Articles tagged "geomagnetic field"

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Mysterious ‘geomagnetic spike’ 3000 years ago challenges our understanding of the Earth’s interior

The Earth’s magnetic field, generated some 3 000 km (1 860 miles) below our feet in the liquid iron core, threads through the whole planet and far into space – protecting life and satellites from harmful radiation from the Sun. But this shielding effect...

November 09, 2017

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Geomagnetic storms reaching G2 - Moderate levels, spotless Sun

Earth is again under the influence of a recurrent, positive polarity, northern extension Coronal Hole High Speed Stream (CH HSS). G1 - Minor geomagnetic storm level threshold was reached at 11:55 UTC, followed by G2 - Moderate at 19:21 UTC. Over the past 24 hours,...

November 07, 2017

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The anomaly in the Earth’s magnetic field which has geophysicists abuzz

In this interview, EGU's Laura Roberts Artal speaks with Jay Shah, a Ph.D. student at Imperial College London, who is investigating the South Atlantic Anomaly, a patch over the South Atlantic where the Earth’s magnetic field is weaker than elsewhere on the...

September 25, 2017

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Flying through explosive magnetic phenomenon to understand space weather

Analyzing data obtained by four identical spacecraft that passed directly through a magnetic reconnection site on the boundary between the solar wind and Earth's magnetosphere, researchers have observed how this explosive physical process converts stored...

May 13, 2016

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Earth's magnetic complexity begins to untangle - Swarm mission

After a year in orbit, the three Swarm satellites have provided a first glimpse inside Earth and started to shed new light on the dynamics of the upper atmosphere – all the way from the ionosphere about 100 km above, through to the outer reaches of our protective

June 22, 2015

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CME impact from X1.6 solar flare generated strong G3 geomagnetic storm and bright auroras

The Earth's magnetic field got disturbed in response to the arrival of the September 10 halo CME caused by X1.6 solar flare. Magnetometers around the world recorded a Geomagnetic Sudden Impulse at 15:55 UTC which signaled the arrival of the CME at

September 12, 2014

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Earth's magnetic field showing signs of significant weakening

​The first set of high-resolution results from ESA’s three-satellite Swarm constellation reveals the most recent changes in the magnetic field that protects us from cosmic radiation and charged particles that bombard Earth. Magnetic field is in a permanent...

June 19, 2014