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As Magnetic North Pole Zooms Toward Siberia, Scientists Update World Magnetic Model (npr.org)

An anonymous reader quotes a report from NPR: Earth's geographic north pole is fixed. But the planet's magnetic north pole -- the north that your compass points toward -- wanders in the direction of Siberia at a rate of more than 34 miles per year. That movement may seem slow, but it has forced scientists to update their model of Earth's magnetic field a year earlier than expected so that navigational services, including map-based phone apps, continue to work accurately. The drift results from processes taking place at the center of the planet. Molten iron and nickel slosh and spin in the planet's core, essentially serving as a metallic conductor for Earth's magnetic field. Changes in that fluid flow lead to changes in the magnetic field. As a result of those changes, the accuracy of the National Oceanic and Atmospheric Administration's World Magnetic Model (WMM) -- a mathematical representation of the magnetic field -- slowly deteriorates in the five-year periods between updates. The next update was due in 2020. But "unplanned variations" have degraded the quality of the WMM so greatly that NOAA published an out-of-cycle update Monday. It was delayed from January by the partial government shutdown.

76 of 161 comments (clear)

  1. geographic north pole is not fixed either by iggymanz · · Score: 4, Interesting

    spin axis of earth drifts too, about 10 cm a year, caused by events that redistribute the earth's mass.

    1. Re:geographic north pole is not fixed either by AlwinBarni · · Score: 1

      spin axis of earth drifts too, about 10 cm a year, caused by events that redistribute the earth's mass.

      Interesting - never heard of it.

      Do you mean Polar motion as one of the Earth's rotation axis distortions (others being precession and nutation)?

    2. Re: geographic north pole is not fixed either by ChrisMaple · · Score: 1

      One obvious technique is astronomical observations, based on the reasonable assumption that the Earth wobbles more than the whole universe.

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    3. Re:geographic north pole is not fixed either by iggymanz · · Score: 1

      yes nutation due to mantle changes are part of it

      https://earthsky.org/earth/ear...

    4. Re: geographic north pole is not fixed either by iggymanz · · Score: 1

      why don't you read about it and learn?

        "very-long-baseline interferometry lunar laser ranging and satellite laser ranging"

      https://en.wikipedia.org/wiki/...

  2. Re:Time to update airport runways by NikeHerc · · Score: 4, Funny

    That same runway in the opposite direction is 30.

    I hope you aren't a pilot. The opposite end of runway 20 is runway 2.

    --
    Circle the wagons and fire inward. Entropy increases without bounds.
  3. Re:Dza Ruzzians are behind it!! by Tablizer · · Score: 2

    Not Putie this time, but by T's hair: Bigly static charge.

  4. Re:Time to update airport runways by Falconhell · · Score: 4, Informative

    Close, its runway 02 in aviation speak.

  5. Question by Shalinitechgeek · · Score: 1

    Is these changes in earth magnetic field associated with Tsunami or other major natural calamities ?

    1. Re:Question by stealth_finger · · Score: 1

      Is these changes in earth magnetic field associated with Tsunami or other major natural calamities ?

      No its associated with changes in flow of the molten metal at the core. rtfs.

      The drift results from processes taking place at the center of the planet. Molten iron and nickel slosh and spin in the planet's core, essentially serving as a metallic conductor for Earth's magnetic field. Changes in that fluid flow lead to changes in the magnetic field.

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  6. Re:Dza Ruzzians are behind it!! by Brett+Buck · · Score: 2

    Uh, aren't the left the ones obsessed with nutty Russian conspiracy theories 24/7? With a little time set aside for impeachment fantasies?

  7. Pole reversal? by technosaurus · · Score: 1

    How many degrees off of true north is it when the poles reverse or at what rate of change? Has that even been determined using the Atlantic rock layers? If not, it could be good to know.

    1. Re:Pole reversal? by Mashiki · · Score: 1

      Off true north? There's nothing beyond guesses. But before reversals the poles have moved as much as 6deg/day.

