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Sprite night (Jan 11, 2012) in Florida

 
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takacharu



登録日: 2010.07.23
記事: 35

記事日時: Thu Jan 26, 2012 7:41 am    記事の件名: Sprite night (Jan 11, 2012) in Florida 引用付きで返信

Hi all,

We just can't believe this. We observed >50 sprites on Jan 11, 2012
in Florida (Fort Myers). This is truly amazing number of sprite detections
in one single night.

Here are URL links posting peak hold and trigger images of sprites.

- Camera 1
http://asd.gsfc.nasa.gov/Takanori.Sakamoto/GRT-WF/event/20120111/grtwf1/

- Camera 6
http://asd.gsfc.nasa.gov/Takanori.Sakamoto/GRT-WF/event/20120111/grtwf6/

- Camera 7
http://asd.gsfc.nasa.gov/Takanori.Sakamoto/GRT-WF/event/20120111/grtwf7/

In case you are interested, I attached the image below showing the
orientation of our seven cameras. Camera 1 (GRTWF1 in red)
is facing west, Camera 6 (GRTWF6 in green) is facing more-or-less
south and Camera 7 (GRTWF7 in light blue) is facing southwest.

Did anybody observe this sprite storm on Jan 11?

Regards,
Taka



camera_orientation.png
 説明:
Orientation of seven cameras
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camera_orientation.png


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SonotaCo
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登録日: 2004.08.07
記事: 12653
所在地: 139.67E 35.65N

記事日時: Thu Jan 26, 2012 8:01 am    記事の件名: Re: Sprite night (Jan 11, 2012) in Florida 引用付きで返信

Wow Shocked
It might be a dance party of sprites Razz .
It seems you built nice 360 degree observation system.
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Lightningwizard



登録日: 2007.10.19
記事: 165

記事日時: Fri Jan 27, 2012 3:28 am    記事の件名: 引用付きで返信

Very nice, especially those big ones!
Yes 50 sprites in a night is a lot, but in the USA where there are regularly very large storms it may be more common. Researcher Walt Lyons in Colorado has had nights with hundreds of sprites.
Here in Europe some systems produce like 60 sprites once in a while. More typical is 10-30. I had once 77 sprites. Elve nights can be prolific as well with 50-100 events per night over small winter thunderclouds. But this year my area (northeastern Spain) had almost no storms, very unusual. It seems all activity went to the eastern Mediterranean Sea.
However, we broke the record number of sprites in a night for Europe: on 28-29 November 2011 our camera on Pic du Midi recorded 140 events, mainly sprites, over a storm near the coast of Algeria all night long. It is possible that Sahara dust somehow enhanced the electrification of the storm. Expressed in hourly rates the numbers aren't so unusual, though.

Oscar

_________________
Weather & Photography
http://www.lightningwizard.com
EuroSprite blog:
http://eurosprite.blogspot.com
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takacharu



登録日: 2010.07.23
記事: 35

記事日時: Fri Jan 27, 2012 8:39 am    記事の件名: 引用付きで返信

Hi Oscar,

Thanks for sharing your information. Then, our observation is
just a tip of the iceberg. We might expect more of such an sprite storm!
Very encouraging!!

Taka
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