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|
Photographer,
Location |
Images |
Comments |
RED=magnetic
field
BLUE=ground current
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Rob Stammes,
Lofoten, Norway
Oct. 12, 2008 |
#1,
more |
When magnetometer
needles began to swing at the Polar
Light Center in Lofoten, Norway, researcher Rob Stammes
knew something was up. "A geomagnetic storm was underway."
The storm began on Oct. 11th when a solar wind stream hit
Earth's magnetic field. Stammes' magnetometer recorded the
impact and subsequent reverberations, which lasted for hours.
In the chart
recording, red shows how the local magnetic field was
swinging back and forth while blue denotes electrical currents
surging through the ground in response. Outside, Northern
Lights were pulsating in sych with the chart recorder's
colored pens. "The ground current fluctuated with a
5-to-10 second period; the visible auroras were switching
on and off in the same way," he says. "It was
a really special sight." |
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Sauli Koski,
Kittila Finland Oct. 12, 2008 |
#1,
#2, #3,
#4, #5,
#6, #7,
#8, more |
Finally good auroras and no clouds!
Photo
details: Nikon
D3, Nikon 12-24 lens, 6 sec f3,2 ASA 800
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Ragnar Johnskaas,
Ringsaker, NORWAY
Oct. 11, 2008 |
#1,
#2,
more |
This was my
first time this autumn watching aurora borealis. The photos
were taken short before midnight local time.
Photo
details: Canon
EOS 20D, 10 sec exposures, F:2.2, 400 ASA |
|
Jari Ylioja,
Vatjusjärvi,Haapavesi, Finland
Oct. 11, 2008 |
#1,
#2, #3,
more |
At my latitude,lights
wasn't so very bright but i managed to get these shots.
Photo
details: Canon
EOS-1D Mark II, ISO asetus: 1600 |8-15.0s | F: 2.8-4.0
|17,0mm. |
more
images:
from
MaryLou Graham onboard the National Geographic Explorer crossing
the Davis Strait between Greenland and Baffin Island; from
Claus Vogel of Pangnirtung, Baffin Island; from
Christian Praetorius of Bifröst, Iceland |
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