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Home / Science / The magnetic north pole changes faster than predicted news | DW

The magnetic north pole changes faster than predicted news | DW



Scientists had planned to launch a new update of the World Magnetic Model (WMM) on January 15, due to new fluctuations in Earth's magnetic field. However, this has been delayed due to the US government arrest.

Although the magnetic north pole – unlike the geographic North Pole – is constantly in motion, the magnetic field changes faster than previously predicted by scientists, a report said this week was published in the journal Nature.

The World Magnetic Model is updated every five years to account for shifts in the field, and the last one took place in 2015. However, in 2016, part of the magnetic field was "temporarily deep-accelerated below North-South America and the eastern Pacific," Nature .

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8, scientists from the US National Oceanic and Atmospheric Administration and the British Geological Survey recognized that they would need to publish an updated WMM because this was the case had become so inaccurate that it was nearing the acceptable limit for navigation errors. "

The migratory pole is driven by unpredictable changes in the fluid iron interior e the Earth.

Due to the shutting down of the US government, scientists were unable to publish the updated WMM. Instead, they postponed the deadline to January 30, hoping that the government will rule by then. However, it is unclear whether this will be the case.

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  Infographic shows changes in the magnetic north since 1900

& # 39; Your Orientation & # 39;

While tracking can be tracked using GPS technology, WMM provides guidance for aircraft, naval vessels and even smartphones. "Their orientation and the direction they look in comes from the magnetic field," said James Friederich, a scientist at the US Geo-Spatial Intelligence Agency, in 2014, before the latest WMM update.

"Our war fighters use magnetic cards to orient their cards, and your smartphone camera and various apps can use the magnetic field to determine the direction you are looking in. All of these examples require the WMM to get the proper orientation." [19659002] However, scientists are still in the dark about accelerating changes in the magnetic field. The shifts are fueled by changes in the currents – like the ocean – the molten iron in the earth's core. But why they accelerate now remains a mystery.

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