      --
      Om, nomnomnom...
    2. Re:Pole reversal? by Solandri · · Score: 1

      I suspect pole reversals are a consequence of the rotational axis of the Earth's core not being perfectly aligned with the minimum or maximum moments of inertia. When you spin an object around a different axis that the minimum or maximum moments of inertia, it tumbles - the rotational axis is not fixed, and drifts almost chaotically. Occasionally it will suddenly flip.

      If correct, pole reversals are going to be unpredictable unless you can exactly measure the inertia tensor of the Earth's core and its rotation axis and rate. Good luck with that since it's under thousands of miles of rock and magma.

  8. Re:OMg by q_e_t · · Score: 1

    Only Norway has any significant amount of oil of the three Nordic countries.

  9. Re:Time to update airport runways by CaptQuark · · Score: 1

    It also depends if you are in the areas where the magnetic pole is moving directly toward or away from you. In those areas the direction to the magnetic pole will remain the same. Other areas where the direction of travel is perpendicular to your direction to the pole will see a larger change, increasingly larger the closer you are to the magnetic pole.

  10. Re:OMg by PolygamousRanchKid+ · · Score: 4, Funny

    Only Norway has any significant amount of oil of the three Nordic countries.

    The Spanish Inquisition:

    Our three Nordic countries are Norway, Sweden and Finland . . . and Denmark. Our four Nordic countries are Norway, Sweden, Finland and Denmark . . . and Iceland. Our five Nordic countries are Nordic countries are Norway, Sweden, Finland, Denmark, and Iceland . . . and Greenland.

    Oh, bugger. Among our Nordic countries . . .

    --
    Schroedinger's Brexit: The UK is both in and out of the EU at the same time!
  11. Re: OMg by Opportunist · · Score: 3, Insightful

    Could you define them for us? It's a boring day at work and I need a laugh.

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  12. Re:Build That Wall by Opportunist · · Score: 1

    Hitler had no problem giving half the Poles to the Ruskies, and he was a staunch anti-commie!

    --
    We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
  13. Re:Dza Ruzzians are behind it!! by Opportunist · · Score: 1

    Remember the times when it was the right that did the scaremongering of the Reds? Those were the days...

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  14. DAMN RUSSIANS! by LynnwoodRooster · · Score: 5, Funny

    First they steal Ukraine. Then they steal our election. Now they steal the North Pole!

    --
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  15. Re:Nobody knows what generates the magnetism by LynnwoodRooster · · Score: 4, Funny

    The truth is, there is NOTHING at the center of the Earth, because the Earth is hollow. I mean, I saw about it on the Internet and if it's on the Internet, it has to be true!

    --
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  16. Re:Time to update airport runways by 6Yankee · · Score: 5, Funny

    That depends where you are. Merkins don't seem to bother with the leading zero, whereas here in Yurp we definitely do. Something about our socialist paradise creating jobs for paint-makers and number-painters, I think. ;)

  17. Re:Time to update airport runways by 6Yankee · · Score: 1

    Chuck Norris lands on runway 37, after roundhouse kicking the magnetic north pole into submission.

  18. Re:Who pays for the paint and software updates!!?? by 6Yankee · · Score: 1

    Hardly all of them. Each number covers a whole 10 degrees of magnetic heading, and the linked NPR article talks about a 2.5-degree shift over 22 years.

  19. Re:OMg by angel'o'sphere · · Score: 1

    Hey man! You have a problem with counting!!
    Or a problem where north is!!

    But you are funny, was about to write something similar.

    But hint: Greenland belongs to Denmark. (Not hint for you but the other readers)

    --
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  20. Re:I assume you read my TheRegister comments by 110010001000 · · Score: 1

    Why don't YOU explain it, since you are the only one who understands what you are asking? Try to do it without using the words "Electric Universe".

