NW7US comments: May 29 2009 Solar Cycle 24 Prediction

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NW7US comments: May 29 2009 Solar Cycle 24 Prediction

Postby NW7US » Fri May 29, 2009 2:21 pm

How much credibility should we grant to the panel of solar researchers and scientists that again releases a speculative prediction of the new Solar Cycle (the 24th since accurate solar cycle records have been kept)? Panel chairman Doug Biesecker of the NOAA Space Weather Prediction Center states:
If our prediction is correct, Solar Cycle 24 will have a peak sunspot number of 90, the lowest of any cycle since 1928 when Solar Cycle 16 peaked at 78...

NASA's lead representative on the panel, Dean Pesnell of the Goddard Space Flight Center, adds:
It turns out that none of our models were totally correct... The sun is behaving in an unexpected and very interesting way.

What I really find entertaining is the self-importance prevalent in the solar science community, by both professional and some amateur participants. Pesnell states the obvious:
In our professional careers, we've never seen anything quite like it...

Yeah, how many solar cycles can one experience during their professional life? The average cycle lasts between 11 and 12 years in length. But the Sun is millions of years old. In my view, it is pretty arrogant to postulate that mankind has any real understanding and handle on what the Sun might do next. Pesnell, again:
Go ahead and mark your calendar for May 2013, but use a pencil.

If none of the models are totally correct, how are they making this current prediction with such dismal expectations? I'm not holding my breath in favor of supporting any of the predictions, at this point.

No one can postulate with any credibility just how intense the new cycle will be, because there's no direct correlation between this solar minimum and any regular pattern of past minimums. In 2008 and 2009, the sun was more quiet than any period during the 'Space Age' (again, a very short time of reference in relation to the millions of years of solar history). During the last two years, we've seen low sunspot counts, weak solar wind, low solar irradiance, and a period without a significant solar flare.

What does all of this mean in the real world of amateur communications? With the slow yet sure increase in solar activity during recent months as seen with the emergence of more frequent small sunspots (many of which are new cycle spots) and 'proto-sunspots', there is hope that the sun is waking, at least. Other evidence that the sun is experiencing an increase in solar cycle activity is the 'zonal flows' (enormous currents of plasma on the sun's surface) that are gaining strength and slowly drifting toward the sun's equator. Tiny but significant increases in solar radio emissions are being observed. All these things are precursors of an awakening Solar Cycle 24.

Even this little of an increase in solar activity has brought some welcomed increase in excitement on the amateur radio bands. With continued very low geomagnetic activity, any slight increase in solar activity that strengthens the ionosphere translates to noticeable enhancements to radiowave propagation over many radio paths on the middle to low HF (high-frequency) bands.

The Panel expects another year of very quiet conditions. They expect the cycle to peak in 2013, which means a rapid rise in activity between 2010 and 2013. Whatever the final level of activity, one thing will likely happen: a rapid and chaotic rise in geomagnetic activity, at times at major storm levels, will occur. Enjoy the unique propagation opportunities currently presenting themselves during this quiet phase, because the game will change in the next few years, regardless of who's predictions hold true.

Prepare now for whatever the sun will do, by honing your radio skills, increasing the efficiency of your antenna system, and participate in the on-the-air opportunities to be a part of the solar cycle story. As the story unfolds, be an active player and record as best you can your activity, what the sun is doing. I keep a log of all the solar data, on a daily basis, and I record my contacts made, antenna and power used, modes, and other observations. This information might reveal new and interesting facts as we journey forward in this new solar cycle.
73, de NW7US (Tomas David Hood)
Contributing editor, Propagation Columns in:
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Re: NW7US comments: May 29 2009 Solar Cycle 24 Prediction

Postby wisconsin_cur » Fri Jan 15, 2010 10:52 pm

It is my understanding that we are on the verge of a data mine of epic proportions given our limited data at this time. One of the goals of the Kepler Mission is to
Determine the properties of those stars that harbor planetary systems.


I heard an interview with one researcher who was excited that, according to his information, Kepler was looking at a lot of G2 stars and would provide a wide stream of data across the age of stars like ours (since we will be looking at those that are like ours and younger and like ours but older) and add to our statistical data book. What information was a little unclear though he insinuated that it included sun spot data.

Take it as fourth hand information and as a promise rather than a fact but it would be great if they could get a larger data set to mine regarding the life of stars like ours.
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Re: NW7US comments: May 29 2009 Solar Cycle 24 Prediction

Postby K5TEN » Fri Jan 29, 2010 2:30 pm

I think they are prognosticating out of their backsides.

They are picking lottery numbers.


Bruce
ex-KA0NIU, ex-KA9SOX, now K5TEN (104 countries confirmed--Submitting for DXCC soon! WOOT!)
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1st SW QSL: "Happy Station" Radio Nederland Wereldoemroep, Holland, 1974
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Re: NW7US comments: May 29 2009 Solar Cycle 24 Prediction

Postby K5TEN » Thu Aug 26, 2010 7:44 pm

BTW: Taking nothing away from Thomas' post, I only think these folks who try to predict entire Solar Cycles in advance are shooting in the dark. This might be the biggest and best Solar Cycle in recent history for all they know.

I DO think that Thomas had a good point--especially for new hams and hams recently licenced in the last 5 years or so because they don't/won't know how to expect out of conditions in a Solar Maximum--and brother---you had better be ready! Everything/anything you can do now as far as upgrading rigs, amps, antennas, grounds, etc. will garner you huge dividends when the solar flux hits 150 or 200.

If your station and working pile-up and contesting skills need some work--start working on it now.

Don't be the guy who finds 10 or 15 meters open stem to stern with DX and can only make a few contacts because of a bad antenna or bad operating skills.

I wouldn't want to be that guy.

73

Bruce
ex-KA0NIU, ex-KA9SOX, now K5TEN (104 countries confirmed--Submitting for DXCC soon! WOOT!)
SWL: WDX9KJX And the "WDX9KJX Short Wave Monitoring Service" from 1973 to 1986
1st SW QSL: "Happy Station" Radio Nederland Wereldoemroep, Holland, 1974
2nd SW QSL: "The Voice of Nigeria" Lagos, 1974
3rd SW QSL: "Radio Moscow" USSR
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