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Life Line

Iceland trip

Aurora Borealis

I have always wanted to see Aurora Borealis (Northern Lights) and I never managed to see it the five years I lived in Norway. The Aurora is caused by the collision of energetic particles coming from the Sun with the atmosphere. Their typical green colour comes from the interaction of the particles with Oxygen atoms in the atmosphere. The auroral mechanism is better explained on Wikipedia. Because the particles are charged, they are directed towards the magnetic poles of the Earth.

Aurora gets more intense, and is visible on lower latitudes, when a geomagnetic storm is in progress. One of their causes is a coronal mass ejection (CME) on the Sun which sends huge quantities of matter and electromagnetic radiation out into space. When CMEs are directed towards Earth they cause a geomagnetic storm which increases the change of Aurora Borealis to occur.

The solar cycle, which is eleven years is a cycle in which the Sun's activity goes from very little activity to a lot of activity and back to very little. During solar maximum there is a lot higher chance of a CME to occur. Originally the most recent solar maximum was forecasted to be in 2010 or 2011 but more recent predictions expect it to be this autumn. For some unexpected reason, Auroras are strongest around the vernal and autumnal equinoxes.

With it being so close to both the vernal equinox and solar maximum we set off to Iceland in the hope to be able to see them. The original plan was to seek them out on the second night of our trip (March 18th) but just before we left I noticed through the SpaceWeather site that the Sun produced a solar flare as well as an Earth-bound CME. Instead of trying our luck the 2nd night we decided to book an extra excursion as chances where very high that we would see the Aurora on our first night (March 17th). The Aurora Buddy application that I had installed on my phone had constantly been warning me about high activity all through Sunday after all. The image above shows the extend of auroral activity on the night of the 17th. Just when we got on the bus to travel to some darker skies the Aurora already showed up in the sky visible through Reykjavik's city lights...

When we got to the viewing location, the sky was fully alight as you can see in this timelapse:

Aurora Timelapse, near Vogar, Iceland on March 17th.

This timelapse shows the auroras over a three minute period with a picture taken every 5 seconds. At a frame rate of 3 frames per second this is sped up 15 times. The show lasted until about midnight, when we headed back to Reykjavik. Some more still photos are available on flickr.

The Golden Circle

Of course, Iceland has much more to offer than just the occasional show of Auroras and the next morning we set off on the Golden Circle—a trip past Iceland's touristic highlights. Our first stop was Þingvellir, the site of Alþingi, the first Icelandic parliament that was founded in 930. It is situated in a rift valley that marks the crest of the Mid-Atlantic Ridge and is part of Þingvellir National Park.

After Þingvellir we proceeded to the geyser Strokkur (Icelandic for "churn"). It's quite spectacular to see a whole lot of water being launched in the air every 4 to 8 minutes.

Our next stop was Gullfoss, a waterfall in the river Hvítá. I had visited Gullfoss in summer many many years ago and this trip's experience was quite different. It was so increadible windy and cold that we could hardly make it to view the waterfall. However, with the ice surrounding it it was quite beautiful:

Smoke and Wind

The last day of the trip consisted of exploring the Rejkjanes peninsula which is a large geothermic area. We visited the Kerið crater, the geothermal fields Seltún and Gunnuhver, the cliffs near Reykjanestá and the "Bridge between two continents". The colours of some of the landscapes were beautiful, but there was a strong cold wind almost everywhere which made us want to go to the car very fast most of the time. Something to re-explore in summer I suppose.

Blue Lagoon

After a good night's dinner, drinks and rest we spend the last morning of our trip with our bottoms in the Blue Lagoon to relax. A perfect ending to a quick, but gorgeous trip in Iceland. We'll be back!

For further photos and timelapses, please see my flickr set.


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