Sprites with Halo
Sprites with halo (red disk over the sprites), on Feb. 12-13, 2024, over thunderstorms at the Aegean Sea. Halos occur due to the same mechanism responsible for sprites, appear higher than them, at 70–85 km, last for some ms, and look like faint red disks with a typical diameter of less than 100 km.
TLEs (like red sprites) are upper atmospheric electrical discharges and they appear, under specific circumstances, above thunderstorms (e.g. red sprites appear at altitudes of 40-90 km).
I've used a #Sigma 85 mm lens at f/1.4, for 1/25'' with 40 k iso.
Check our recent #paper about TLEs from Greek-based observers, here: doi.org/10.3390/environsciproc2023026009.
What is a red sprite? Info here: antisimvatikos.blogspot.com/2017/04/red-sprite.html
Photography and Licensing: doudoulakis.blogspot.com/
My books concerning natural phenomena / Τα βιβλία μου σχετικά με τα φυσικά φαινόμενα: www.facebook.com/TaFisikaFainomena/
Sprites with Halo
Sprites with halo (red disk over the sprites), on Feb. 12-13, 2024, over thunderstorms at the Aegean Sea. Halos occur due to the same mechanism responsible for sprites, appear higher than them, at 70–85 km, last for some ms, and look like faint red disks with a typical diameter of less than 100 km.
TLEs (like red sprites) are upper atmospheric electrical discharges and they appear, under specific circumstances, above thunderstorms (e.g. red sprites appear at altitudes of 40-90 km).
I've used a #Sigma 85 mm lens at f/1.4, for 1/25'' with 40 k iso.
Check our recent #paper about TLEs from Greek-based observers, here: doi.org/10.3390/environsciproc2023026009.
What is a red sprite? Info here: antisimvatikos.blogspot.com/2017/04/red-sprite.html
Photography and Licensing: doudoulakis.blogspot.com/
My books concerning natural phenomena / Τα βιβλία μου σχετικά με τα φυσικά φαινόμενα: www.facebook.com/TaFisikaFainomena/