Earth is a beautiful planet, which is an abode for humans, birds, animals and the species which you might have not even heard about. There has always been a charm associated with it. The environment, the stratosphere, the many layers which make the earth, its core and the list is way large.
In this context, there are executed many projects and programs to understand in depth about the constituent and the alterations. In this very line of thought, an initiative was put up by the European Space Agency. They executed the Swarm program. Under this program triplet of satellites were designed to calculate the magnetic field of Earth in immense details.
And, the result was amazing. The result of the research has been summarized as here:
-The announcement pertaining to the same were made at the American Geophysical Union in San Francisco.
-The satellites detected a jet stream of iron hiding with the liquid outer core of the planet.
-Chris Finlay, senior scientist, Technical University of Denmark mentioned to the BBC News about the same- “this is very dense liquid metal, and it takes a huge amount of energy to move this thing around.”
-It is travelling at a speed of 31 miles per year.
-As of present it is in the Northern Hemisphere, moving westwards going towards the underneath of Alaska and Siberia.
-It is not just moving around the molten iron, nickel space; it is also gaining speed every time.
-As of present it possesses a width of 261 miles. This is almost equal to the planet’s circumference divided by half.
-Amidst the year’s span of 2000 and 2016, the amplitude of its wave has considerably enhanced, almost 25 miles per year.
-In fact, its strength is increasing magnetically so immensely that the impact of the same is also witnessed on the rotation of the solid inner core.
-The team of researchers has proposed likeability that the iron jet stream is encircled around a boundary called as ‘target cylinder’.
-It encompasses the solid inner core and stretches from North Pole to the South.
-Hence, in accordance with the team, the iron jet stream is pulled around due to the alteration in the magnetic field of the core.
-In fact, even when the researchers were unknown to the iron jet stream, the outer liquid core always had its significance. The latter is 1400 miles thick.
The outer core reaches a temperature of 13,940 deg Fahrenheit. It has a resemblance like that of a heat engine that drives the enormous convection current. In fact, this is what in turn accelerates the plate tectonics further up. This definitely has an indispensable role in inducing the Earth’s magnetosphere.
The fact complements the aspect that the outer core is imperative for life on Earth.
As of present, immense is said and mentioned pertaining to the iron jet stream. However, there is even much more which is left unanswered.