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如何旋转地球核心的影响气候?

在最近的一篇论文发表在《自然》杂志上sugests 60 - 70年核心旋转周期,它是说:

有趣的是,同样的数十年周期性也观察到地球的气候系统,特别是全球平均气温和海平面上升。

断言引用这篇论文出版于1994年。

这是数十年气候周期气候学家之间广泛接受吗?它可能是由于其他原因比核心旋转在这项研究之前?

可以核心旋转影响的气候如何?

杨,Y。、歌曲、x(2023):“数十年变化的地球内核旋转。”Nature Geoscience.https://doi.org/10.1038/s41561 - 022 - 01112 - z

施莱辛格,M。Ramankutty: (1994)“一个全球气候系统的振荡期65 - 70年。”Nature 367, 723–726.https://doi.org/10.1038/367723a0

回答

我有四件事要说这方面:1。纸太新。我不是说第一篇论文是错误的(这实际上是相当有趣的),但昨日公布,它太新的作为一切的基础。发表在同行评议的杂志上发表科学开始,而不是结束。等一等科学界确认或拒绝赔偿。2。这两个效应可能是完全无关的。3所示。如果他们是相关的,你可能会混淆因果关系。可能是什么原因气候振荡反过来导致振荡在内核的旋转速度。 4. What the authors of the paper in question are reporting to have observed is a small differential rotation between the mantle+crust and the inner core. It could well be that the inner core rotates much more smoothly than does the mantle+crust. In other words, they're seeing variations in the rotation rate of the mantle+crust. We know as a fact that the Earth's rotation rate is gradually slowing down. Scientists see this far in the past in tidal rhythmites locked in stone. More recent signs were ancient astronomers/astrologers (the two were the same "science" up to Kepler's time) who recorded solar eclipses at specific cities. Those solar eclipses would have happened elsewhere on the Earth if the Earth maintained a more or less constant rotation rate. Thanks to atomic clocks and long baseline interferometry, scientists readily see seasonal changes in the Earth's rotation rate. Snow falls on the northern parts of the North Hemisphere in winter and melts in the summer. That represents transfers of angular momentum between the oceans, the cryosphere, and the crust. These variations are easy to see. Precise measurements of the Earth's rotation rate also show what appears to be longer term oscillations in the Earth's rotation. It appears that there is a multidecadal oscillation in the Earth's rotation rate that is correlated with the 60 to 70 year Atlantic Multidecadal Oscillation (AMO). Since very good data on the Earth's rotation only goes back 60 to 70 years, it's a not quite conclusive. The same goes for the AMO; very good meteorological data only goes back 100 years or so. The cause of the AMO is debated. The teleconnections between it and other climate observations are also debated. However, the AMO does appear to impact climate, and climate in turn appears to impact Earth rotation. (We know climate as a fact that impacts Earth rotation on a yearly basis.) The Earth comprises multiple rotating parts: The atmosphere, the cryosphere, the oceans, the crust and mantle, the liquid outer core, and the solid inner core. These different parts exchange angular momentum with one another (and also with the Moon). Except for the seasonal variations and the long term secular transfer to the Moon, teasing out cause and effect in the variations of the Earth's rotation rate is a non-trivial exercise.

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\ begingroup美元我的第一感觉是这是一个快速断言所以我倾向认为你又点2。作者引用的一项研究从1994年的70年气候周期;他们migth只有搜索相匹配的论文研究。有趣的你说的第三点(气候可能不同内核旋转速度)。成为一个热门的问题。你能解释给观众更多的点3标题问题是回答?(如何旋转影响气候吗?)。 \ endgroup美元
- - - - - -user28185
1月25日在每天上午
1

\ begingroup美元 @Universal_learner你有因果落后了。气候影响地球自转。我的猜测是,核心是一个简单的时钟比地球表面。(通过“时钟”我的意思是,它旋转的均匀比地球表面)。我们学会了在150年前,地球表面并不伟大的时钟。 \ endgroup美元
- - - - - -大卫Hammen
1月25日在11:44
1

\ begingroup美元我想微分旋转会影响AMO(数十年的振荡问题,论文的作者提到)。这是过度投机。机制将地球的磁场。磁场变化之间的相关性和气候有点回避话题,有点太接近为大多数研究者电动宇宙无稽之谈。(电宇宙吸引完全是胡说八道。)然而,仅仅提示和无稽之谈往往关上门在合法的研究。 \ endgroup美元
- - - - - -大卫Hammen
在1月25日12:07

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