Current Atlantic Meridional Overturning Circulation weakest in last millennium
Current Atlantic Meridional Overturning Circulation weakest in last millennium
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DOI：
10.1038/s41561-021-00699-z
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发表时间：
2021-02-25
影响因子：
18.3
通讯作者：
Rahmstorf, S.
中科院分区：
文献类型：
--
作者：
Caesar, L.;McCarthy, G. D.;Rahmstorf, S.
大西洋子午线翻转环流(AMOC)是地球上主要的海洋环流系统之一，它重新分配了地球上的热量，并对气候产生了重大影响。在这里，我们比较了各种已公布的代理记录，以重建自公元400年以来AMOC的演变。出现了一个相当一致的图景：在经历了一个长期和相对稳定的时期后，从19世纪开始有一个最初的减弱，随后在20世纪中叶出现了第二次更快的下降，导致了近几十年来最弱的AMOC状态。
The Atlantic Meridional Overturning Circulation (AMOC)-one of Earth's major ocean circulation systems-redistributes heat on our planet and has a major impact on climate. Here, we compare a variety of published proxy records to reconstruct the evolution of the AMOC since about AD 400. A fairly consistent picture of the AMOC emerges: after a long and relatively stable period, there was an initial weakening starting in the nineteenth century, followed by a second, more rapid, decline in the mid-twentieth century, leading to the weakest state of the AMOC occurring in recent decades.