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  #271 (permalink)  
Old 13-October-2009, 04:24 AM
William William is offline
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William, I hope you understand I did not mean to minimize the importance of the solar influence on climate. I was attempting to answer as succinctly as possible within my own limited understanding.
There is not agreement on how the sun is currently changing, how it will change, how the solar magnetic cycle will restart, or how the solar magnetic cycle changes will affect the planet. Jasper Kirkby's paper is only a review of the observations and one possible explanation for the observations.

This will be the first major solar event humans have observed in record history. We have not experienced the full range of the solar cycle.

We will fortunately or unfortunately (depending on what happens) have front row seats to this event, which will take a number of years to unfold.
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Old 13-October-2009, 06:22 AM
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Thank you William. I am fascinated with these moments in time. Certainly there have been other moments, but this is ours and I am enjoying all of the data and observational understanding. It is all very interesting.

As a younger man, I learned the importance of weather and its basics. Myself and my men's lives depended on understanding weather and geography. Now it is my family and my community's life I concern myself with. After living thru hurricane Rita and Ike, I am fully focused on everything natural and man made.

Thank you for provoking a deeper thought into the possibilities William. Tusenfem, I look forward to your work on the MRx data if I recall correctly. If this is not the proper acronym, I do apologize.

Yogi Berra says its hard to make predictions, especially about the future.

Though many may argue, this winter could easily be much colder and wetter. A crossroads in climate-time if you will, where the recorded increase in airborne H2O combine with a hasty decrease in temperature, and offer us a wet and cold experience this winter.

Time will tell............
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Old 13-October-2009, 02:39 PM
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William and flynjack1, please refrain from putting climate stuff in this thread, as I have already mentioned in post #242. There is a climate thread elsewhere, where you can discuss this.
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Old 13-October-2009, 04:12 PM
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Tusenfem, Correction accepted and acknowledged. I was merely attempting answer the question as to the importance of understanding the solar processes we have discussed in this thread.
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Old 14-October-2009, 01:30 PM
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An update from spaceweather.com:

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DEEP QUIET: Today, the sun is entering its 13th consecutive day without sunspots. Just a few years ago, such a stretch of blank suns would have been unthinkable. Now it's routine. So far this year, the sun has been spotless 79% of the time, topping the 73% mark recorded in 2008. Long after many forecasters thought solar minimum would be finished, the quiet is not only continuing, but actually deepening.
Deepening.

I've been following the sunspot count at this site for years. Three times now, since mid-2008, it's been cautiously announced that Cycle #24 seems to have started in good earnest. And then it fizzles again. I thought the last rash of sunspot activity (in June) probably was THE herald of an upswing in normal 'spot activity. Apparently not.
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Old 15-October-2009, 03:38 AM
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An update from spaceweather.com:



Deepening.

I've been following the sunspot count at this site for years. Three times now, since mid-2008, it's been cautiously announced that Cycle #24 seems to have started in good earnest. And then it fizzles again. I thought the last rash of sunspot activity (in June) probably was THE herald of an upswing in normal 'spot activity. Apparently not.
I thought the same thing last November, but now I keep looking at the old records for something that matches our current quiet. It's there but which one do you pick 1913, we have surpassed its record now....Dalton Minimum, Or Maunder Minimum or something new altogether. It really is exciting, though in a very slow kind of way.
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Old 15-October-2009, 03:45 AM
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it's been cautiously announced that Cycle #24 seems to have started in good earnest. And then it fizzles again. I thought the last rash of sunspot activity (in June) probably was THE herald of an upswing in normal 'spot activity. Apparently not.
If you look at the polarity and location of the few sunspots that have appeared, they ARE from cycle #24, there is absolutely no doubt about that. The real novelty here is that cycle #24 is very scarce on spots, but they're there.
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Old 15-October-2009, 02:55 PM
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Quote:
Maunder Minimum
IIRC, last year, in the summer, it was mentioned on this thread that if the Sun continued on its course of a deep minimum for another year, we may want to consider it the beginning of a Maunder Minimum type cycle.

