Kevin Palmer

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  • For the 2nd night in a row, there was an active display of the northern lights in Abisko, Sweden. Starting off as a dull glow in the north after sunset, it quickly exploded with bright green spiral swirls filling the entire sky. Here above the Arctic Circle the aurora is ever present, encircling the Earth's poles in a zone called the auroral oval. Even during solar minimum when solar activity is quiet, the northern lights are visible on almost any clear night. And Abisko sees more clear nights than surrounding areas because the mountains to the west create a rain shadow effect. Visible beyond the forest of short birch trees, is Torneträsk, Sweden's 6th largest, and 2nd deepest lake.
    Green Cyclone
  • After a 35-minute ride on a chairlift in the dark, I arrived at the Aurora Sky Station, 1000 meters above sea level near the top of the mountain Nuolja. Below stretched out a panoramic view of the lake Torneträsk, the lights from Abisko village, and other peaks of the Scandinavian Mountains. The weather was ideal. Even though temperatures were at the lower limit in which the lift is allowed to operate, the skies were clear and the wind was calm. Unfortunately the aurora was calm as well. The northern lights danced a little on the ride up, then faded to a weak glow barely perceptible for the rest of the night. But I tried to make the most of my time up here by shooting this startrail image. I processed it in a way to fade the trails into the background while bringing out the colors of the faint green aurora band. Even though my camera was pointed due north, it was not possible to include the North Star in the shot, at least not without shooting vertically. In Arctic latitudes the North Celestial Pole is too high up in the sky.
    Nuolja Star Trails
  • This aurora corona was mesmerizing to watch. It was moving and changing so fast, even a 1 second exposure was too long.
    The First Corona
  • In mid-latitudes I always consider bright moonlight as an obstacle to seeing the aurora. But in the Arctic the aurora is so bright that I can use a short exposure, and including the moon in the shot is not an issue.
    Snaking Aurora
  • A vivid alpenglow shines on the mountains on the other side of the frozen lake Torneträsk in Swedish Lapland. Lingering snow showers were swirling around the highest peaks. The native Sami people recognize 8 seasons here instead of 4, and "spring-winter" occurs in March and April. The snow hasn't started melting yet, but temperatures do moderate a bit when the sun returns after being absent for over a month. The hours of daylight increase significantly from day to day as the nights grow ever shorter. In early April the sky no longer gets completely dark (marking the end of aurora season) and by the latter part of May the sun will stay up 24/7. Spring-winter is the favorite season of many residents since it's the best time of year for skiing, snowmobiling, and dog sledding.
    Altastjarro Sunset
  • A bitter wind blew across the icy mountainside in Björkliden, Sweden, while the moon illuminated the landscape below. I had heard about this overlook, but couldn’t find it in time to capture the first wave of auroras at 10PM. But since it was my last clear night in the Arctic, I waited until 1AM for the aurora to come back. A green stripe first appeared to the east, featureless and unmoving but slowly getting brighter. It was almost like a rubber band building up tension, until suddenly it released. Within seconds the northern lights filled the entire sky, moving and changing faster than I could possibly capture it. This is known as a substorm, and they occur several times a night when geomagnetic conditions are favorable. The solar wind piles up charged particles on the tail side of the magnetosphere. When the magnetic field line snaps, these particles are quickly funneled towards the Earth’s poles which causes a sudden expansion and brightening of the aurora. It’s not completely understood what triggers this ‘snap’. But the unpredictability is what makes the aurora so fascinating to watch, you never know what it's going to do next.
    The Second Substorm
  • After taking the chairlift to the Aurora Sky Station in Swedish Lapland the aurora was unfortunately very weak. But it was a crystal clear night and the stars were still beautiful.
    Andromeda and Faint Aurora
  • Even though the moon was bright, the aurora had no problem shining through. And the moonlight made for better pictures as it lit up the landscape.
    Above the Shaking Trees