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Dormant Sun?

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9:53 am
June 15, 2011


Nosfer

Rotaredom

Moderator

posts 2957

Having been keeping an eye on and photographing sunspots for a while now, this article confirms what I've been seeing as far as solar activity in this current cycle.  And implications are for a weak Cycle 25 as well.  (We are currently in Cycle 24 which should peak in 2013)

http://www.space.com/11960-fad…..cycle.html

A minimum on the level of the Maunder is possible although it's a bit too early to go that far probably.  Nevertheless, there are implications for the effect on global mean temp so don't throw out your coats and gloves yet.

Solar Maximum is only about two years off and there have been times in the past (previous cycles) where large percentages of the disc were darkened with spots.  Here is my shot from this morning  showing spots 1234 and 1236, a rather small percentage I'd say!

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12:47 pm
June 15, 2011


Nosfer

Rotaredom

Moderator

posts 2957

Have been looking some more at the predictions for Cycle 24 and the numbers to me look like they are on par with those seen during the Dalton Minimum of the late 1700s into the early part of the 1800s.

This Minimum coincided with the eruption of Tambora in 1815 causing the subsequent year to be known as the year without a summer.  While the eruption of Tambora certainly had an effect on the earth's temperature, the decreased sunspot activity likely had more of an impact.

The levels in Cycles 22 and 23 look very analagous to those during Cycles 3 and 4 which preceded the Dalton Minimum Cycles 5 and 6.  With 25 looking to be a "failure to start" 24 and 25 at the least could be interesting times.

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9:20 am
June 16, 2011


Nosfer

Rotaredom

Moderator

posts 2957

And Mann (who else) rebuts the possibility of cooling:

http://www.wired.com/wiredscie…..m-climate/

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9:50 am
June 16, 2011


Learjet

Australia

Lead Investigator

posts 1122

Yep, cycle 24 is a bit of a fizzer, at least as far as solar activity and 6 metre band VHF radio activity goes.

I remember a couple of cycles ago how huge and numerous the Sunspots were. There's hardly any now.

OD'd on EMF

5:31 pm
July 29, 2011


Nosfer

Rotaredom

Moderator

posts 2957

This afternoon's sun.  This is the most activity I've seen in a LONG time.

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7:55 pm
July 29, 2011


Learjet

Australia

Lead Investigator

posts 1122

It's about time. Lots of flares lately too. Which means lots of ghost pixels from solar gamma ray bursts on camera. Wink

OD'd on EMF

9:03 am
July 30, 2011


blinddog

Special Agent Zombie Elimination Agency

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posts 857

Post edited 9:07 am – July 30, 2011 by blinddog


20 meters is open today. N.C. USA (em95ne) to Bogota, Colombia @ 50 watts using a vertical.

Double tap to the head. Don't become Undead.

3:33 pm
July 30, 2011


Nosfer

Rotaredom

Moderator

posts 2957

Post edited 7:43 pm – July 30, 2011 by Nosfer


blinddog said:

20 meters is open today. N.C. USA (em95ne) to Bogota, Colombia @ 50 watts using a vertical.


 

1261 put out a short but strong M9 early this morning.

Edited to add details:

Space Weather Message Code: SUMXM5

Serial Number: 77

Issue Time: 2011 Jul 30 0255 UTC

SUMMARY: X-ray Event exceeded M5

Begin Time: 2011 Jul 30 0204 UTC

Maximum Time: 2011 Jul 30 0209 UTC

End Time: 2011 Jul 30 0212 UTC

X-ray Class: M9.3

Location: N19W00

NOAA Scale: R2 – Moderate

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8:26 pm
July 30, 2011


blinddog

Special Agent Zombie Elimination Agency

Moderator

posts 857

Post edited 8:31 pm – July 30, 2011 by blinddog


Solar flux: 113

A-Index: 11

Sun Spots: 88

Geomag field: unsettled

Signal Noise S2-S3

Odd contacts on 17 meters, Caicos and Mexico @ 1520 local, just a few minutes later contacts with Norway and Germany. The latter I can understand because of grayline.

The former is odd for that time of day while running QRP.

Cycle 24 is definitely going to be different. 

 

Edit: Just to return to what Learjet had to say about vhf.

        It's dead everywhere, not just downunder.

Double tap to the head. Don't become Undead.