I don't recall whom made the statement but few argued this point, IIRC. Here we are, nearly 1.5 years later. Although predicting the future is likened to a Yogi Berra moment, it certainly is interesting.

The north east portion of our continent would argue that the 2009 summer was a pleasant surprise and on the cooler side of what is normal. It certainly wasn't expected by many. I would argue that my observations within my region of the continent were abnormally pleasant as well.

I love your wording flynjack, "It really is exciting, though in a very slow kind of way."

I am relieved that my family and community doesn't have to recover from another hurricane. We have rebuilt twice in three years. I could stand a little cooler weather.

I have chopped more firewood this summer, just in case. Smores anyone?

Time will tell.........
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Old 16-October-2009, 04:06 AM
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The scientific community has been relatively quiet on predictions since last year, due to the continued stubbornness of the sun to cooperate with their speculations. I find it refreshing that rather than continue to make predictions they are now focused on observing and gathering information. If the earths magnetic environment is difficult to understand with our many scientific satellites in orbit about it and ability to poke and prod the ground about us, then imagine the difficulty in understanding the processes taking place 93 million miles away? Don't get me wrong I understand the need to attempt to make predictions in order to validate theories, but just because one predicts an outcome correctly does not necessarily mean they understand the underlying mechanisms that occurred to bring about the results. Thats where the test of time and repetition comes in.
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Old 20-October-2009, 03:59 AM
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Solar cycle 24 update.

http://daltonsminima.wordpress.com/d...le-in-diretta/

Activate translator, copy link into translator and then set translator: Italian to English. (Or other language if you prefer.)

http://translate.google.com/translate_t#

The link is update daily. No new papers concerning the observations.
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Old 20-October-2009, 04:35 AM
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By the way, though, the density of the solar wind over the last couple of days seems to be really low. I just looked and it was 0.1. Maybe somebody is turning it off. But more seriously, is there somewhere I can to find a historical chart of the solar wind, like they have for sunspots? Needless to say, we can't go back 200 years, but it would be cool to see a chart for say the last full solar cycle.
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Old 20-October-2009, 08:07 AM
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By the way, though, the density of the solar wind over the last couple of days seems to be really low. I just looked and it was 0.1. Maybe somebody is turning it off. But more seriously, is there somewhere I can to find a historical chart of the solar wind, like they have for sunspots? Needless to say, we can't go back 200 years, but it would be cool to see a chart for say the last full solar cycle.
You can find lots and lots of data on CDAWeb, that's where I get my solar wind input for my research. You probably want to look at Wind and ACE and possibly ICE (which would be the renamed ISEE3).
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Old 24-October-2009, 02:21 PM
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An update from spaceweather.com:
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NEW SUNSPOT: A new sunspot numbered 1029 is emerging in the sun's northern hemisphere. Magnetic maps of the spot identify it as a member of new Solar Cycle 24. Readers with solar telescopes, now is the time to see sunspot genesis in action.
I was going to buy a Coronado solar telescope a couple of years ago, but am glad I didn't at the time considering how long and drawn out this minimum has been.

The current sunspot count is 30. That's a jump up from 0 yesterday. Thursday's count was 11, if I recall correctly.
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Old 24-October-2009, 06:24 PM
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That's quite a complex sunspot group that's appeared. Also, looking at SOHO images, especially the magnetogram, there appear to be quite a few active regions. I wonder if activity is finally on the up?
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Old 25-October-2009, 07:55 PM
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That's quite a complex sunspot group that's appeared. Also, looking at SOHO images, especially the magnetogram, there appear to be quite a few active regions. I wonder if activity is finally on the up?
It seems that activity is on the up. That being said, the question is where will it peak and will the flux continue to decrease towards 2015 as Penn and Livingstons work suggest. This cycle has been full of surprises so far so I look forward to more to come.
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Old 26-October-2009, 11:18 AM
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I don't think we can make any predictions for what kind of peak we will get at the next maximum anymore, the very deep solar minimum has taken many by surprise and wasn't predicted at all.
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Old 27-October-2009, 05:05 AM
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I don't think we can make any predictions for what kind of peak we will get at the next maximum anymore, the very deep solar minimum has taken many by surprise and wasn't predicted at all.
If I remember correctly, the consensus prediction three years ago was that cycle 24 would be an extremely active one, with a peak activity in early 2012, with daily averages of 200 Spots.

