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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Language: | English |
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Norwegian Polar Institute
2011
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Online Access: | https://doi.org/10.3402/polar.v30i0.6039 https://doaj.org/article/f69d4e3cb2374a03964f70c666890817 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:f69d4e3cb2374a03964f70c666890817 2023-05-15T14:03:53+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 2011-02-01 https://doi.org/10.3402/polar.v30i0.6039 https://doaj.org/article/f69d4e3cb2374a03964f70c666890817 en eng Norwegian Polar Institute doi:10.3402/polar.v30i0.6039 0800-0395 1751-8369 https://doaj.org/article/f69d4e3cb2374a03964f70c666890817 undefined Polar Research, Vol 30, Iss 0, Pp 1-21 (2011) Antarctic climate surface air temperature intraseasonal variability Antarctic Oscillation geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2011 fttriple https://doi.org/10.3402/polar.v30i0.6039 2023-01-22T17:53:09Z 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 Unknown Antarctic Pacific Southern Ocean The Antarctic Polar Research 30 1 6039 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
Antarctic climate surface air temperature intraseasonal variability Antarctic Oscillation geo envir |
spellingShingle |
Antarctic climate surface air temperature intraseasonal variability Antarctic Oscillation geo envir 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 geo envir |
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 Pacific Southern Ocean The Antarctic |
geographic_facet |
Antarctic Pacific Southern Ocean The Antarctic |
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 |
doi:10.3402/polar.v30i0.6039 0800-0395 1751-8369 https://doaj.org/article/f69d4e3cb2374a03964f70c666890817 |
op_rights |
undefined |
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_ |
1766274739874037760 |