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View Full Version : ISUAL and "Sprites"



Wolverine
2004-Jul-19, 02:48 PM
Very cool (http://www.spaceflightnow.com/news/n0407/18sprites/)! 8)

I wasn't aware of this mission (http://sprite.phys.ncku.edu.tw/En/mission.html#objectives) -- it'll be interesting to see what the data and imagery collected reveal about such events.

UCB press release here (http://www.berkeley.edu/news/media/releases/2004/07/16_sprite.shtml).


http://www.berkeley.edu/news/media/releases/2004/07/images/sprite.jpg
A colorized photo of sprites in the upper atmosphere above a bright flash of lightning. The sprites, photographed over Africa by ISUAL on July 13, 2004, are at an altitude of about 80-90 kilometers (about 55 miles), just below the airglow layer visible across the top of the image. (Stephen Mende/UC Berkeley)

MAPNUT
2004-Jul-19, 04:58 PM
Might sprites be visible from a plane flying above the clouds? I flew coast-to-coast last May above a whole series of spectacular thunderstorms, and didn't notice anything coming out the tops. Maybe I didn't look high enough?

Wolverine
2004-Jul-19, 06:28 PM
As it states in the article and press release:


But little is known about them because they occur between 50 and 100 kilometers above the earth's surface, too high for airplanes to study and too low for most satellites.

John Kierein
2004-Jul-19, 08:51 PM
They are seen from the ground and from aircraft. I tried to get an observatory to observe them from atop Mt. Evans.
Mende and Wescott were both PIs on CRRES. I worked with both of 'em.
http://elf.gi.alaska.edu/

Manchurian Taikonaut
2004-Jul-19, 10:10 PM
amazing picture

Wolverine
2004-Jul-20, 02:10 AM
They are seen from the ground and from aircraft. I tried to get an observatory to observe them from atop Mt. Evans.
Mende and Wescott were both PIs on CRRES. I worked with both of 'em.
http://elf.gi.alaska.edu/

Thanks for the correction, I was mistakenly under the impression that these events were not visible from terra firma. Any idea how many such observations have been made from the ground?

Wally
2004-Jul-20, 05:12 PM
sprites and jets have interested me since I first heard of them back in the 90's. I'd love to actually catch sight of the phenom myself. Not sure how many terra views there's been, but I've heard your best chance to see them is when the storm is several tens of miles away, near the horizon, so that the cloud tops are all you can see.

sarongsong
2004-Jul-27, 03:11 AM
More pics:
Blue jets (http://news.nationalgeographic.com/news/2003/06/0625_030625_atmospherethunder.html) and lightning sprite. (http://www.spacedaily.com/news/eo-04zzz.html)