That prediction was based on several cycle studies of the solar conveyor - obviously there was a missing variable or two from that study....
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Old 31-October-2009, 03:37 PM
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The solar magnetic ropes appear to continue to weaken in magnetic field intensity. The solar magnetic rope requires a magnetic field intensity of around 1500 gauss to survive the trip from the tachocline (interface of the radiative zone and convection zone) up through the convection zone to the surface of the sun. A consequence of the weakened magnetic field intensity is the solar magnetic rope arrives in pieces at the surface of the zone. (Hence the solar flares.)

http://sohodata.nascom.nasa.gov/cgi-...type=Continuum

http://sohodata.nascom.nasa.gov/cgi-...pe=Magnetogram

http://www.earthfiles.com/news.php?I...tegory=Science

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Beginning six months ago, ACE satellite data showed a rise in cosmic rays reaching Earth from the Milky Way galaxy. By now, cosmic ray intensity has increased 19% because our sun is so quiet that its reduced magnetic field isn’t deflecting cosmic rays like it has the past few decades. If our sun remains quiet, there could be a 30% increase in cosmic rays reaching Earth in the next year or so – an intensity not seen since 1960. Increased cosmic rays can damage electronic systems and even DNA in living creatures.

“In the 50 years or so we’ve been making the (cosmic ray) measurements – this is by far the highest level of galactic cosmic rays that we’re seeing at Earth and we know exactly what is causing it. It’s the sun’s weakened magnetic fields and weakened solar winds that are all related to this Solar Cycle 24 minimum.

We don’t have records prior to 1874 that give us details about the sun. Compared to the past 130 years, our sun now is unprecedented as far as how slow this Solar Cycle 24 is taking off - or not taking off!”

David Hathaway, NASA Heliospheric Team Leader
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Old 31-October-2009, 05:15 PM
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A consequence of the weakened magnetic field intensity is the solar magnetic rope arrives in pieces at the surface of the zone. (Hence the solar flares.)
My bold
This does not make any sense at all.
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Old 31-October-2009, 08:50 PM
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My bold
This does not make any sense at all.
If you look at this series of pictures of the last sun spot showing the evolution of its magnetic field, it arrive at the surface of the sun as magnetically complex. A mixture of opposite polarity field lines. If I understand the mechanism a solar flare is caused by a reconnection of magnetic field sets of opposite polarity.

In the case of solar cycle 24 the complex magnetic field would be created as the magnetic ropes are weak and turbulence in the convection zone is breaking apart the magnetic ropes as they rise through the convection zone. The resultant is many small flares.

The large flares are also caused during the highest part of the cycle when separate pairs of magnetic ropes rise up through the convection zone and interact on the surface of the sun. There are more flares when there are a greater number of magnetic ropes rising up through the convection zone.

The most powerful solar flares are caused when the rope production mechanism at the tachocline creates a strong asymmetrical set of ropes that moves up through the convection zone as a set.

http://sohodata.nascom.nasa.gov/cgi-...pe=Magnetogram

This paper discusses large solar flares and the solar flare mechanism in general.


http://www.iop.org/EJ/article/1538-4...d-1cd1c391a523

Quote:
The Unpredictability of the most energetic solar events

The energy appears to arrive in the corona as the result of buoyant motions of current-carrying flux systems (e.g., Schrijver 2007) rather than by the twisting of the coronal field by photospheric surface flows, as often assumed in numerical simulations. The patterns therefore reflect the persistence of the flux-emergence process, which is known to display coherence in both space and time (e.g., Knaack & Stenflo 2005), and ultimately must be attributed to the solar dynamo and other processes in the solar interior (e.g., Ruzmaikin 1998).

