论文标题
签名与大西洋子午翻转循环中的多频倾角一致
Signatures consistent with multi-frequency tipping in the Atlantic meridional overturning circulation
论文作者
论文摘要
早期发现临界点的早期发现是一个重要的理论和实用挑战。临界点最常见于折叠分叉下稳态或周期溶液的消失。我们在这里讨论多频倾利（M尖），这是由于吸引人的消失而引起的。在具有至少两个可以相互作用的固有或外部频率的系统中，M-Tipping是一种通用现象，因此与各种各样的感兴趣系统有关。我们表明，在M型中涉及的分叉的更复杂的序列为尚未解释的行为提供了一个可能的一致解释，在气候模型中，在大西洋子午的翻转循环中观察到了近乎倾斜的行为。更一般而言，这项工作为确定在多频系统中倾斜的早期训练迹象提供了途径。
The early detection of tipping points, which describe a rapid departure from a stable state, is an important theoretical and practical challenge. Tipping points are most commonly associated with the disappearance of steady-state or periodic solutions at fold bifurcations. We discuss here multi-frequency tipping (M-tipping), which is tipping due to the disappearance of an attracting torus. M-tipping is a generic phenomenon in systems with at least two intrinsic or external frequencies that can interact and, hence, is relevant to a wide variety of systems of interest. We show that the more complicated sequence of bifurcations involved in M-tipping provides a possible consistent explanation for as yet unexplained behavior observed near tipping in climate models for the Atlantic meridional overturning circulation. More generally, this work provides a path towards identifying possible early-warning signs of tipping in multiple-frequency systems.