  21. Re:Time to update airport runways by Applehu+Akbar · · Score: 1

    Those painted runway numbers are going to have to be replaced with LED displays and periodically updated. This will be a huge cash cow for some electronics company.

  22. Russia will soon own both magnetic poles by jfdavis668 · · Score: 1

    The South Magnetic Pole is already close to Vostok station in Antarctica.

  23. Re:Build That Wall by Oswald+McWeany · · Score: 1

    The North Pole needs a wall to keep it in place. Make the penguins pay for it!! We cannot give that pole to the Ruskies

    There are no penguins anywhere near the North Pole. Penguins are only in the Southern Hemisphere, if they lived in the Arctic they would be quickly wiped out by polar bears as they have no way to defend themselves or to evade a land-predator.

    You would have to get Polar Bears to pay for the wall since the North Pole is in the North.

    --
    "That's the way to do it" - Punch
  24. Re:Build That Wall by Oswald+McWeany · · Score: 1

    Hitler had no problem giving half the Poles to the Ruskies, and he was a staunch anti-commie!

    Yeah, but he was planning to take it back (along with all of Eastern Europe) at a later date. He was only loaning the Pole to Russia.

    --
    "That's the way to do it" - Punch
  25. Re:Nobody knows what generates the magnetism by DigiShaman · · Score: 1

    You're all WRONG! The Earth has a creamy nougat center.

    --
    Life is not for the lazy.
  26. Re:Who pays for the paint and software updates!!?? by ceoyoyo · · Score: 2

    Runways are named by magnetic heading. https://en.wikipedia.org/wiki/...

  27. Re:OMg by Type44Q · · Score: 1

    The Nordic Model is subsidized by oil and weapons exports; it's not remotely sustainable.

  28. Re: Dza Ruzzians are behind it!! by c6gunner · · Score: 1

    You know, things that are actually true and have sent a whole bunch of people to jail so far.

    Yeah, that McCarthy guy was quite successful.

  29. not Trump .. by umghhh · · Score: 1

    but Putin is doing this - he waves his dick. This does not cause much besides wave of hysteria in msm - this in turn has a mass and causes many disturbances - some cannot sleep, some lose their cool and have sex w/o protection and some others exit EU or vote Trump into office. The amount of heat caused by waving the dick itself is also minimal but the amount of heat generated by over excited journalists may cause serious damage to our planet. Therefore I think we will have to remove: Putin, Trump and all the journalists that are so agitated about the two all the time.

  30. Re:Build That Wall by AlwinBarni · · Score: 1

    There are no penguins anywhere near the North Pole...

    True

    ... Penguins are only in the Southern Hemisphere, ...

    Not true: "...the Galapagos penguin, found north of the equator., from: https://en.wikipedia.org/wiki/...

    ... if they lived in the Arctic they would be quickly wiped out by polar bears ...

    I think only partially true, as there were penguins in the north and indeed were wiped out but not by polar bears but by humans: Great Auk.

  31. Climate by argStyopa · · Score: 2

    Here's a question: as the earth's magnetic field is based significantly on the location of the magnetic pole, the strength of any electromagnetic field varies significantly depending on the incidence angle of incoming particles (ie to exclude solar wind) has anyone studied what impact this shift would have on earth's climate?

    Looking at http://wdc.kugi.kyoto-u.ac.jp/... the pole has shifted 5x the distance recently as at the start of the last century. Does the northward shift of the magnetic field by 16-17 degrees with increasing speed track at all with increasing surface temps?

    --
    -Styopa
    1. Re:Climate by Areyoukiddingme · · Score: 1

      Here's a question: as the earth's magnetic field is based significantly on the location of the magnetic pole, the strength of any electromagnetic field varies significantly depending on the incidence angle of incoming particles (ie to exclude solar wind) has anyone studied what impact this shift would have on earth's climate?

      Yes.

