Free Newsletters - Space News - Defense Alert - Environment Report - Energy Monitor
. 24/7 Space News .




EARTH OBSERVATION
European Space Agency says magnetic north is drifting southward
by Brooks Hays
London (UPI) Jun 23, 2013


disclaimer: image is for illustration purposes only

The Earth's magnetic north pole is drifting southward towards Siberia, according to researchers at the European Space Agency (ESA).

As part of ESA's Swarm mission, scientists have been mapping the planet's magnetic field with the help three satellites. Each satellite is equipped with several Earth-studying tools -- including magnetometers, which measure the magnetic field's strength and direction.

"I started my career in magnetometry and the accuracy we had then in the laboratories was less than what we can fly in space now," Volker Liebig, the director of Earth observation at ESA, recently told BBC News. "So what we have on Swarm is fantastic, but we need long time series to understand fully the Earth's magnetic field, and we will get that from this mission."

Results from the Swarm mission suggest that not only is magnetic north on the move, but the entire magnet field is weakening, leaving Earth potentially exposed to additional cosmic radiation. This, however, is considered normal, with the magnet cloak likely to regain its strength in the near future.

Analysis of ancient rocks buried deep in the Earth lead scientists to believe Earth's magnetic north and south poles switch every few million years. The latest from Swam suggests the poles may once again be preparing to trade sides; though the flip-flop itself takes several thousand years.

A study published in 2011 surmised that the shifting magnetic poles are affected by the movement of Earth's tectonic plates.

Currently, Swarm satellites have only honed in on the general magnetic field generated by Earth's molten core. But scientists expect to study more delicate magnetic fields in the future, such as the field generated by the movement of the world's oceans.

"These initial results demonstrate the excellent performance of Swarm," said Rune Floberghagen, ESA's Swarm Mission Manager. "With unprecedented resolution, the data also exhibit Swarm's capability to map fine-scale features of the magnetic field."

.


Related Links
Earth Observation News - Suppiliers, Technology and Application






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





EARTH OBSERVATION
Monitoring climate change from space
Paris (ESA) Jun 16, 2014
How do measurements from satellites flying above Earth provide essential information on the effects of climate change on our planet? Scientific and political organisations considered the question in London. Held at the Royal Society, the 'Space: the new view on climate change' event focused on climate change monitoring by satellites and the achievements of ESA's Climate Change Initiative. ... read more


EARTH OBSERVATION
NASA LRO's Moon As Art Collection Is Revealed

Solar photons drive water off the moon

55-year old dark side of the moon mystery solved

New evidence supporting moon formation via collision of 2 planets

EARTH OBSERVATION
Curiosity celebrates one-year Martian anniversary

Aluminum-Bearing Site on Mars Draws NASA Visitor

Mars Curiosity Rover Marks First Martian Year with Mission Successes

NASA's 'flying saucer' tests new Mars-landing technology

EARTH OBSERVATION
Orion Parachute Test Hits No Snags

Orion's parachutes help it land safely after 10-second free fall

NASA has a Problem with Unauthorized Access to it's Technologies

Elon Musk plans to take people to Mars within 10 years

EARTH OBSERVATION
Chinese lunar rover alive but weak

China's Jade Rabbit moon rover 'alive but struggling'

Chinese space team survives on worm diet for 105 days

Moon rover Yutu comes closer to public

EARTH OBSERVATION
Space station astronauts wager friendly bet on USA vs. Germany match

Last European space truck set for July 24 launch

A Laser Message from Space

D-Day for the International Space Station

EARTH OBSERVATION
SpaceX to launch six satellites all at once

Arianespace A World Leader In The Satellite Launch Market

Airbus Group and Safran To Join Forces in Launcher Activities

European satellite chief says industry faces challenges

EARTH OBSERVATION
Mega-Earth in Draco Smashes Notions of Planetary Formation

Kepler space telescope ready to start new hunt for exoplanets

Astronomers Confounded By Massive Rocky World

Two planets orbit nearby ancient star

EARTH OBSERVATION
Whale of a target: harpooning space debris

Strange physics turns off laser

Raytheon touts blimp-borne radar system

NIST technique could make sub-wavelength images at radio frequencies




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement All images and articles appearing on Space Media Network have been edited or digitally altered in some way. Any requests to remove copyright material will be acted upon in a timely and appropriate manner. Any attempt to extort money from Space Media Network will be ignored and reported to Australian Law Enforcement Agencies as a potential case of financial fraud involving the use of a telephonic carriage device or postal service.