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Post by norpag on Apr 6, 2011 21:59:34 GMT
There was a sharp 3% drop in the Oulu cosmic ray count cosmicrays.oulu.fi/#databasefrom March 29 -30 .Since then the down trend has been significantly steeper. Could anyone suggest any fairly sudden solar event which could account for these observations? |
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Post by lsvalgaard on Apr 7, 2011 1:23:52 GMT
There was a sharp 3% drop in the Oulu cosmic ray count cosmicrays.oulu.fi/#databasefrom March 29 -30 .Since then the down trend has been significantly steeper. Could anyone suggest any fairly sudden solar event which could account for these observations? High-speed solar wind stream making its presence felt. |
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Post by Bob k6tr on Apr 7, 2011 7:44:29 GMT
There was a sharp 3% drop in the Oulu cosmic ray count cosmicrays.oulu.fi/#databasefrom March 29 -30 .Since then the down trend has been significantly steeper. Could anyone suggest any fairly sudden solar event which could account for these observations? High-speed solar wind stream making its presence felt. Definite Solar Broom Effect. |
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loly
Level 3 Rank
Posts: 154
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Post by loly on Apr 7, 2011 16:34:23 GMT
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chuck
New Member
Posts: 10
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Post by chuck on Apr 8, 2011 15:54:11 GMT
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bradk
Level 3 Rank
Posts: 199
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Post by bradk on Apr 11, 2011 11:13:06 GMT
Tiny little sunspots - makes me look forward to the next L & P update.
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Post by lsvalgaard on Apr 11, 2011 14:50:51 GMT
Tiny little sunspots - makes me look forward to the next L & P update. Later today... see the L&P thread |
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Post by france on Apr 11, 2011 20:45:07 GMT
Thank you ! I exalted you and smote Loly  |
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chuck
New Member
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Post by chuck on Apr 11, 2011 21:26:33 GMT
Thanks lol.
Here's a few videos I made this morning, I haven't really checked back to see how the filament is doing later this afternoon. At the time made them, I wasn't sure what was going on with it.
It's hazy due to the spectrum used, but I was more interesting in the magnetics of what was going on at the surface.
And one of my favorite events, a small discharge traveling down the Grand Filament.
Here's one I made on April 6th, I thought was incredible.
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loly
Level 3 Rank
Posts: 154
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Post by loly on Apr 12, 2011 10:53:17 GMT
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chuck
New Member
Posts: 10
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Post by chuck on Apr 12, 2011 14:08:05 GMT
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solarstormlover54
Level 2 Rank
Hot and dry trend Since January. Looks to continue at least through the first half of May.
Posts: 54
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Post by solarstormlover54 on Apr 14, 2011 4:10:25 GMT
Sunspot number for today is 153. A new high for the cycle. Count is high probably due to dense clusters of tiny spots. Also a note, the last lull in activity did not see the solar flux go below 100. This new could be very high.
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Post by jcarels on Apr 14, 2011 20:23:30 GMT
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Post by jovian on Apr 15, 2011 11:39:58 GMT
On April 6 Jupiter was almost in perfect conjunction with the Sun. Cosmic rays data shows a sudden drop and minimum around 6-7 April. cosmicrays.oulu.fi/Is there a cause-effect relationship or just chance? Someone can imagine a mechanism for a drop in cosmic rays when Jupiter is 'shadowed' by the Sun? |
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Post by lsvalgaard on Apr 15, 2011 14:04:59 GMT
On April 6 Jupiter was almost in perfect conjunction with the Sun. Cosmic rays data shows a sudden drop and minimum around 6-7 April. cosmicrays.oulu.fi/Is there a cause-effect relationship or just chance? Someone can imagine a mechanism for a drop in cosmic rays when Jupiter is 'shadowed' by the Sun? This is just coincidence. Neither the cosmic rays, the Sun, nor Jupiter know when we are looking at Jupiter. A very tiny [unobservable] effect results from planets screening out cosmic rays, but too small to observe. There is, however an observable effect from the Moon doing that [it is a lot closer], but it is at the limit of detection. |
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