Arctic air temperature change amplification and the Atlantic Multidecadal Oscillation

被引：222

作者：

Chylek, Petr ^{[1
]}

Folland, Chris K. ^{[2
]}

Lesins, Glen ^{[3
]}

Dubey, Manvendra K. ^{[1
]}

Wang, Muyin ^{[4
]}

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[2] Met Off Hadley Ctr Climate Change, Exeter EX1 3PB, Devon, England

[3] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 3J5, Canada

[4] Univ Washington, Joint Inst Study Atmosphere & Oceans, Seattle, WA 98195 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2009年 / 36卷

关键词：

SEA-ICE VARIABILITY; SURFACE-TEMPERATURE; CLIMATE RESPONSE; 20TH-CENTURY; CIRCULATION; RECORD; COVER;

D O I：

10.1029/2009GL038777

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Understanding Arctic temperature variability is essential for assessing possible future melting of the Greenland ice sheet, Arctic sea ice and Arctic permafrost. Temperature trend reversals in 1940 and 1970 separate two Arctic warming periods (1910-1940 and 1970-2008) by a significant 1940-1970 cooling period. Analyzing temperature records of the Arctic meteorological stations we find that (a) the Arctic amplification (ratio of the Arctic to global temperature trends) is not a constant but varies in time on a multi-decadal time scale, (b) the Arctic warming from 1910-1940 proceeded at a significantly faster rate than the current 1970-2008 warming, and (c) the Arctic temperature changes are highly correlated with the Atlantic Multi-decadal Oscillation (AMO) suggesting the Atlantic Ocean thermohaline circulation is linked to the Arctic temperature variability on a multi-decadal time scale. Citation: Chylek, P., C. K. Folland, G. Lesins, M. K. Dubey, and M. Wang (2009), Arctic air temperature change amplification and the Atlantic Multidecadal Oscillation, Geophys. Res. Lett., 36, L14801, doi: 10.1029/2009GL038777.

引用

页数：5

共 35 条

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