Decadal variability of winter temperatures in the Antarctic Peninsula region
Abstract Rapid climate warming has been observed in the region of the Antarctic Peninsula since the middle of the last century with the largest warming rate in the winter. Decadal variability of winter temperature on the regional scale was analysed using eight station datasets of the Antarctic Penin...
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crcambridgeupr:10.1017/s0954102011000423 2024-09-09T19:06:52+00:00 Decadal variability of winter temperatures in the Antarctic Peninsula region Kravchenko, V.O. Evtushevsky, O.M. Grytsai, A.V. Milinevsky, G.P. 2011 http://dx.doi.org/10.1017/s0954102011000423 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000423 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 23, issue 6, page 614-622 ISSN 0954-1020 1365-2079 journal-article 2011 crcambridgeupr https://doi.org/10.1017/s0954102011000423 2024-06-19T04:04:27Z Abstract Rapid climate warming has been observed in the region of the Antarctic Peninsula since the middle of the last century with the largest warming rate in the winter. Decadal variability of winter temperature on the regional scale was analysed using eight station datasets of the Antarctic Peninsula region. The Scientific Committee on Antarctic Research Reference Antarctic Data for Environmental Research from the period 1950–2009 were used. Fourier and wavelet transforms of the averaged temperature anomaly time series reveal a clear separation between the oscillations with three to eight year periods and a decadal oscillation with a period of around 16 years. On the Antarctic Peninsula region scale, 16 year periodicity in the winter temperature variability has not been described before. Both spectral components show similar spectral power and statistical significance (5–10%). This is evidence of their comparable importance for winter temperature changes in the Antarctic Peninsula region. The three to eight year periods are most probably related to the El Niño–Southern Oscillation and Antarctic Circumpolar Wave signals, but the 16 year oscillation has not been identified within the scope of this analysis. The possible effect of the decadal oscillation in the winter temperature trend estimate is discussed. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science Scientific Committee on Antarctic Research Cambridge University Press Antarctic Antarctic Peninsula The Antarctic Antarctic Science 23 6 614 622 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract Rapid climate warming has been observed in the region of the Antarctic Peninsula since the middle of the last century with the largest warming rate in the winter. Decadal variability of winter temperature on the regional scale was analysed using eight station datasets of the Antarctic Peninsula region. The Scientific Committee on Antarctic Research Reference Antarctic Data for Environmental Research from the period 1950–2009 were used. Fourier and wavelet transforms of the averaged temperature anomaly time series reveal a clear separation between the oscillations with three to eight year periods and a decadal oscillation with a period of around 16 years. On the Antarctic Peninsula region scale, 16 year periodicity in the winter temperature variability has not been described before. Both spectral components show similar spectral power and statistical significance (5–10%). This is evidence of their comparable importance for winter temperature changes in the Antarctic Peninsula region. The three to eight year periods are most probably related to the El Niño–Southern Oscillation and Antarctic Circumpolar Wave signals, but the 16 year oscillation has not been identified within the scope of this analysis. The possible effect of the decadal oscillation in the winter temperature trend estimate is discussed. |
format |
Article in Journal/Newspaper |
author |
Kravchenko, V.O. Evtushevsky, O.M. Grytsai, A.V. Milinevsky, G.P. |
spellingShingle |
Kravchenko, V.O. Evtushevsky, O.M. Grytsai, A.V. Milinevsky, G.P. Decadal variability of winter temperatures in the Antarctic Peninsula region |
author_facet |
Kravchenko, V.O. Evtushevsky, O.M. Grytsai, A.V. Milinevsky, G.P. |
author_sort |
Kravchenko, V.O. |
title |
Decadal variability of winter temperatures in the Antarctic Peninsula region |
title_short |
Decadal variability of winter temperatures in the Antarctic Peninsula region |
title_full |
Decadal variability of winter temperatures in the Antarctic Peninsula region |
title_fullStr |
Decadal variability of winter temperatures in the Antarctic Peninsula region |
title_full_unstemmed |
Decadal variability of winter temperatures in the Antarctic Peninsula region |
title_sort |
decadal variability of winter temperatures in the antarctic peninsula region |
publisher |
Cambridge University Press (CUP) |
publishDate |
2011 |
url |
http://dx.doi.org/10.1017/s0954102011000423 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000423 |
geographic |
Antarctic Antarctic Peninsula The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Scientific Committee on Antarctic Research |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Scientific Committee on Antarctic Research |
op_source |
Antarctic Science volume 23, issue 6, page 614-622 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102011000423 |
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Antarctic Science |
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23 |
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6 |
container_start_page |
614 |
op_container_end_page |
622 |
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1809820937655156736 |