Auroras
Taken by Chad Blakley on November 5, 2019 @
Abisko National Park, Sweden
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Another great night in Abisko! We enjoyed one of my favorite types of displays early this morning: the pulsating aurora. At around 3:00 in the morning a large green band developed above Abisko National Park – this is a very normal occurrence. As time passed the band began to dissipate. At around 3:30 the break up developed into a classic pulsating aurora. I remember seeing lots of these pulsating auroras at the bottom of the last solar minimum and I was always fascinated by the phenomenon. The best way to describe a pulsating aurora is to imagine the sky as a large checker board. As the pulsating begins, the black squares on the board would illuminate as a green aurora: then in an instant, all the black squares lose their illumination and the red squares on the imaginary checkerboard immediately glow green. I like to think of it as one of nature’s greatest light shows. The images that our webcam captured show this phenomenon with still images, but you can see an old time-lapse of the pulsating auroras that I captured in late October 2014 which provides a slightly better understanding of what the pulsations actually looks like here: https://vimeo.com/110053840
Photographer's website:
https://www.lightsoverlapland.com
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