonseca, Kenny Meirelles, Margareth Simoes Penello Garcia, Carlos Alberto Eiras A multivariate analysis of Antarctic sea ice since 1979 |
topic_facet |
Antarctica Sea ice Climate change Ocean–atmosphere interactions |
description |
Recent satellite observations have shown an increase in the total extent of Antarctic sea ice, during periods when the atmosphere and oceans tend to be warmer surrounding a significant part of the continent. Despite an increase in total sea ice, regional analyses depict negative trends in the Bellingshausen-Amundsen Sea and positive trends in the Ross Sea. Although several climate parameters are believed to drive the formation of Antarctic sea ice and the local atmosphere, a descriptive mechanism that could trigger such differences in trends are still unknown. In this study we employed a multivariate analysis in order to identify the response of the Antarctic sea ice with respect to commonly utilized climate forcings/parameters, as follows: (1) The global air surface temperature, (2) The global sea surface temperature, (3) The atmospheric CO2 concentra- ̃ tion, (4) The South Annular Mode, (5) The Nino 3, (6) The ̃ ̃ Nino 3 ? 4, 7) The Nino 4, (8) The Southern Oscillation Index, (9) The Multivariate ENSO Index, (10) the Total Solar Irradiance, (11) The maximum O3 depletion area, and (12) The minimum O3 concentration over Antarctica. Our results indicate that western Antarctic sea ice is simulta- neously impacted by several parameters; and that the min- imum, mean, and maximum sea ice extent may respond to a separate set of climatic/geochemical parameters. |
format |
Article in Journal/Newspaper |
author |
Magalhaes Neto, Newton de Silva, Heitor Evangelista da Tanizaki-Fonseca, Kenny Meirelles, Margareth Simoes Penello Garcia, Carlos Alberto Eiras |
author_facet |
Magalhaes Neto, Newton de Silva, Heitor Evangelista da Tanizaki-Fonseca, Kenny Meirelles, Margareth Simoes Penello Garcia, Carlos Alberto Eiras |
author_sort |
Magalhaes Neto, Newton de |
title |
A multivariate analysis of Antarctic sea ice since 1979 |
title_short |
A multivariate analysis of Antarctic sea ice since 1979 |
title_full |
A multivariate analysis of Antarctic sea ice since 1979 |
title_fullStr |
A multivariate analysis of Antarctic sea ice since 1979 |
title_full_unstemmed |
A multivariate analysis of Antarctic sea ice since 1979 |
title_sort |
multivariate analysis of antarctic sea ice since 1979 |
publishDate |
2012 |
url |
http://repositorio.furg.br/handle/1/3865 https://doi.org/10.1007/s00382-011-1162-6 |
geographic |
Amundsen Sea Antarctic Ross Sea The Antarctic |
geographic_facet |
Amundsen Sea Antarctic Ross Sea The Antarctic |
genre |
Amundsen Sea Antarc* Antarctic Antarctica Ross Sea Sea ice |
genre_facet |
Amundsen Sea Antarc* Antarctic Antarctica Ross Sea Sea ice |
op_relation |
MAGALHAES NETO, Newton de et al. A multivariate analysis of Antarctic sea ice since 1979. Springer, New York, n. 28, p.1115-1128, 2012. Disponível em: <http://adsabs.harvard.edu/abs/2012ClDy.38.1115D>. Acesso em: 26 jul. 2012 http://repositorio.furg.br/handle/1/3865 doi:10.1007/s00382-011-1162-6 |
op_rights |
restrict access |
op_doi |
https://doi.org/10.1007/s00382-011-1162-6 |
container_title |
Climate Dynamics |
container_volume |
38 |
container_issue |
5-6 |
container_start_page |
1115 |
op_container_end_page |
1128 |
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1782328961684996096 |