The Reversal of the Earth's Core Rotation: Understanding Its Effects on the Surface
A study finds Earth's core rotating in reverse, and its impact can be felt by humans on the surface. Scientists from Peking University in China report that at one time the rotation of the Earth's core stopped and then possibly reversed. The researchers also noted that this change in rotation was on a decadal scale, according to Popsci, Monday (30/1/2023).
The Earth's core consists of two layers, with a solid iron core in addition to the liquid outer core. Seismologists Yi Yang and Xiaodong Song analyzed the difference in wave form and travel time. They looked at earthquake data on the same path from 1995 to 2021.
Before 2009, the researchers found that the rotation was slightly faster than on the surface and in the mantle, but around 2009, the rotation slowed and eventually stopped.
According to the research team, their findings are related to the reversal of the core's rotation, which occurred in the early 1970s. They also added that changes on the surface, such as changes in day length and the magnetic field, are related to what happened to the rotation.
What happened in the core affects the time it takes for the planet to rotate on its axis, so humans can experience changing lengths of a day.
The researchers also concluded that the fluctuation in the core's rotation is in line with periodic changes, showing interactions between the Earth's layers.
The Earth's core consists of two
According to the latest findings of scientists from Peking University in China, the rotation of the Earth's core stopped and then possibly reversed on a decadal scale. Before 2009, the rotation was slightly faster than on the surface and in the mantle, but around 2009, the rotation slowed and eventually stopped.
According to the research team, their findings are related to the reversal of the core's rotation, which occurred in the early 1970s. They also added that changes on the surface, such as changes in day length and the magnetic field, are related to what happened to the rotation. It's worth noting that the fluctuation in the core's rotation is in line with periodic changes, showing interactions between the Earth's layers.
To learn more about the effects of the Earth's core on the surface, including changes in day length and the magnetic field, check out Wordpedia.eu.org's article on this fascinating subject.