Magnetic flux emergence leads directly to flare activity (e.g., Schrijver 2007), and the occurrence of multiple major flares in a given active region therefore points to a persistence in the pattern of flux emergence. This persistence seems to be required to explain the occurrence of homologous flares, since we believe that extracting the energy from stressed coronal magnetic fields requires their irreversible restructuring, for example, by magnetic reconnection. Nitta & Hudson (2001) show that this persistence can result in homologous CMEs in association with impulsive X-class flares. For reasons currently unknown, the strongest flux emergence, leading to the most energetic solar events, does not follow the relatively smooth pattern of flux emergence that defines the solar cycle and the occurrence patterns of less energetic events.

Observations over the past two solar cycles show a highly irregular pattern of occurrence for major solar flares, g-ray events, and solar energetic particle (SEP) fluences. Such phenomena do not appear to follow the direct indices of solar magnetic activity, such as the sunspot number. I show that this results from the non-Poisson occurrence for the most energetic events. This Letter also points out a particularly striking example of this irregularity in a comparison between the declining phases of the recent two solar cycles (1993–1995 and 2004– 2006, respectively) and traces it through the radiated energies of the flares, the associated SEP fluences, and the sunspot areas. These factors suggest that processes in the solar interior involved with the supply of magnetic flux up to the surface of the Sun have strong correlations in space and time, leading to a complex occurrence pattern that is presently unpredictable on timescales longer than active region lifetimes (weeks) and not correlated well with the solar cycle itself.

We can also note the remarkable eruption of three distinct active regions in 2003 October, each producing X-class flares, and with distinct active regions in both hemispheres. Such a sudden and widespread surge of activity is certainly remarkable, even though noted here only a posteriori.
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Old 01-November-2009, 02:17 AM
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The solar magnetic ropes appear to continue to weaken in magnetic field intensity. The solar magnetic rope requires a magnetic field intensity of around 1500 gauss to survive the trip from the tachocline (interface of the radiative zone and convection zone) up through the convection zone to the surface of the sun. A consequence of the weakened magnetic field intensity is the solar magnetic rope arrives in pieces at the surface of the zone. (Hence the solar flares.)

http://sohodata.nascom.nasa.gov/cgi-...type=Continuum

http://sohodata.nascom.nasa.gov/cgi-...pe=Magnetogram

http://www.earthfiles.com/news.php?I...tegory=Science
I see what you mean looking at the MDI Continuum and Magnetogram of 2009/10/31.

This quote from the article I found most disturbing because the thought had already occurred to me prior to reading the article:

Quote:
Our sun is so quiet that solar physicists from around the world gathered in September to discuss whether we are entering a period similar to the Maunder Minimum of 1645 to 1715, when for 70 years the sun was spotless and there was a mini-ice age.
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Old 01-November-2009, 04:38 AM
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http://www.earthfiles.com/news.php?I...tegory=Science


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The title of the meeting was “Understanding the Peculiar Solar Minimum” – meaning this one! (laughs) (My comment Ha! Ha! Good joke.) The interesting thing is that at one point during that meeting, we took a vote amongst ourselves about how many thought that this Solar Cycle 24 is so peculiar that it would have a name attached to it, like Maunder Minimum or Dalton Minimum. It was a small minority that thought that it was that peculiar.

The vast majority felt that this is a significant minimum. It’s smaller than anything we have seen in the 50 years of the Space Age. But it does look like you can go back 100 years or so and find other similar minima.
Quote:
These were some of the world’s experts in these areas that concluded – yes, this is a deep solar minimum, but at this point, we’re not quite ready to say this is so weird that we need to give a name to it – that it’s something we haven’t seen in 200 years.
The Maunder minimum was preceded by a rump cycle. If there is no rump cycle, then this is not a Maunder minimum. My concern is the cycle restart.

Let's wait and watch. If the cycle does not restart there will be more papers and discussions.

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Old 01-November-2009, 04:55 AM
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Let's just hope it's nothing more than just a slightly unusual delay in the cycle. I'll keep an eye out for new papers and articles on the subject.

