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Alarming NOAA data, rapid pole shift.
- Thread starter The_Unbeliever
- Start date
But it didn't, its happening now!I was saying this was ganna happen 6 years ago
Even faulty clocks are right twice a dayI was saying this was ganna happen 6 years ago
. Besides, many people have said it was going to happen before you said it was .I wonder if this is somehow linked with our quiet sun. NASA recently had to lower their upper limits for sunspot activity even more.
HavocXphere
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No not linked to sun activity.
Unless you're navigating by compass, its nothing to be alarmed about. The earth has been doing this for thousands of years & will continue to do so for thousands more. Somewhere along the line there will be pole reversal, but thats unlikely to happening in our life time.
http://en.wikipedia.org/wiki/Magnetic_polarity_reversal#Future_of_the_present_field
Unless you're navigating by compass, its nothing to be alarmed about. The earth has been doing this for thousands of years & will continue to do so for thousands more. Somewhere along the line there will be pole reversal, but thats unlikely to happening in our life time.
http://en.wikipedia.org/wiki/Magnetic_polarity_reversal#Future_of_the_present_field
What’s the magnetic deviation? About 30 years ago it was 21 degrees East (marine compass corrections).
Archer
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Nothing to worry about!?
You do realise that the magnetic field shields us from the suns radiation dont you? During a reversal the field is weakened and hence more radiation gets through.
SirFooK'nG
Executive Member
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tinfoil hat will be insufficient !!!
Yes, and we in Southern Africa (western cape) is part of the 'decreased protection against radiation' anomaly called the SAA - The South Atlantic Anomaly. read more here: http://en.wikipedia.org/wiki/South_Atlantic_Anomaly
Wiki: The Geomagnetic field around earth
Future of the present field
At present, the overall geomagnetic field is becoming weaker; the present strong deterioration corresponds to a 10–15% decline over the last 150 years and has accelerated in the past several years; however, geomagnetic intensity has declined almost continuously from a maximum 35% above the modern value achieved approximately 2000 years ago.
The rate of decrease and the current strength are within the normal range of variation, as shown by the record of past magnetic fields recorded in rocks.
The nature of Earth's magnetic field is one of heteroscedastic fluctuation.
An instantaneous measurement of it, or several measurements of it across the span of decades or centuries, is not sufficient to extrapolate an overall trend in the field strength.
It has gone up and down in the past with no apparent reason.
Also, noting the local intensity of the dipole field (or its fluctuation) is insufficient to characterize Earth's magnetic field as a whole, as it is not strictly a dipole field.
The dipole component of Earth's field can diminish even while the total magnetic field remains the same or increases.
The Earth's magnetic north pole is drifting from northern Canada towards Siberia with a presently accelerating rate — 10 km per year at the beginning of the 20th century, up to 40 km per year in 2003, and since then has only accelerated.
Glatzmaier and collaborator Paul Roberts of UCLA have made a numerical model of the electromagnetic, fluid dynamical processes of Earth's interior.
The results of their computational simulation reproduced key features of the magnetic field over more than 40,000 years of simulated time. Additionally, the computer-generated field reversed itself.
Effects on biosphere and human society
Because the magnetic field has never been observed to reverse by humans with instrumentation, and the mechanism of field generation is not well understood, it is difficult to say what the characteristics of the magnetic field might be leading up to such a reversal.
Some speculate that a greatly diminished magnetic field during a reversal period will expose the surface of the Earth to a substantial and potentially damaging increase in cosmic radiation.
However, Homo erectus and their ancestors certainly survived many previous reversals, though they did not depend on computer systems that could be damaged by large Coronal mass ejections.
There is no uncontested evidence that a magnetic field reversal has ever caused any biological extinctions.
A possible explanation is that the solar wind may induce a sufficient magnetic field in the Earth's ionosphere to shield the surface from energetic particles even in the absence of the Earth's normal magnetic field.
Another possible explanation is that magnetic field actually does not vanish completely, with many poles forming chaotically in different places during reversal, until it stabilizes again.
------ ends wiki
read more: The Electromagnetic Spectrum : http://en.wikipedia.org/wiki/Electromagnetic_spectrum
read more: Geomagnetic reversal: http://en.wikipedia.org/wiki/Geomagnetic_reversal
read more: Earths Magnetic Field : http://en.wikipedia.org/wiki/Earth's_magnetic_field
read more: Van Allen Radiation Belts : http://en.wikipedia.org/wiki/Van_Allen_radiation_belt
read more: South Atlantic Anomaly : http://en.wikipedia.org/wiki/South_Atlantic_Anomaly
read more: Solar variation : http://en.wikipedia.org/wiki/Solar_variation
Future of the present field
At present, the overall geomagnetic field is becoming weaker; the present strong deterioration corresponds to a 10–15% decline over the last 150 years and has accelerated in the past several years; however, geomagnetic intensity has declined almost continuously from a maximum 35% above the modern value achieved approximately 2000 years ago.
The rate of decrease and the current strength are within the normal range of variation, as shown by the record of past magnetic fields recorded in rocks.
The nature of Earth's magnetic field is one of heteroscedastic fluctuation.
An instantaneous measurement of it, or several measurements of it across the span of decades or centuries, is not sufficient to extrapolate an overall trend in the field strength.
It has gone up and down in the past with no apparent reason.
Also, noting the local intensity of the dipole field (or its fluctuation) is insufficient to characterize Earth's magnetic field as a whole, as it is not strictly a dipole field.
The dipole component of Earth's field can diminish even while the total magnetic field remains the same or increases.
The Earth's magnetic north pole is drifting from northern Canada towards Siberia with a presently accelerating rate — 10 km per year at the beginning of the 20th century, up to 40 km per year in 2003, and since then has only accelerated.
Glatzmaier and collaborator Paul Roberts of UCLA have made a numerical model of the electromagnetic, fluid dynamical processes of Earth's interior.
The results of their computational simulation reproduced key features of the magnetic field over more than 40,000 years of simulated time. Additionally, the computer-generated field reversed itself.
Effects on biosphere and human society
Because the magnetic field has never been observed to reverse by humans with instrumentation, and the mechanism of field generation is not well understood, it is difficult to say what the characteristics of the magnetic field might be leading up to such a reversal.
Some speculate that a greatly diminished magnetic field during a reversal period will expose the surface of the Earth to a substantial and potentially damaging increase in cosmic radiation.
However, Homo erectus and their ancestors certainly survived many previous reversals, though they did not depend on computer systems that could be damaged by large Coronal mass ejections.
There is no uncontested evidence that a magnetic field reversal has ever caused any biological extinctions.
A possible explanation is that the solar wind may induce a sufficient magnetic field in the Earth's ionosphere to shield the surface from energetic particles even in the absence of the Earth's normal magnetic field.
Another possible explanation is that magnetic field actually does not vanish completely, with many poles forming chaotically in different places during reversal, until it stabilizes again.
------ ends wiki
read more: The Electromagnetic Spectrum : http://en.wikipedia.org/wiki/Electromagnetic_spectrum
read more: Geomagnetic reversal: http://en.wikipedia.org/wiki/Geomagnetic_reversal
read more: Earths Magnetic Field : http://en.wikipedia.org/wiki/Earth's_magnetic_field
read more: Van Allen Radiation Belts : http://en.wikipedia.org/wiki/Van_Allen_radiation_belt
read more: South Atlantic Anomaly : http://en.wikipedia.org/wiki/South_Atlantic_Anomaly
read more: Solar variation : http://en.wikipedia.org/wiki/Solar_variation