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SonotaCo Site Admin
登録日: 2004.08.07 記事: 12669 所在地: 139.67E 35.65N
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Lightningwizard
登録日: 2007.10.19 記事: 165
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SonotaCo Site Admin
登録日: 2004.08.07 記事: 12669 所在地: 139.67E 35.65N
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日時: Mon Nov 19, 2007 9:17 am 記事の件名: |
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Oh! very clear elves .
It seems energy of lightnings are very strong. Do you know the polarity of those lightnings?
We usually observed elves by strong positive polarity lightnings in winter upon the snow storms.
We have just entered winter sprite season in Japan also, but it is too early for such strong lightnings.
Thank you for using Japanese. It might be very tough . You can use English here also.
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ITO
登録日: 2004.08.09 記事: 1304 所在地: 東京都杉並区浜田山
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日時: Tue Nov 20, 2007 6:11 am 記事の件名: Brazil |
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Dear Mr. Lightningwizard! How are you?
I'm so glad you to be working hard for capturing sprites.
I'm now staying at Sao Paulo, Brazil from November 17. It's a early summer and starts of rainy season. Fortunately, I have encountered "Welcome Thunderstorm" this morning. Thunderstorms here in Brazil look much stronger and frequent from Japanese one.
I hope you to enjoy a picture of "Banana shop in street market" near the house I stay.
ITO
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Banana shop at the street market in Interlagos/Sao Paulo. |
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Lightningwizard
登録日: 2007.10.19 記事: 165
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日時: Sat Feb 23, 2008 7:39 am 記事の件名: |
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SonotaCo wrote: | Oh! very clear elves .
It seems energy of lightnings are very strong. Do you know the polarity of those lightnings?
We usually observed elves by strong positive polarity lightnings in winter upon the snow storms. |
We now have the lightning detection data for a number of nights with sprites and elves. Several elves were observed with negative polarity CGs (cloud-to-ground lightning), besides positive. The peak currents were very high. There was a negative one of more than 350 kA!! It would be interesting to investigate what causes this.
Oscar
_________________ Weather & Photography
http://www.lightningwizard.com
EuroSprite blog:
http://eurosprite.blogspot.com |
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Adacchy
登録日: 2005.01.27 記事: 46 所在地: 宮城県仙台市青葉区
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日時: Sat Feb 23, 2008 12:26 pm 記事の件名: Good to see you! |
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Hi, Oscar.
I'm Toru Adachi of Kyoto Univ. I moved here from Tohoku Univ last year to study
lightning effects in the lower ionosphere using MU radar.
I'm very surprised to see you here in this Web site. Looking forward to seeing
you again at some international conferences (maybe at Corsica meeting?).
If you have a chance, please also say hello to Carl-Fredrik. We worked together
to write up a sprite chemistry paper last year.
Toru
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Lightningwizard
登録日: 2007.10.19 記事: 165
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日時: Sun Feb 24, 2008 7:33 pm 記事の件名: |
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Hi Toru,
good to see you here! I think UFOCapture has become popular among sprite scientists as well, quite an accomplishment for SonotaCo!
yes, it is likely I go to Corsica! I just got my PhD last week and will continue sprite/lightning research in Spain as postdoc.... looking for an apartment with nice views to continue spritewatching from my home
Hope to see you and all our colleagues again this year!
Oscar
_________________ Weather & Photography
http://www.lightningwizard.com
EuroSprite blog:
http://eurosprite.blogspot.com |
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