      Danish astrophysicist Henrik Svensmark and Danish geophysicists Mads Knudsen and Peter Riisager say those shifts in the magnetic field that allow more charged particles to enter the atmosphere affect cloud formation in the upper atmosphere. They say the current alignment has been reducing cloud formation and precipitation at lower latitudes for the last hundred years, increasing temperatures.

      Knudsen, Mads F. and Peter Riisager. "Is there a link between Earth’s magnetic field and low-latitude precipitation?" Geology (2009) 37 (1) pp 71-74.

      They didn't have the nerve to title the paper with a declarative, but their abstract says yes, there's a significant statistical correlation.

    2. Re:Climate by argStyopa · · Score: 1

      Ouch, that sort of conclusion would be enough to get you kicked out of, well, everything.

      Thanks for the link.

      --
      -Styopa
  32. Re:Nobody knows what generates the magnetism by Red_Forman · · Score: 1

    Nobody knows what's at the center of the Earth [...]

    That's not true. There has been many Hollywood-financed expeditions since 1959.

  33. Re:blame climate change by Red_Forman · · Score: 1

    I got used to everything being blamed on climate change.

    Your phone bill just got more expensive? Climate change.

  34. Map-based phone apps? by Red_Forman · · Score: 1

    I thought GPS used satellites, and smartphones used both GPS and cell towers, not magnetic north. WTF is all that bullshit?

    1. Re:Map-based phone apps? by pi_rules · · Score: 2

      Have you ever noticed your phone can show your orientation on a map if you stand perfectly still and turn in a circle? That's not GPS. That's just a magnetic compass at work.

    2. Re:Map-based phone apps? by budgenator · · Score: 1

      You would think so, but it's both, my phone one app points to magnetic north and is telling me that the magnetic field strength is 49.5 T, another can switch between magnetic, network or GPS direction.

      --
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    3. Re:Map-based phone apps? by ChrisMaple · · Score: 2

      49.5 T is an enormously high magnetic field. Perhaps 49.5 microTesla?

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  35. Re:Nobody knows what generates the magnetism by LynnwoodRooster · · Score: 2

    I can PROVE you are wrong:

    Nougat is made with honey and egg whites. Lizards love honey and eggs. Thus, if there was a nougat center, the lizard people who live in the hollow Earth would have eaten it all, instead of coming up and mutilating our cattle.

    Thus, it is complete proof - the presence of the lizard people inside the hollow Earth demands that it is not a nougat center. And referenced for you as well. QED.

    --
    Browsing at +1 - no ACs, I ignore their posts. So refreshing!
  36. Re:OMg by GLMDesigns · · Score: 1

    And the same way that fascism != capitalism and that free-market capitalism != corporatism (what was called mercantilism in the 18th and 19th C)

    That being said the relationship between socialism and communism is much, much closer than the above mentioned "equalities."

    Socialism allows for some private ownership while communism doesn't. But both are collectivist ideologies considering the state as supreme (with a few exceptions - Proudhon, Bakunin, Kropotkin - who never got large, politically influencial followings) and both reject individuals entering into compacts on their own; and both consider inequality of outcome to be a problem (if not a crime) that the state must prevent.

    Again, the difference between the two matter only to those involved in the details. Just like there is a major difference between Anarcho-Capitalists and Classical Liberals. But just tell that to those who consider libertarians to be equal to free-market conservatives which are themselves be equal to neo-cons and all of them are equal to fascists.

    --
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    Vote 3rd Party in 2016 and beyond
  37. Re:No problem, let me rephrase by budgenator · · Score: 1

    >

    Q1. So how is the orientation fixed? It cannot be arbitrary because the same effect must work across electrons everywhere, but by what mechanism?

    Q2. The electro-magnetic wave thing seems obvious.... we get waves from across the universe, the stars they came from has long gone, how, why, what exactly is oscillation there? Why is the rule coordinating that oscillation for a long gone star across the universe the same as the local rule now? How does the orientation in Q1 still apply to both then and now?

