Twentieth century bipolar seesaw of the Arctic and Antarctic surface air temperatures
Twentieth century bipolar seesaw of the Arctic and Antarctic surface air temperatures
复制标题
DOI：
10.1029/2010gl042793
复制
发表时间：
2010-04-22
影响因子：
5.2
通讯作者：
Dubey, Manvendra K.
中科院分区：
文献类型：
--
作者：
Chylek, Petr;Folland, Chris K.;Dubey, Manvendra K.
了解北极和南极地区气候变化之间的阶段关系对于我们了解地球气候系统的动态至关重要。在本文中，我们表明，20世纪世纪的趋势消除北极和南极的温度变化在反相位跷跷板模式，当北极变暖，南极冷却，反之亦然。这是第一次在20世纪世纪北极和南极的温度记录中发现两极跷跷板模式。北极（南极）去趋势温度与大西洋多年代际振荡（AMO）指数高度相关（反相关），表明大西洋可能是北极和南极地区气候变率之间的联系。最近北极加速变暖的原因是多年气候变率的变暖阶段（由于大西洋环流的波动）对线性变暖趋势（由于温室气体浓度增加和其他可能的强迫）的积极加强。引文：Chylek，P.，C. K. Folland，G. Lesins和M. K. Dubey（2010），Twenty世纪北极和南极表面气温的两极跷跷板，Geophys.保留信函：37，L08703，doi：10.1029/2010GL042793。
Understanding the phase relationship between climate changes in the Arctic and Antarctic regions is essential for our understanding of the dynamics of the Earth's climate system. In this paper we show that the 20th century detrended Arctic and Antarctic temperatures vary in anti-phase seesaw pattern-when the Arctic warms the Antarctica cools and visa versa. This is the first time that a bi-polar seesaw pattern has been identified in the 20th century Arctic and Antarctic temperature records. The Arctic (Antarctic) detrended temperatures are highly correlated (anti-correlated) with the Atlantic Multi-decadal Oscillation (AMO) index suggesting the Atlantic Ocean as a possible link between the climate variability of the Arctic and Antarctic regions. Recent accelerated warming of the Arctic results from a positive reinforcement of the linear warming trend (due to an increasing concentration of greenhouse gases and other possible forcings) by the warming phase of the multidecadal climate variability (due to fluctuations of the Atlantic Ocean circulation). Citation: Chylek, P., C. K. Folland, G. Lesins, and M. K. Dubey (2010), Twentieth century bipolar seesaw of the Arctic and Antarctic surface air temperatures, Geophys. Res. Lett., 37, L08703, doi: 10.1029/2010GL042793.