Stratospheric Ash Clouds
Taken by Laura Kranich on July 2, 2019 @
Near Kiel, Schleswig-Holstein, Germany
Click photo for larger image
| |
Camera Used: SONY ILCE-7RM3
Exposure Time: 1/250
Aperture: f/5.0
ISO: 125
Date Taken: 2019:07:03 02:25:51
|
|
| More images
Details:
In the evening of the 2nd of July I could witness an amazing display of a stratospheric ash cloud in the sunset twilight. It barely showed any structures except for some horizontal stripes and slight wavy patterns supposing very stable atmospheric conditions. I suppose it is smoke from large forest fires in mid June in Canada and/or Siberia, as we here in Europe had these twilights before, in 2017 during the worst fire season of British Columbia in recorded history with measured aerosol optical depths never recorded before. I made a little video documentation about my obversations at that time, you can watch it here: https://www.youtube.com/watch?v=qc_fJ8NKDPA.
Last night they were only visible when the sun went very low over and under the horizon as well. First they were more or less without any colors, only a slightly yellowish tone but after sunset it became a spectacular display of colors all across the north(west)ern horizon. Some images I took with a fisheye lens to fully capture the whole extent. After the sun was down to about 5 degrees under the horizon, the colors almost completely disappeared again, leaving only a narrow, dark and slightly orange band across the northern sky.
I hope 2019 is not heading towards becoming the worst northern fire season again. Possibly there's also a link to the Russian Raikoke eruption a few days ago.
The photos above are in chronological order.
Photographer's website:
No URL provided.
|
|
|
