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Post by lsvalgaard on Aug 5, 2012 21:48:53 GMT
Dr Svalgaard have you a same graph with sunspot correlation ? According P. Lantos et O. Richard during decade 80 years there is an anomaly compare to recording over un century ? have you such a graph dr Svalgaard ? I don't know what you mean, here is a graph of sunspots since 1700: www.sidc.be/html/wolfaml.html |
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Post by france on Aug 6, 2012 9:00:17 GMT
Are the Ap index and sunspot area diverging from their historic relationship? No, I don't think so. When plotting Ap, don't start at 3, but at zero. Here is Ap since 1844:  D. Svalgaard I mean did you get curves to see how evolve ap index compare to ssn ? |
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Post by lsvalgaard on Aug 6, 2012 16:18:45 GMT
D. Svalgaard I mean did you get curves to see how evolve ap index compare to ssn ? In general ap and the ssn show the 11-yr cycle, but there is no detailed correspondence. |
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Post by france on Aug 7, 2012 15:08:00 GMT
D. Svalgaard I mean did you get curves to see how evolve ap index compare to ssn ? In general ap and the ssn show the 11-yr cycle, but there is no detailed correspondence. why no ? it'sn't a scientific attitude  |
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Post by lsvalgaard on Aug 7, 2012 15:56:50 GMT
In general ap and the ssn show the 11-yr cycle, but there is no detailed correspondence. why no ? it'sn't a scientific attitude We cannot dictate to the sun how to behave. Although there is a rough 11-yr cycle in ap, it simply does not follow the sunspot number in details. You can see that clearly here:  The abscissa for the left-most plot is the 27-day Bartels rotation number |
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Post by Bob k6tr on Aug 8, 2012 3:09:22 GMT
Leif the GONG Farside page is showing a hit for a new spotgroup in the Northern Hemisphere at a very high lattitude. (+30 degrees) One (at least I) would not rot expect this at the peak of the solarcycle. What do you make of this ? Will this peak be a long drawn out affair like the last solar minimum ?
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Post by lsvalgaard on Aug 8, 2012 4:41:56 GMT
Leif the GONG Farside page is showing a hit for a new spotgroup in the Northern Hemisphere at a very high lattitude. (+30 degrees) One (at least I) would not rot expect this at the peak of the solarcycle. What do you make of this ? Will this peak be a long drawn out affair like the last solar minimum ? At solar maximum sunspots at 30 degrees are common:  I do expect the peak to be a long drawn out affair. |
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Post by france on Aug 9, 2012 11:43:19 GMT
why no ? it'sn't a scientific attitude We cannot dictate to the sun how to behave. Although there is a rough 11-yr cycle in ap, it simply does not follow the sunspot number in details. You can see that clearly here: The abscissa for the left-most plot is the 27-day Bartels rotation number Yes doctor, sun does as it wishes sometimes apathetic sometimes very working ! it's normal, in nature of things alltogether ! thanks for your studies dr Svalgaard. We can see the anomaly in the 21 bartel rotation. Have you an idea why it's happened ? |
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Post by lsvalgaard on Aug 9, 2012 12:03:23 GMT
We cannot dictate to the sun how to behave. Although there is a rough 11-yr cycle in ap, it simply does not follow the sunspot number in details. You can see that clearly here: The abscissa for the left-most plot is the 27-day Bartels rotation number Yes doctor, sun does as it wishes sometimes apathetic sometimes very working ! it's normal, in nature of things alltogether ! thanks for your studies dr Svalgaard. We can see the anomaly in the 21 bartel rotation. Have you an idea why it's happened ? Ap depends a lot on the solar wind speed. The speed is often low at solar maximum because sunspots have closed magnetic field lines that do not reach out into the solar wind. |
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Post by france on Aug 9, 2012 18:12:39 GMT
Yes doctor, sun does as it wishes sometimes apathetic sometimes very working ! it's normal, in nature of things alltogether ! thanks for your studies dr Svalgaard. We can see the anomaly in the 21 bartel rotation. Have you an idea why it's happened ? Ap depends a lot on the solar wind speed. The speed is often low at solar maximum because sunspots have closed magnetic field lines that do not reach out into the solar wind. so according to you this anomaly proceeded only from the speed of solar wind due to the closed magnetic field lines. It was the only one time this anomaly occured but wind may be has been low during other maximum. So that brings up an other question from me : did you get graph with speed of solar wind compare to solar cycle (and ap index of course) ? for example acutally solar wind speed is low but ap follows ssn and magnetic field lines are not so open ! it's difficult to understand solar wind speed is the only reason to this "unique" anomaly. |
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Post by lsvalgaard on Aug 10, 2012 3:15:17 GMT
Ap depends a lot on the solar wind speed. The speed is often low at solar maximum because sunspots have closed magnetic field lines that do not reach out into the solar wind. so according to you this anomaly proceeded only from the speed of solar wind due to the closed magnetic field lines. It was the only one time this anomaly occured but wind may be has been low during other maximum. So that brings up an other question from me : did you get graph with speed of solar wind compare to solar cycle (and ap index of course) ? for example acutally solar wind speed is low but ap follows ssn and magnetic field lines are not so open ! it's difficult to understand solar wind speed is the only reason to this "unique" anomaly. First, when I tell you something, it is because that is the way it is. I can always back that up if need be. Here are, for example, the solar wind speed observed during the space age and the resulting Ap [lower graph]. Although it is true that many things go into Ap, the solar wind speed is the main controlling factor. Check, for instance the dip in 1980 in both variables:  |
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Post by vukcevic on Aug 10, 2012 9:40:54 GMT
Dr. S.
Do you have a link to the SW data (27 day scale resolution) ?
Thanks.
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Post by lsvalgaard on Aug 10, 2012 11:40:04 GMT
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Post by vukcevic on Aug 10, 2012 13:03:50 GMT
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Post by france on Aug 10, 2012 23:13:41 GMT
so according to you this anomaly proceeded only from the speed of solar wind due to the closed magnetic field lines. It was the only one time this anomaly occured but wind may be has been low during other maximum. So that brings up an other question from me : did you get graph with speed of solar wind compare to solar cycle (and ap index of course) ? for example acutally solar wind speed is low but ap follows ssn and magnetic field lines are not so open ! it's difficult to understand solar wind speed is the only reason to this "unique" anomaly. First, when I tell you something, it is because that is the way it is. I can always back that up if need be. Here are, for example, the solar wind speed observed during the space age and the resulting Ap [lower graph]. Although it is true that many things go into Ap, the solar wind speed is the main controlling factor. Check, for instance the dip in 1980 in both variables: many thanks dr Svalgaard here with ssn  a good place to get all graphs |
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