The early major warming in December 2001 – exceptional?

The early major warming in December 2001 – exceptional?
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2001 年 12 月出现的早期重大变暖——例外吗?

DOI:
10.1029/2002gl015316
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发表时间:
2002
影响因子:
5.2
通讯作者:
K. Labitzke
K. Labitzke
中科院分区:
地球科学1区
文献类型:
--
作者:
B. Naujokat;K. Krüger;K. Matthes;J. Hoffmann;M. Kunze;K. Labitzke

文献摘要

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描述了2001年12月的早期主要变暖,并与1998年和1987年的另外两次12月主要变暖进行了比较,在所有三种情况下都显示出强烈的对流层-平流层耦合。我们认为,自由向西传播的Rossby波与强迫准定常波数1相互作用的发生导致了这三个早期事件。这些波的可能的激发进行了讨论,对流层环流,这表明在北方大西洋早期的主要变暖之前,强大的阻塞。
The early major warming in December 2001 is described and compared to the two other December major warmings in 1998 and 1987, showing a strong tropospheric‐stratospheric coupling in all three cases. We argue that the occurrence of free westward propagating Rossby waves interacting with a forced quasi‐stationary wave number 1 led to these three early events. The possible excitation of these waves is discussed with respect to the tropospheric circulation, which showed strong blockings over the northern Atlantic prior to the early major warmings.