Besides, I have a perfectly good white light solar filter that's been collecting dust these last few years that is just dying to be used again! LOL
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Old 01-November-2009, 07:35 PM
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If you look at this series of pictures of the last sun spot showing the evolution of its magnetic field, it arrive at the surface of the sun as magnetically complex. A mixture of opposite polarity field lines. If I understand the mechanism a solar flare is caused by a reconnection of magnetic field sets of opposite polarity.
This is just word salat. "A mixture of opposite polarity field lines"? This may sound profound but does not mean a thing. Sure there are "north poles" and "south poles" on the surface of the sun, but the magnetic field lines are loops going from one to the other. Indeed between the loops reconnection can occur, creating a bigger loop. A solar flare, however, is the "explosion" of a large loop, mainly because of shearing motion of the footpoints of said loop, causing instabilities. One model of this process is discussed in detail by Aly and an application of it in an interesting place can be found in Volwerk, van Oss and Kuijpers.

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In the case of solar cycle 24 the complex magnetic field would be created as the magnetic ropes are weak and turbulence in the convection zone is breaking apart the magnetic ropes as they rise through the convection zone. The resultant is many small flares.

The large flares are also caused during the highest part of the cycle when separate pairs of magnetic ropes rise up through the convection zone and interact on the surface of the sun. There are more flares when there are a greater number of magnetic ropes rising up through the convection zone.

The most powerful solar flares are caused when the rope production mechanism at the tachocline creates a strong asymmetrical set of ropes that moves up through the convection zone as a set.
I think you should study the literature a little better, because I have the impression that you don't really know how things work in the sun.

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This paper discusses large solar flares and the solar flare mechanism in general.


http://www.iop.org/EJ/article/1538-4...d-1cd1c391a523
You should study the Schrijver papers, the paper you quote does not explain the mechanism, but just gives a bunch of generalities, and given your description of solar flares above, you seem to have made up your own idea from these generalities.
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Old 02-November-2009, 07:34 PM
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This is just word salat. "A mixture of opposite polarity field lines"? .
tusenfem,
What I have said is in agreement with observations. The paper I have quoted discusses sunspot and solar flare observations. I do not see how a theoretical paper on flares in the vincinity of a black hole or theoretical fields in infinite space is related.

The sunspot is a set of power magnetic fields (Compare the field strength of the sunspot to solar large scale magnetic field. The sunspot is orders of magnetitude stronger.) that moves up through the convection zone to the surface of the sun.

The point is that symmetry of the set magnetic field ropes which will form the sunspot affects wether a flare is produced. That comment has nothing to do with a salad. I do not understand your analogy. My comment is in agreement with the observations that are descibed in the paper that I quoted.

There is some connection between solar flares and CME, however, the relationship is not known.

When on the surface of the sun the sunspot field lines form the solar large scale magnetic field.

Quote:
The Unpredictability of the most energetic solar events

The energy appears to arrive in the corona as the result of buoyant motions of current-carrying flux systems (e.g., Schrijver 2007) rather than by the twisting of the coronal field by photospheric surface flows, as often assumed in numerical simulations. The patterns therefore reflect the persistence of the flux-emergence process, which is known to display coherence in both space and time (e.g., Knaack & Stenflo 2005), and ultimately must be attributed to the solar dynamo and other processes in the solar interior (e.g., Ruzmaikin 1998).

Magnetic flux emergence leads directly to flare activity (e.g., Schrijver 2007), and the occurrence of multiple major flares in a given active region therefore points to a persistence in the pattern of flux emergence. This persistence seems to be required to explain the occurrence of homologous flares, since we believe that extracting the energy from stressed coronal magnetic fields requires their irreversible restructuring, for example, by magnetic reconnection. Nitta & Hudson (2001) show that this persistence can result in homologous CMEs in association with impulsive X-class flares. For reasons currently unknown, the strongest flux emergence, leading to the most energetic solar events, does not follow the relatively smooth pattern of flux emergence that defines the solar cycle and the occurrence patterns of less energetic events.

