Earth’s Core, Magnetic Field Changing Fast, Study Says

Posted: January 18, 2011 in End times, Social Trends
Tags: , , , , , ,

RECENT EVENTS HAVE REPORTED THE DEATH OF THOUSANDS OF BIRDS AND FISH ACCROSS THE GLOBE WITH LITTLE OR ANY REAL EXPLANATION.  HOWEVER HERE IS ONE POSSIBLE EXPLANATION FROM THE NATIONAL GEOGRAPHIC SOCIETY:

Rapid changes in the churning movement of Earth’s liquid outer core are weakening the magnetic field in some regions of the planet’s surface, a new study says. “What is so surprising is that rapid, almost sudden, changes take place in the Earth’s magnetic field,” said study co-author Nils Olsen, a geophysicist at the Danish National Space Center in Copenhagen.

The findings suggest similarly quick changes are simultaneously occurring in the liquid metal, 1,900 miles (3,000 kilometers) below the surface, he said.

The swirling flow of molten iron and nickel around Earth’s solid center triggers an electrical current, which generates the planet’s magnetic field.

The study, published recently in Nature Geoscience, modeled Earth’s magnetic field using nine years of highly accurate satellite data.

Flip-Flop

Fluctuations in the magnetic field have occurred in several far-flung regions of Earth, the researchers found.

In 2003 scientists found pronounced changes in the magnetic field in the Australasian region. In 2004, however, the changes were focused on  SOUTHERN AFRICA .

The changes “may suggest the possibility of an upcoming reversal of the geomagnetic field,” said study co-author Mioara Mandea, a scientist at the German Research Centre for Geosciences in Potsdam.

Earth’s magnetic field has reversed hundreds of times over the past billion years, and the process could take thousands of years

The decline in the magnetic field also is opening Earth’s upper atmosphere to intense charged particle radiation, scientists say.

Satellite data show the geomagnetic field decreasing in the South Atlantic region, Mandea said, adding that an oval-shaped area east of Brazil is significantly weaker than similar latitudes in other parts of the world.

“It is in this region that the shielding effect of the magnetic field is severely reduced, thus allowing high energy particles of the hard radiation belt to penetrate deep into the upper atmosphere to altitudes below a hundred kilometers (62 miles),” Mandea said.

This radiation does not influence temperatures on Earth. The particles, however, do affect technical and radio equipment and can damage electronic equipment on satellites and airplanes, Olsen of the Danish space center said.

ORIGIONALY POSTED IN http://news.nationalgeographic.com/news/2006/05/magnetic-field-1.html

 THIS REPORT COULD PROVE RELEVANT AS TO WHY BOTH BIRDS AND FISH ARE BEING EFFECTED BY SOME UNKNOWN SOURCE.  THE FINDINGS ALSO SUGGEST THAT :

The magnetic field protects Earth from cosmic radiation. In its absence, scientists say, Earth would be subjected to more electrical storms that disrupt power grids and satellite communications. Humans and other animals would possibly be exposed to additional health hazards.

Is it possible that these changes are affecting the navigational senses of animals to the point where they become confused, and if so it is well within the possibility for birds to start doing things which they would not normally do, or for fish to head inwards to the shore rather than out to sea?  Because these effects are not biological as such it is then possible for scientist to simple look at the outward damage.  The physical causes of their deaths rather than what brought about their deaths.

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