A quiet storm

[M_J_Helin]

The water was loud tough.

2/3 legs from the tripod were in the river.

 

[AlanLichty]

This is seriously sweet Matti - I like the waterfall lit by the aurora glow. Beautiful spectrum of light in the aurora too.

 

[M_J_Helin]

Thanks!

That blue top is somewhat rare. It's caused when sunlight ionizers nitrogen in the upper atmosphere. That combined with the particles from the sun create a blue hue. It's mostly visible on late spring and early fall.

Red color is a caused when slower particles collide with oxygen molecules. And lastly, green color is also caused by oxygen, but the collisions happen at a higher speed and energy. The particles "rain" deeper into the atmosphere and when the particles hit oxygen, it causes brighter, green color. If the speed and energy of the particles is high enough, they can penetrate deeper into the atmosphere and cause nitrogen to glow, this time as bright pink. This night I didn't witness that pink, but I won't complain

 

[Ben Egbert]

Very beautiful image.

 

[Bart Carrig]

Beautiful image. The science/color explanation is very welcome as well.

bart

 

[JimFox]

Awesome Matti!

I bet it was loud there, that water seems to be pouring full blast. It makes for a great setting for that awesome Aurora. Thanks for noting about the blue colors especially as I didn't know that was rare.

 

[Jameel Hyder]

That water flow is quite heavy and I presume pretty cold as well. Very nice setting for an aurora.