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Post by france on May 30, 2012 14:34:52 GMT
so South is more active than North ! I though it was North where activity is the highest  The South is now beginning to be more active: sdowww.lmsal.com/suntoday/but on the historic data south seems to be more active than north |
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Post by lsvalgaard on May 31, 2012 7:44:27 GMT
but on the historic data south seems to be more active than north not really, if you take an average over hundreds of years. |
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Post by meemoeuk on Jun 1, 2012 10:24:56 GMT
Hi Dr Lief,
What do you think to Donald Scott's 'electric sky' theory?
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Post by lsvalgaard on Jun 2, 2012 6:59:20 GMT
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Post by justsomeguy on Jun 16, 2012 12:34:46 GMT
Are the Ap index and sunspot area diverging from their historic relationship?  Image from rom Evolution of SC24 page. |
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Post by lsvalgaard on Jun 16, 2012 14:23:05 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:  |
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Post by meemoeuk on Jul 4, 2012 9:04:36 GMT
Why do the monthly average solar measures take so long to update on solarham? www.solarham.net/averages.htmI can work out these numbers manually from www.swpc.noaa.gov/ftpdir/indices/old_indices/2012Q2_DSD.txtin less than 2 minutes each. An automated computer algorithm should have them done and uploaded in microseconds. Approx 72 hours after noaa gave the 30th June solar data, still no June averages from solarham. F10.7 average for June is 120.5 SSN (SWO) number is 88.6 Solar actvity by these measures is slightly down from May. |
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Post by justsomeguy on Jul 5, 2012 0:06:44 GMT
Because that is not how they are updated.
This website reports the NOAA/NASA numbers which are updated on a normal schedule after the month ends, all data is recalibrated, and everyone signs off. I think it generally happens on the first week, there is a post somewhere on here where it is described and gives the latest possible day when it could be updated (the 8th or so if memory serves). An average you describe could be reported as unofficial and it might change slightly.
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Post by justsomeguy on Jul 29, 2012 15:04:01 GMT
Dr .Svalgaard-
Is there somewhere where we can see easily viewable charts of all the magnetic filed changes (per solar cycle) from when we started studying these?
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Post by lsvalgaard on Jul 30, 2012 6:36:11 GMT
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Post by justsomeguy on Jul 30, 2012 20:20:05 GMT
I thought I had seen that before...
What does the lower field strength mean this cycle, if anything?
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Post by france on Aug 1, 2012 12:04:55 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: Dr Svalgaard have you a same graph with sunspot correlation ? According Lantos et Richard during 80 years there is an anomaly compare to a century of recording ? |
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Post by france on Aug 1, 2012 16:34:44 GMT
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Post by lsvalgaard on Aug 2, 2012 5:33:11 GMT
It is well-known that solar activity controls the thermosphere. I work at Stanford Univ. close to San Francisco, although in the past I did work at Boulder on and off. |
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Post by france on Aug 5, 2012 21:37:58 GMT
No, I don't think so. When plotting Ap, don't start at 3, but at zero. Here is Ap since 1844: 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 ? |
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