The North Magnetic Pole Has Changed And It Could Cause Major Issues

06 February, 2019, 05:35 | Author: Tara Reeves
  • Earth's magnetic north pole is wandering about 55 kilometres a year

Location of the north magnetic pole (white point) and the magnetic declination (contour interval 2 degrees) at the beginning of 2019.

NOAA wasn't expecting changes to be needed until 2020, but the magnetic North Pole has apparently been heading further away from the Canadian Arctic towards Siberia at an unprecedented rate of 55 kilometers per year. Since 1831, the magnetic north pole in northern Canada has been moving across the Arctic toward Russian Federation.

Usually released every five years, the US-based National Oceanic and Atmospheric Administration (NOAA) said Monday's early update of the World Magnetic Model (WMM) would "accurately represent the change of the magnetic field" since the last update in 2015. "It didn't move much between 1900 and 1980 but it's really accelerated in the past 40 years", said Ciaran Beggan, of the British Geological Survey in Edinburgh. The magnetic field shields Earth from some unsafe radiation, Lathrop said.

The magnetic shift might not be an issue for satellite-based Global Positioning System but USA military ships in the region rely on the pole for navigation.

Since 1831, the north magnetic has been moving across the Canadian Arctic towards Russian Federation, which is unlike the geographic north pole, which is fixed. For example, the airport in Fairbanks, Alaska, renamed a runway 1L-19R to 2L-20R in 2009. Its speed has jumped from about 9mph to 34mph since 2000.

"The difficulty is that we don't have a way to directly observe what is happening in the Earth's core so we have to make a lot of assumptions", Arnaud Chulliat, a geomagnetist at the University of Colorado Boulder and NOA, who works on the WMM, told Motherboard. There is a hot liquid ocean of iron and nickel in the planet's core where the motion generates an electric field, said University of Maryland geophysicist Daniel Lathrop.

Federal organizations like NASA and the Federal Aviation Administration use something called the World Magnetic Model for navigational purposes as well as surveying and mapping, satellite tracking, and air traffic management.

NC State Wolfpack vs. Virgnia Tech: Basketball game recap
State somehow figured out how to turn back the clock in the wrong direction in a 47-24 loss to No. 12 Virginia Tech. Louis against George Washington in 2008 - since the shot clock began in the 1985-86 season, ESPN Stats & Info said.

In general Earth's magnetic field is getting weaker, leading scientists to say that it will eventually flip, where north and south pole changes polarity, like a bar magnet flipping over. Research into rock signatures has shown that this can happen about every 250,000 years, except for the last one - that happened around 780,000 years ago.

'It's not a question of if it's going to reverse, the question is when it's going to reverse, ' Mr Lathrop said.

When it reverses, it won't be like a coin flip, but take 1,000 or more years, experts said.

This pole is defined as the point at which magnetic field lines point vertically down.

All of these differences can cause problems for people and devices that attempt to navigate using the magnetic field.

Earth's magnetic field has been slowly changing throughout its existence. The last time it so happened, with the magnetic north pole getting somewhere near where the magnetic south pole now is, was about 780,000 years ago.

They can be found in the navigation systems of ships and airplanes as well as geological applications - such as drilling and mining. It is also used by smartphone providers for Global Positioning System, maps and compass apps.

Recommended:



Popular

Fowler overcomes strange triple bogey to capture Phoenix Open
In 2018, Fowler entered the final round of the Phoenix Open as the solo leader but dropped to finish in a tie for 11th place. His third shot went into the water and he was handed a one-stroke penalty after his dropped ball rolled back into the water.

It’s official: Super Bowl ratings plummeted in the New Orleans area
That's the lowest overnight rating for a Super Bowl ever recorded in New Orleans , per Jeff Duncan of the Times-Picayune . It's worth noting that, while down significantly, the Super Bowl remains one of the most-watched events of the year.

Brexit blamed for Nissan's decision to move SUV production to Japan
She said a "tipping point" has been reached, adding: "His government's handling of Brexit is undermining our industrial strategy". But it's not expected to be the last as Brexit uncertainty bites.

Dominant New Zealand take Sydney Sevens men's and women's crowns
The defeat means Kenya pick only one point at Sydney 7s, their lowest of this lowest season to move to 12 points. While agonizing, another runner-up berth ensures the US continues its best ever start to a season.

Tesla's latest acquisition means better batteries for its future cars
Maxwell claims they can lengthen the life of a battery by up to two times, and function across a broader temperature range. An ultracapacitor stores energy in an electric field, which is different from a battery that stores it in fluid.

At least 7 dead, many injured in Paris apartment fire, officials say
The couple resided on the 8th floor of the apartment building, while four other Filipinos resided on the first and third levels. Interior Minister Christophe Castaner was the highest-ranking official on the scene, as plumes of smoke speckled the sky.

Messi fitness in doubt ahead of cup clash against Real Madrid
Valverde has not yet used Messi in a first leg game in the Copa del Rey , but Barca lost to Levante and Sevilla without him. Messi's absence at the Camp Nou would be a blow to Barcelona , particularly with the Argentinian in such blistering form.

Google Live Transcription and Sound Amplifier help the hearing-impaired
The first app, called Live Transcribe, uses cloud-based automatic speech recognition to display spoken words on a phone screen. The app uses a dark visual theme by default, which is purported to cause less eye strain than a bright white background.

Trump to press border wall fight in State of the Union speech
Despite the objections of some advisers, Mr Trump announced in December that he was withdrawing United States forces in Syria. The president's address marks the first time he is speaking before a Congress that is not fully under Republican control.

Samsung Galaxy S10 Likely to Come with All-screen Next Year
Samsung's Galaxy Note 9 launch is getting closer and new information about the mighty device surface on the net nearly every day. The latest reveal suggests an in-screen fingerprint reader, 3D facial recognition and triple camera.