magnetic pole reversal | Science Of Cycles News and Research

Part-VIII Just Where Are We in this Cycle of Magnetic Reversal?

Here we are now, in Part VIII of this series, and I would think a great question to ask would be “Where in this layered multitude of decadal, centennial, and millennial magnetic reversal cycles are we?” Current studies suggest we are further along the process indicating we could be just several decades, or perhaps a century or two away from a full magnetic reversal. Like all historic magnetic reversals, the process takes a few thousand years to develop. With each passing decade from the previous cycle, the intensity of charged particles increase as the Earth’s magnetic field decreases.

My research suggest the current influx of cosmic rays has increased over the last few decades, with noticeable increase over the last two years. Data from the Swarm satellite have shown the magnetic field is starting to weaken faster than in the past. Previously, researchers estimated the field was weakening about 5 percent per century, but the new data revealed the field is actually weakening at 5 percent per decade, or 10 times faster than thought. As such, rather than the full flip occurring in about 2,000 years, as was predicted, the new data suggest it could happen much sooner.

Historically, during extended solar minimum cycles which could range from 40,000 years to 700,000 years – each being its own cycle within a cycle, could be a contributing factor in historic global extinctions. I would ascertain and with using minimal consideration, you might have surmised a large part of my research is the study of cycles, hence, my company’s title Science Of Cycles.

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An instinctive second and third question you might inquire would be: “What do we look for and what actually happens related to a magnetic shift?” I would suggest that perhaps within the next 20-30 years, there will be people alive today who will witness the process of magnetic north bouncing around the northern hemisphere above 60° latitude and swing between 30° east and 30° west longitudes. Furthermore, there will be some of you who are young enough to witness a more pronounced swing in both latitude and longitude as magnetic north will drop below the equator then bounce back within the next 50-60 years.

For a full polarity reversal to occur, the magnetic field needs to weaken by about 90% to a threshold level. This process can take thousands of years, and during this time, the lack of a protective magnetic shield around our planet allows more cosmic rays – high-energy particles mostly from within our galaxy Milky Way, but also from neighboring galaxies, will be able to penetrate our solar system and Earth. When this happens, these cosmic rays collide with more and more atoms in our atmosphere, such as nitrogen and oxygen. This produces variants of elements called cosmogenic isotopes, such as carbon-14 and beryllium-10, which fall to the surface. This provides a method of tracking reversals of the past, which helps assess future events.

Part – IX The Mysterious South Atlantic Anomaly

(PART III) Magnetic Pole Reversal Coming Sooner Than You Think

According to scientists’ best estimates, the Earth’s magnetic field is now weakening around 10 times faster than previously predicted, losing approximately 5% of its strength every decade. This finding indicates a magnetic pole reversal could be coming sooner rather than later.

The geomagnetic dipole has decreased by nearly 6% per century since first measured by Gauss in the 1840s. This too is 10-20 times faster than the “Ohmic” decay rate. (The process by which the passage of an electric current through a conductor releases heat). The causes of this rapid decrease in Gauss stability, is the proliferation of reverse magnetic field on the core-mantle boundary. This has occurred especially beneath the South Atlantic with the transference of heat energy in a horizontal stream of the magnetic field from high to low latitudes.

The weakening of Earth’s magnetic field has two fundamental points. First: A weakened magnetic field allows charged particle events such as galactic cosmic rays, gamma rays, solar flares, and coronal mass ejections (CME), to produce enhanced consequences to extreme weather events that include earthquakes, volcanoes, hurricanes, tornadoes etc.

Second: The second major consequence of a weakened magnetic field is its identification as the ‘precursor’ to a magnetic pole shift. It is estimated that Earth’s magnetic field reverses every few thousand years at low latitudes and every 10,000 years at high latitudes. It is believed we are far enough along the cycle that many living today will witness the bouncing back and forth of magnetic north and it swings reaching latitudes below 30°. Magnetic north can also move east and west longitudes.

Precursor First – Then Full Magnetic Flip
Individual magnetic reversal records show a remarkable degree of repeatability, including dipole collapse, rapid polarity change, and fast dipole intensity recovery stages. This is to say historical magnetic field reversals indicate that during the period of Earth’s magnetic field reduction, it will be in flux for several years before a full magnetic flip will incur. At this stage of magnetic minimization close to zero point, the magnetic field may have multiple swings north and south across the equator, additionally with large excursions of geomagnetic polar flux in east and west longitudes.

The final stage of reversal is when the dipole intensity partially recovers. An example of this phenomena would be magnetic north suddenly dropping down to at or below the equator, then rapidly snapping back to say and briefly exceeds the surface non-dipole intensity, which in turn is followed by a very rapid dipole intensity collapse, final reversal, and recovery of the dipole intensity in the new polarity position. The final latitudes and longitude positions are unknown. However, historical records indicate north will be south – and south will be north – but at what degrees North-South-East-West is anyone’s guess.

When the poles flip, having a compass that points South instead of North does not seem like too big of a deal to humans, but there is a question of what will happen other animals. Certain migratory animals like sea turtles and birds use the magnetic field in order to orient themselves. A reversal of the poles could interfere with their ability to do so.