    Q3. Maybe you don't understand my point about such a coordination being in 3 dimensions?
    There cannot be a 4th dimension, consider 2 dimensional space, in 2D world to pass someone you go above them or below them. If someone passed you by disappearing then reappearing later behind you, you'd notice the violation of the rules of 2D space and realize the 3rd dimension. Likewise in our universe, you'd see the same thing, galaxies would partially disappear, only to reappear elsewhere. The axis of spin could not be described in 3D space, and we'd deduce the 4th dimension.
    Without a 4th dimension, that coordination must be within the current 3 dimensions. Is this agreed? Or are you asserting higher dimensions in your model?

    Q4. So you have some co-coordinating force between velocity, magnetic field, and electric field connecting all three to an electron. And to *every* electron, across the entire universe, and also to photons/waves, because their rules also coordinate. How can you prove that the spin of the magnetic core isn't *driven* by this force, rather than the spin being a passive aspect of earth rotation?

    It's Quantum Mechanics, anything you can wrap your mind around is wrong

    --
    Apocalypse Cancelled, Sorry, No Ticket Refunds
  38. Re:OMg by budgenator · · Score: 1

    The Nordic Model is subsidized by oil and weapons exports; it's not remotely sustainable.

    The Nordic Model isn't what you think it is, they flirted with Socialistic leanings for a while but that's changed. Now they are more free-market than the US, they've flattened their tax rates, privatized healthcare and school vouchers.

    --
    Apocalypse Cancelled, Sorry, No Ticket Refunds
  39. Re: Build That Wall by Opportunist · · Score: 1

    Not sure if trolling or really clueless.

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    We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
  40. Re:Time to update airport runways by budgenator · · Score: 1

    The Magnetic North Pole is moving toward the Geographic North Pole so the declination is reducing for almost everyone.

    --
    Apocalypse Cancelled, Sorry, No Ticket Refunds
  41. Re:Russian Hackers! by Highdude702 · · Score: 1

    Sorry the earth runs linux, they editeded .field_rd

    That's why it has such good uptime.

  42. Re:Nobody knows what generates the magnetism by budgenator · · Score: 1

    Woah, that's some kind of red pill!

    --
    Apocalypse Cancelled, Sorry, No Ticket Refunds
  43. Re:Dza Ruzzians are behind it!! by Brett+Buck · · Score: 1

    You mean those that have nothing to do with the Russians and occured long before there was a Trump campaign? And as far as I can tell, there is exactly *one* person in jail so far. The Russians were involved through the Hillary campaign, with faking the "Trump Dossier", etc, and while some have been indicted, they are conveniently out of reach.

          The "whole bunch of people in jail" nonsense is just an example of what I was talking about. Just like Karl Rove getting "frog-marched out of the White House", and a series of similar delusional notions held by the hard left.

  44. Re:OMg by q_e_t · · Score: 1

    Ah, yes - Nordic (includes Finland), Scandanavia does not.

  45. Re:OMg by q_e_t · · Score: 1

    I don't think Iceland has oil either. Just cod and Bjork.

  46. Re:Retarded Republicans... by Hylandr · · Score: 1

    At what point does projection become defined as a disorder?

    AC needs therapy.

    --
    ~ People that think they are better than anyone else for any reason are the cause of all the strife in the world.
  47. Re: Retarded Republicans... by Hylandr · · Score: 1

    *Boom*

    Wish I had mod points.

    +1 pls.

    --
    ~ People that think they are better than anyone else for any reason are the cause of all the strife in the world.
  48. Re: OMg by ChrisMaple · · Score: 1

    Both communism and socialism are based on the idea that theft is good if performed by the government.

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  49. Re:OMg by ChrisMaple · · Score: 1

    The essential difference between communism and socialism is that communism has the explicit policy of bringing about government domination by quick violence, whereas socialism uses other techniques such as fraud, the slow ratcheting up of violence, corrupting the educational system, massive public bribery, etc..

