Winter 2009-2010: A case study of an extreme Arctic Oscillation event
Winter 2009-2010: A case study of an extreme Arctic Oscillation event
复制标题
DOI：
10.1029/2010gl044256
复制
发表时间：
2010-09-11
影响因子：
5.2
通讯作者：
Jones, Justin
中科院分区：
文献类型：
--
作者：
Cohen, Judah;Foster, James;Jones, Justin
2009-2010年冬季，北半球工业化国家大多数主要人口中心的极端寒冷和降雪成为头条新闻。厄尔尼诺/南方涛动（ENSO）和北极涛动（AO）是北半球的主要遥相关型，振幅为中至强，是2009-2010年冬季的潜在关键因素。主要的北半球冬季环流模式可以证明起源于欧亚陆面和对流层低层大气条件在秋季强迫的双向平流层-对流层相互作用。这个周期在相对较短的时间内连续发生了两次，导致观测到的AO值创历史新低。利用一个熟练的冬季温度预报，表明与ENSO相比，AO解释了北半球温带陆地上观测到的温度模式的更大变化。引用本文：Cohen， J.， J. Foster， M. Barlow， K. Saito和J. Jones (2010)， Winter 2009-2010：一个极端北极涛动事件的案例研究，地球物理学。卷。， 37, L17707, doi:10.1029/2010GL044256。
Winter 2009-2010 made headlines for extreme cold and snow in most of the major population centers of the industrialized countries of the Northern Hemisphere (NH). The major teleconnection patterns of the Northern Hemisphere, El Nino/Southern Oscillation (ENSO) and the Arctic Oscillation (AO) were of moderate to strong amplitude, making both potentially key players during the winter of 2009-2010. The dominant NH winter circulation pattern can be shown to have originated with a two-way stratosphere-troposphere interaction forced by Eurasian land surface and lower tropospheric atmospheric conditions during autumn. This cycle occurred twice in relatively quick succession contributing to the record low values of the AO observed. Using a skillful winter temperature forecast, it is shown that the AO explained a greater variance of the observed temperature pattern across the extratropical landmasses of the NH than did ENSO. Citation: Cohen, J., J. Foster, M. Barlow, K. Saito, and J. Jones (2010), Winter 2009-2010: A case study of an extreme Arctic Oscillation event, Geophys. Res. Lett., 37, L17707, doi:10.1029/2010GL044256.