Another concern about the reversal is that the weakening of the magnetic field, which precedes the flipping event, will mean that it will not be able to adequately shield us from the Sun’s radiation. Although there is no direct evidence in the fossil record of a “mass” extinction correlating with a field reversal or an influx of radiation, records show there have been selective extinctions. Additionally, there is concern of what could happen to power grids, satellites and effects on weather patterns.

The question is not ‘will there be a magnetic pole reversal’, but at what phase are we currently in? I would suggest we are in the last phases. There are many of you who will be able to witness a magnetic reversal firsthand, what transpires over the next 50 to 60 years. Unfortunately, I will not be one of them but my kids will be; and they have been instructed to take good notes and photos to pass on to their kids.

JUST IN: Released Today, New Finding May Play Integral Role for Monitoring Earth’s Magnetic Flip

This is not the first time of such a rapid new discovery is published within days of an article I produced outlining my hypothesis and what is likely to come next. Just two days ago I sent out my article titled New Study Reinforces Cyclical Magnetic Pole Reversals telling of the various descriptive patterns which have been shown to fit short and long term reversal cycles.

earth-magnetic-field-neutron field-diagram5

In an upcoming article later this week, I will describe signs and symptoms during the process of a full magnetic reversal which fits the pattern of historic cycles over what would be described as a ‘moderate’ time period, geologically speaking, covering a few hundred thousand years. There is also a longer term cycle which covers a few million years; however, there is also a short term cycle which occurs approximately every 40,000 years.

Magnetic_Reversal_Process_m — Snapshots spaced about 2 kyr apart during a rapid magnetic polarity reversal from a numerical dynamo. Top sequence shows the evolution of the intensity of the radial component of the magnetic field on the core-mantle boundary (CMB). Red contours indicate radially outward-directed magnetic field; blue contours indicate radially inward-directed magnetic field, with continental outlines shown for reference. Middle two sequences show the evolution of magnetic field lines within the core, color-coded according to their polarity (i.e., orientation) in the equatorial plane, with northward oriented magnetic field indicated by blue-colored field lines, and magnetic field pointing toward the south indicated by red-colored field lines. The bottom sequence shows the major vortices in the outer core, with red indicating positive (cyclonic) and blue indicating negative (anticyclonic) vorticity, respectively. Credit: Peter Olson – Johns Hopkins University

What I believe to be one of the most important questions, or should be, where in this current cycle are we today? My research covering the galaxy-sun-solar system connection which involves the discovery of various term cyclical events, suggests we are far along the process with just a few decades away from a significant excursion or full reversal.

I would suggest we are deep into the cycle, and perhaps far enough along to witness (and sense) magnetic north bouncing around the northern hemisphere above 60° latitude and swing down between 30° east and 30° west longitudes. Perhaps a most intriguing thought, is the idea that many of you are young enough to witness a phase of pronounced swings in both latitude and longitude within the next 50-60 years.

In today’s news, the discovery of two massive mantle plumes, residing on opposite sides of our planet. They sit next to or directly on the inner core approximately 1,800 miles (2,896 km) deep. This would be just the type of massive plume which could create a wobble as it goes through its natural process of convection.

Arizona State University scientists Edward Garnero, Allen McNamara and Sang-Heon (Dan) Shim, of the School of Earth and Space Exploration head up the team, and their work appears in the June issue of Nature Geoscience. “We believe our finding will help explain the plumbing that leads to some massive volcanic eruptions, as well as the mechanism of plate tectonics from the convection, or stirring, of the mantle. This is the geo-force that drives earthquakes.

massive_mantle_plumes

Earth is layered like an onion, with a thin outer crust, a thick viscous mantle, a fluid outer core and a solid inner core. The two plumes sit in the mantle on top of Earth’s core, under the Pacific Ocean on one side and beneath Africa and the Atlantic Ocean on the other.

Waves from earthquakes passing through Earth’s deep interior have revealed that these plumes are regions where seismic waves travel slowly. The mantle materials that surround these regions are thought to be composed of cooler rocks, associated with the downward movement of tectonic plates.

The plumes, also called thermo-chemical piles, have long been depicted as warmer-than-average mantle materials, pushed upward by a slow churning of hot mantle rock. The new paper argues they are also chemically different from the surrounding mantle rock, and may partly contain material pushed down by plate tectonics. They might even be material left over from Earth’s formation, 4.5 billion years ago.

Much is yet to be learned about these plumes. But the emerging view from seismic and geodynamic information is that they appear denser than the surrounding mantle materials, are dynamically stable and long-lived, and have been shaped by the mantle’s large-scale flow. The scientists expect that further work on the two deep-seated anomalies will help clarify the picture and tell of their origin.

“If a neuroscientist found an unknown structure in the human brain, the whole community of brain scientists, from psychologists to surgeons, would actively pursue understanding its role in the function of the whole system,” Garnero said.

“As the thermo-chemical piles come into sharper focus, we hope other Earth scientists will explore how these features fit into the big puzzle of planet Earth.”

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