Observations over the past two solar cycles show a highly irregular pattern of occurrence for major solar flares, g-ray events, and solar energetic particle (SEP) fluences. Such phenomena do not appear to follow the direct indices of solar magnetic activity, such as the sunspot number. I show that this results from the non-Poisson occurrence for the most energetic events. This Letter also points out a particularly striking example of this irregularity in a comparison between the declining phases of the recent two solar cycles (1993–1995 and 2004– 2006, respectively) and traces it through the radiated energies of the flares, the associated SEP fluences, and the sunspot areas. These factors suggest that processes in the solar interior involved with the supply of magnetic flux up to the surface of the Sun have strong correlations in space and time, leading to a complex occurrence pattern that is presently unpredictable on timescales longer than active region lifetimes (weeks) and not correlated well with the solar cycle itself.

We can also note the remarkable eruption of three distinct active regions in 2003 October, each producing X-class flares, and with distinct active regions in both hemispheres. Such a sudden and widespread surge of activity is certainly remarkable, even though noted here only a posteriori.
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Old 02-November-2009, 08:31 PM
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Old 03-November-2009, 03:17 AM
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Please attribute your quotes so their context can be evaluated.
Hi Henrik,

This is link to the paper that notes the source of the sunspot complexity is at the formation of the sunspot rope which is theorized to be at the tachocline (interface of the radiative zone and convection zone.)


Livingston and Penn have found that the intensity of the late cycle 23 and new cycle 24 sunspots is linearly dropping. It appears that the tachocline has been disturbed by the motion of sun about its barycenter. This solar cycle interruption was predicted by three different methods including analysis of past solar cycle minimums and the sun's barycentric motion.

As noted in my quote below the sunspot ropes require a magnetic intensity of around 10,000 gauss to survive trip through the solar convection zone.


http://www.iop.org/EJ/article/1538-4...d-1cd1c391a523

http://www.amazon.com/Journey-Center.../dp/0691057818


Journey from the Center of the Sun by Jack Zirker

page 176. Good book, I would highly recommend it.

Quote:
Zirin (my comment Harold Zirin, Big Bear Lake Solar observatory) has picked up his own flare indicators. He publishes his estimates as “Bear Alerts” and his prediction have a good record for reliability.

…. The area of active region, … is not an infallible indicator. A large region, with several big sunspots and strong magnetic fields, can be idle for days. What matters is the complexity of the field, how closely interwoven the positive and negative polarities are, and how fast the magnetic field is changing.

Ziren and his colleague M.A. Liggett found that some of the most energic flares, … occur in regions that contain a so called delta sunspot. It is really two sunspots of opposite polarities surrounded by a common field. Most flaring regions don’t contain delta sunspots, however, and one must look for other clues.

Mona Hagyard and her colleagues at … have (found) If the field lines cross directly between areas of opposite photosphere magnetic polarity, the active region unlikely to flare. But if the field lines are strongly sheared, so they lie along the boundary between opposite polarities, then the region is more likely to flare. They quantified the amount of shear and learned that if a certain limit is exceeded, a flare may occur but not always.

…. David Rust, as solar physicist a John Hopkins University discovered another clue to when a flare may occur. Small sunspots continue to pop up as an active region grows. Rust notice that if a new spot emerges next to another spot that has the opposite magnetic polarity, their opposite directed fields may touch and light up a flare.
page 244

Quote:
Other problems with solar cycle models began to surface. They centered on those magnetic ropes that turn into sunspots. As we know, the field strength in a large spot can reach 3000 gauss. In order for the field to build up to this level the sun would need sufficient time to wrap a weak polar field many times around the equator. But Gene Parker showed in 1975 that buoyant rope would rise through the convection zone in much less than eleven years and would reach the surface much weaker than 3000 gauss....

Even worse, a rope with a field strength of only 3000 gauss would be chewed to bits by the vigorous convection cells it passes on its way to the surface. A field strength of at least 10,000 gauss would be need to survive the trip...

But that raises yet another problem. Such strong fields would be stiff. They would resist being twisted by a cyclonic convection...)
The next section explains the different theories and mechanisms concerning the creation of the magnetic ropes at the solar tachocline.
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Old 03-November-2009, 08:37 AM
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tusenfem,
What I have said is in agreement with observations. The paper I have quoted discusses sunspot and solar flare observations. I do not see how a theoretical paper on flares in the vincinity of a black hole or theoretical fields in infinite space is related.
That is why the main paper was that of Aly and not mine at a black hole, that was just an application as I said.

