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Significant warming of the Antarctic winter troposphere.

Authors
  • Turner, J
  • Lachlan-Cope, T A
  • Colwell, S
  • Marshall, G J
  • Connolley, W M
Type
Published Article
Journal
Science
Publisher
American Association for the Advancement of Science (AAAS)
Publication Date
Mar 31, 2006
Volume
311
Issue
5769
Pages
1914–1917
Identifiers
PMID: 16574865
Source
Medline
License
Unknown

Abstract

We report an undocumented major warming of the Antarctic winter troposphere that is larger than any previously identified regional tropospheric warming on Earth. This result has come to light through an analysis of recently digitized and rigorously quality controlled Antarctic radiosonde observations. The data show that regional midtropospheric temperatures have increased at a statistically significant rate of 0.5 degrees to 0.7 degrees Celsius per decade over the past 30 years. Analysis of the time series of radiosonde temperatures indicates that the data are temporally homogeneous. The available data do not allow us to unambiguously assign a cause to the tropospheric warming at this stage.

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