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  50. Re:Climate Change by ChrisMaple · · Score: 1

    Pole taxes are unconstitutional (snicker).

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  51. Re:Time to update airport runways by NikeHerc · · Score: 1

    Close, its runway 02 in aviation speak.

    If you're going to be pedantic (and that's ok with me), then you should have said "zero two" since that's how aviators and ground weenies say it.

    --
    Circle the wagons and fire inward. Entropy increases without bounds.
  52. Re: Build That Wall by c6gunner · · Score: 1

    I can help you out there: you're clueless.

  53. Re:Who pays for the paint and software updates!!?? by angel'o'sphere · · Score: 1

    Thanks, that is interesting.

    Strangely I learned in my last job it would be true north and not magnetic north. Perhaps I learned it wrong or forgot it already :D

    --
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  54. Re:Time to update airport runways by dcw3 · · Score: 1

    I'm guessing that you're being funny, but in case your not, I've never seen a single digit runway heading. Private pilot here.

    --
    Just another day in Paradise
  55. Re:Build That Wall by AlwinBarni · · Score: 1

    Penguins are named after the Great Auk's latin name (Pinguinus impennis), but are not closely related. Auks are closer relatives of razorbills, murres and guillemots.

    Yes, you have a point - indeed the discussion was about penguins birds, not genus Pinguinus.

    However not related, yet connected, thus mentioned: from wikipedia: The great auk (Pinguinus impennis) ... It was the only modern species in the genus Pinguinus. ... It is not closely related to the birds now known as penguins ...

  56. Re: Build That Wall by Opportunist · · Score: 1

    Just for the record, do they teach that in US schools that "national socialism" has anything to do with socialism or is that the usual internet-bred bullshit?

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  57. Re: OMg by Opportunist · · Score: 1

    Mmm... so far at best a little smile, keep trying.

    C'mon, we know you can do it!

    --
    We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
  58. Re: Build That Wall by c6gunner · · Score: 1

    I wouldn't know; do they reach you in dumbfuckistan to assume that everyone who doesn't believe the same bullshit as you do must be from the US?

  59. Re: Build That Wall by Opportunist · · Score: 1

    Nah, just statistical likelihood. Usually total ignorance coupled with "socialism == teh evilz" is a hallmark of US indoctrination.

    --
    We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
  60. Re: Build That Wall by c6gunner · · Score: 1

    Interesting. Do they do a really poor job of teaching reading comprehension in your country, or is that just your cluelessness shining through again?

  61. Re:Precession, by iggymanz · · Score: 1

    NO!

    this is something else. Precession of earth does not change the location of the pole as we see it on earth, precession is change of orientation of rotational axis in relation to space, in other words where the pole points.. Earth axis in relation to space goes in 25,772 year cycle and ends up pointing to same place in space it did before

    But this movement I mention changes where the pole is located on Earth (precession doesn't)

  62. Re:Time to update airport runways by 6Yankee · · Score: 1

    I don't have any idea where "here" is, but assuming US... Have a look at, for example, LAX or ATL on Google Earth. First airports I thought of.

    Are you simply in a part of the country where wind or terrain causes them all to be aligned north-west/south-east?

  63. Re:Who pays for the paint and software updates!!?? by 6Yankee · · Score: 1

    You're partly right.

    Precisely because of magnetic variation, I believe runways in the far north of Canada are often designated (for example) 27T, with the T standing for True. I've never seen it painted on a runway, but up there they'll probably be gravel or snow-covered gravel anyway. Google imagery for Alert (CYLT) shows snow, not very helpful either way!

  64. Re: Build That Wall by Opportunist · · Score: 1

    Ok, I bite. How was I supposed to interpret "An anti-commie, but a national socialist. That's like being a staunchly anti-vegan vegetarian."

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