The intraseasonal variability of winter semester surface air temperature in Antarctica
This study investigates systematically the intraseasonal variability of surface air temperature over Antarctica by applying empirical orthogonal function (EOF) analysis to the National Centers for Environmental Prediction, US Department of Energy, Reanalysis 2 data set for the period of 1979 through...
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Norwegian Polar Institute
2011
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ftdoajarticles:oai:doaj.org/article:f69d4e3cb2374a03964f70c666890817 2023-05-15T14:03:10+02:00 The intraseasonal variability of winter semester surface air temperature in Antarctica Lejiang Yu Zhanhai Zhang Mingyu Zhou Shiyuan Zhong Bo Sun Hsiaoming Hsu Zhiqiu Gao Huiding Wu Junmei Ban 2011-02-01T00:00:00Z https://doi.org/10.3402/polar.v30i0.6039 https://doaj.org/article/f69d4e3cb2374a03964f70c666890817 EN eng Norwegian Polar Institute http://www.polarresearch.net/index.php/polar/article/view/6039/pdf_91 https://doaj.org/toc/0800-0395 https://doaj.org/toc/1751-8369 doi:10.3402/polar.v30i0.6039 0800-0395 1751-8369 https://doaj.org/article/f69d4e3cb2374a03964f70c666890817 Polar Research, Vol 30, Iss 0, Pp 1-21 (2011) Antarctic climate surface air temperature intraseasonal variability Antarctic Oscillation Environmental sciences GE1-350 Oceanography GC1-1581 article 2011 ftdoajarticles https://doi.org/10.3402/polar.v30i0.6039 2022-12-31T04:48:58Z This study investigates systematically the intraseasonal variability of surface air temperature over Antarctica by applying empirical orthogonal function (EOF) analysis to the National Centers for Environmental Prediction, US Department of Energy, Reanalysis 2 data set for the period of 1979 through 2007. The results reveal the existence of two major intraseasonal oscillations of surface temperature with periods of 26–30 days and 14 days during the Antarctic winter season in the region south of 60°S. The first EOF mode shows a nearly uniform spatial pattern in Antarctica and the Southern Ocean associated with the Antarctic Oscillation. The mode-1 intraseasonal variability of the surface temperature leads that of upper atmosphere by one day with the largest correlation at 300-hPa level geopotential heights. The intraseasonal variability of the mode-1 EOF is closely related to the variations of surface net longwave radiation the total cloud cover over Antarctica. The other major EOF modes reveal the existence of eastward propagating phases over the Southern Ocean and marginal region in Antarctica. The leading two propagating modes respond to Pacific–South American modes. Meridional winds induced by the wave train from the tropics have a direct influence on the surface air temperature over the Southern Ocean and the marginal region of the Antarctic continent. Article in Journal/Newspaper Antarc* Antarctic Antarctica Polar Research Southern Ocean Directory of Open Access Journals: DOAJ Articles Antarctic Southern Ocean The Antarctic Pacific Polar Research 30 1 6039 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctic climate surface air temperature intraseasonal variability Antarctic Oscillation Environmental sciences GE1-350 Oceanography GC1-1581 |
spellingShingle |
Antarctic climate surface air temperature intraseasonal variability Antarctic Oscillation Environmental sciences GE1-350 Oceanography GC1-1581 Lejiang Yu Zhanhai Zhang Mingyu Zhou Shiyuan Zhong Bo Sun Hsiaoming Hsu Zhiqiu Gao Huiding Wu Junmei Ban The intraseasonal variability of winter semester surface air temperature in Antarctica |
topic_facet |
Antarctic climate surface air temperature intraseasonal variability Antarctic Oscillation Environmental sciences GE1-350 Oceanography GC1-1581 |
description |
This study investigates systematically the intraseasonal variability of surface air temperature over Antarctica by applying empirical orthogonal function (EOF) analysis to the National Centers for Environmental Prediction, US Department of Energy, Reanalysis 2 data set for the period of 1979 through 2007. The results reveal the existence of two major intraseasonal oscillations of surface temperature with periods of 26–30 days and 14 days during the Antarctic winter season in the region south of 60°S. The first EOF mode shows a nearly uniform spatial pattern in Antarctica and the Southern Ocean associated with the Antarctic Oscillation. The mode-1 intraseasonal variability of the surface temperature leads that of upper atmosphere by one day with the largest correlation at 300-hPa level geopotential heights. The intraseasonal variability of the mode-1 EOF is closely related to the variations of surface net longwave radiation the total cloud cover over Antarctica. The other major EOF modes reveal the existence of eastward propagating phases over the Southern Ocean and marginal region in Antarctica. The leading two propagating modes respond to Pacific–South American modes. Meridional winds induced by the wave train from the tropics have a direct influence on the surface air temperature over the Southern Ocean and the marginal region of the Antarctic continent. |
format |
Article in Journal/Newspaper |
author |
Lejiang Yu Zhanhai Zhang Mingyu Zhou Shiyuan Zhong Bo Sun Hsiaoming Hsu Zhiqiu Gao Huiding Wu Junmei Ban |
author_facet |
Lejiang Yu Zhanhai Zhang Mingyu Zhou Shiyuan Zhong Bo Sun Hsiaoming Hsu Zhiqiu Gao Huiding Wu Junmei Ban |
author_sort |
Lejiang Yu |
title |
The intraseasonal variability of winter semester surface air temperature in Antarctica |
title_short |
The intraseasonal variability of winter semester surface air temperature in Antarctica |
title_full |
The intraseasonal variability of winter semester surface air temperature in Antarctica |
title_fullStr |
The intraseasonal variability of winter semester surface air temperature in Antarctica |
title_full_unstemmed |
The intraseasonal variability of winter semester surface air temperature in Antarctica |
title_sort |
intraseasonal variability of winter semester surface air temperature in antarctica |
publisher |
Norwegian Polar Institute |
publishDate |
2011 |
url |
https://doi.org/10.3402/polar.v30i0.6039 https://doaj.org/article/f69d4e3cb2374a03964f70c666890817 |
geographic |
Antarctic Southern Ocean The Antarctic Pacific |
geographic_facet |
Antarctic Southern Ocean The Antarctic Pacific |
genre |
Antarc* Antarctic Antarctica Polar Research Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Polar Research Southern Ocean |
op_source |
Polar Research, Vol 30, Iss 0, Pp 1-21 (2011) |
op_relation |
http://www.polarresearch.net/index.php/polar/article/view/6039/pdf_91 https://doaj.org/toc/0800-0395 https://doaj.org/toc/1751-8369 doi:10.3402/polar.v30i0.6039 0800-0395 1751-8369 https://doaj.org/article/f69d4e3cb2374a03964f70c666890817 |
op_doi |
https://doi.org/10.3402/polar.v30i0.6039 |
container_title |
Polar Research |
container_volume |
30 |
container_issue |
1 |
container_start_page |
6039 |
_version_ |
1766273726112858112 |