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Post by justsomeguy on May 17, 2011 10:50:26 GMT
I note the north field has gone to zero when it often does not. How significant is that?
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Post by Bob k6tr on May 17, 2011 20:03:07 GMT
I note the north field has gone to zero when it often does not. How significant is that? Both Fields reverse one each solar cycle. By Solar Minimum they will be opposite of where they were the cycle before. As the fields oscillate the number of times they cross 0 depends on several factors. Namely how steep the transition is and the period of oscillation.
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Post by donmartin on May 19, 2011 1:01:17 GMT
What determines the axial position of field reversal?
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Post by lsvalgaard on May 21, 2011 5:43:37 GMT
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Post by donmartin on May 21, 2011 17:56:26 GMT
Thank you
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Post by justsomeguy on May 23, 2011 1:11:52 GMT
Seems to take forever between updates. Are they monthly or are they less frequent?
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Post by lsvalgaard on May 23, 2011 2:10:27 GMT
Seems to take forever between updates. Are they monthly or are they less frequent? Bill Livingston gets a block of 4-5 observing days every month. Which is fine, as the Sun is in no hurry.
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Post by justsomeguy on May 27, 2011 23:45:03 GMT
....but I am.....
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Post by lenardob on Jun 14, 2011 18:46:06 GMT
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Post by lsvalgaard on Jun 15, 2011 3:55:05 GMT
Indeed. But the sun could change its mind tomorrow, so we still have to wait and see. If the decrease lasts another two years, then there will be little doubt.
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Post by justsomeguy on Jun 17, 2011 19:25:02 GMT
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Post by Bob k6tr on Jun 18, 2011 2:52:08 GMT
Leif in all of the animated diagrams that I have seen put out by NASA I always see very strong magnetic field lines extending from the poles at Solar Minimum. As the cycle progresses those field lines fold downward towards the equator.
What I notice is as the lines progress towards the equator there intensity drops fairly rapidly and diminsh almost completely by time they are 45 degrees off the equator. Is this accurate ? And if so is their some sort of internal shielding mechanism in the sun near the equator ?
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Post by lsvalgaard on Jun 18, 2011 5:07:15 GMT
Still, the data is highly uncertain.
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Post by lsvalgaard on Jun 18, 2011 5:11:33 GMT
Leif in all of the animated diagrams that I have seen put out by NASA I always see very strong magnetic field lines extending from the poles at Solar Minimum. As the cycle progresses those field lines fold downward towards the equator. What I notice is as the lines progress towards the equator there intensity drops fairly rapidly and diminsh almost completely by time they are 45 degrees off the equator. Is this accurate ? And if so is their some sort of internal shielding mechanism in the sun near the equator ? most of whqat you have seen may be 'artists' impressions. The current paradigm was formed many years ago by these papers: www.leif.org/research/A%20View%20of%20Solar%20Magnetic%20Fields,%20the%20Solar%20Corona,%20and%20the%20Solar%20Wind%20in%20Three%20Dimensions.pdf www.leif.org/research/HCS-Nature-1976.pdf
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Post by lsvalgaard on Jun 23, 2011 15:22:09 GMT
what did I miss?
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