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The sunspot is a set of power magnetic fields (Compare the field strength of the sunspot to solar large scale magnetic field. The sunspot is orders of magnetitude stronger.) that moves up through the convection zone to the surface of the sun.
"a set of power magnetic fields"? What is THAT supposed to mean?

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The point is that symmetry of the set magnetic field ropes which will form the sunspot affects wether a flare is produced. That comment has nothing to do with a salad. I do not understand your analogy. My comment is in agreement with the observations that are descibed in the paper that I quoted.
"symmetry of the set magnetic field ropes"? What is THAT supposed to mean? You are really good at writing word salad.

A flare does is NOT created by various loops connecting through reconnection. A flare is the "explosion" of a magnetic loop, read the Aly paper to get the details. And yes, emergence of magnetic fields through the surface of the sun can lead immediately to flare activity but need not. There are movies galore that show initially stable magnetic loops on the sun that get sheared by foot point motion and then finally flare.


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There is some connection between solar flares and CME, however, the relationship is not known.
Nonsense


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Originally Posted by William View Post
When on the surface of the sun the sunspot field lines form the solar large scale magnetic field.
And apparently you found this part not important for some reason.

Quote:
Originally Posted by Hudson
... since we believe that extracting the energy from stressed coronal magnetic fields requires their irreversible restructuring, for example, by magnetic reconnection. Nitta & Hudson (2001) show that this persistence can result in homologous CMEs in association with impulsive X-class flares.
Which basically is the mainstream view of solar flares. If Hudson found that the largest flares do not follow the smooth development of normal flares, then so be it. However, it still does not mean that your ideas about "mixtures of polarity" and whatever other word salad you wrote down should be accepted as being the truth. That is only in your mind.
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Old 03-November-2009, 07:26 PM
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That is why the main paper was that of Aly and not mine at a black hole, that was just an application as I said.

"a set of power magnetic fields"? What is THAT supposed to mean?

"symmetry of the set magnetic field ropes"? What is THAT supposed to mean? You are really good at writing word salad.
See my above comment for observations concerning solar flare occurrence and magnetic field complexity. The word I meant to use was "magnetic field complexity". I think we are in agreement.

I will respond later concerning CME and solar flares.

Are we argreement that the observations (Livingston and Penn's finding of a linear reduction in the sunspot magnetic field intensity.) confirm the sunspot ropes are formed at the tachocline?
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Old 03-November-2009, 07:31 PM
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The next few solar observational months will be interesting, in terms of what to expect for cycle 24. I have been researching CME and will start a thread in science.

http://solarscience.auditblogs.com/2...way-mea-culpa/

Quote:
There were indications back then. I am writing a paper – it’s on my computer as we speak – basically saying that I made a big mistake – myself and Bob Wilson – when we wrote a paper in 2006, suggesting Solar Cycle 24 was going to be a huge cycle based on conditions at that time. The problem we had with our prediction was that it was based on a method that assumes that we’re near sunspot cycle minimum….

…But there also were people back at that time saying otherwise. A group of colleagues led by Leif Svalgaard, Ph.D., were looking at the sun’s polar fields and saying even at that point, the sun’s polar fields were significantly weaker than they had been before and those scientists back then predicted it was going to be a small cycle.

How Small Will Solar Cycle 24 Be?
…I’ve come around to that view now. I think there is little doubt in my mind now that we’re in for a small cycle. The big question now is how small? I think most of us are predicting small cycles. I think even the techniques I’m using now are suggesting HALF the size of the last three or four solar cycles, but my fear is that even that might be too big just from the fact that it’s taken so long for this Solar Cycle 24 to really get off the ground and start producing sunspots.

I have no doubt at this point that it’s going to be a little cycle. My current prediction is that it’s going to be about half of what we’ve seen in the last four solar cycles or so. But in my gut, I feel it’s going to be smaller than that! It’s just so slow in taking off and the indicators that we see – both the polar fields and the geomagnetic indicators are lower than anything we’ve seen before.
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