12:17 pm
August 9, 2011


Nosfer

Rotaredom

Moderator

posts 2957

And today an X6.9 flare.  This came from 1263 but because of that spots location on the sun, most of this was not earth-directed:

 

Space Weather Message Code: SUMX01

Serial Number: 70

Issue Time: 2011 Aug 09 0812 UTC

SUMMARY: X-ray Event exceeded X1

Begin Time: 2011 Aug 09 0748 UTC

Maximum Time: 2011 Aug 09 0805 UTC

End Time: 2011 Aug 09 0808 UTC

X-ray Class: X6.9

Optical Class: 2b

Location: N17W69

NOAA Scale: R3 – Strong

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8:24 pm
August 9, 2011


Learjet

Australia

Lead Investigator

posts 1122

What's optical class? I assume this means it visibly got brighter for 20 minutes?

OD'd on EMF

8:46 pm
August 9, 2011


Nosfer

Rotaredom

Moderator

posts 2957

It's a measure of the size and brightness of the flare.  The "2" indicates an area on the sun between 5.2 and 12.4 square degrees while the "b" indicates that it was "brilliant" as opposed to "f" or "n" ("faint" or "normal" respectively)

S: < 2 square degrees

1: 2.1 to 5.1 square degrees

2: 5.2 to 12.4 square degrees

3: 12.5 to 24.7 square degrees

4: > 24.8 square degrees

 

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4:13 am
August 10, 2011


Learjet

Australia

Lead Investigator

posts 1122

Thanks.

I'm monitoring VLF in case something odd pops up like whistlers or other geomagnetic noises. Or even ghosts. Wink

OD'd on EMF

4:35 am
August 10, 2011


Learjet

Australia

Lead Investigator

posts 1122

LOL no sooner had I typed that when this pops up.

http://img30.imageshack.us/img…..101917.jpg

It looks power grid related and lasted for a few seconds. I reckon it would be strong enough to spike some EMF meters that can read a bit higher than base grid frequencies like the Gauss Master can. Now if I was a ghost hunter, this would obviously be a ghost. Surprised

Sorry, OT again I know. Still, could have been worse. I could have mentioned it was an EMF Kraken. Cool

OD'd on EMF

9:25 am
August 10, 2011


Nosfer

Rotaredom

Moderator

posts 2957

Is your UTC offset +10?  Would make your trace at about Event+25hrs?  Would be a bit quick although we've had a few high M-class ones in the last few days, too.  I believe the burst in 1859 made it here in about 18 hours, though, but a lot of that was due to the "air being cleared" before it already by a previous burst.  I still wouldn't rule out ghosts or even ghost-Krakens Smile  (Or is that, in this case, a Kraklin?)

 

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4:23 am
August 11, 2011


Learjet

Australia

Lead Investigator

posts 1122

Post edited 4:28 am – August 11, 2011 by Learjet


Yes I'm UT +10.

Still monitoring VLF. I wonder if the Trifield Natural would pick anything up as well? Might turn it on too.

Edit, the Trifield is quite active set on the magnetic setting this evening. I've never heard it like this before.

OD'd on EMF

10:28 am
August 11, 2011


Nosfer

Rotaredom

Moderator

posts 2957

Interesting, the geomag indices don't look very unusual.  At least nothing out of the ordinary over even the last 30 days.  But if you got it with the Trifield it has to be paranormal, doesn't it? Laugh

I have to wonder how many groups out there waving meters around pay ANY attention to space weather?  The X-class on the 9th was the largest since the end of 2006.

1263 has rotated to the extreme edge of the sun and is fast disappearing.  There are two new regions of spots that have popped up but they are pretty benign at the moment and things are tailing off pretty quick.  10.7cm flux is under the 90-day average and the monthly average is well under the low range of the predictions (and has been continually that way for May thru present although Mar and Apr were above the high range of the forecast.

Below is a graph I've put together comparing cycles 23 and 24 to 4 and 5 (5 was near the start of the Dalton Minimum at the end of the 18th century)  I've aligned the graph on the minima between 23 and 24 and between 4 and 5 (so the peaks of 23 and 4 will not be aligned but those of 24 and 5 are)  Data are current through this morning so the August point is based upon 1/3 of the month.

 

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8:23 pm
August 11, 2011


Learjet

Australia

Lead Investigator

posts 1122

Nosfer said:

But if you got it with the Trifield it has to be paranormal, doesn't it? Laugh


 

That's right, it's a ghost meter after all.

I don't know what sets this thing off half the time, and the other half I have no idea! There were quite a few lightning sferics last night but they were distant. Many of them were "tweeks" which sound a bit like a stone hitting a metal pole. Maybe it was detecting them. Or not.

OD'd on EMF

10:56 pm
September 7, 2011


Learjet

Australia

Lead Investigator

posts 1122

Just had two X class flares. Things are hotting up!

OD'd on EMF

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