|
|
Post by semimadscientist on Jun 5, 2011 16:53:40 GMT
Any where I can get solar flux per spot as a daily number or close? I second this! |
|
|
|
Post by lsvalgaard on Jun 5, 2011 19:53:28 GMT
Any where I can get solar flux per spot as a daily number or close? I second this! Not as measured value per spot [what is a spot anyway?], but if you divide the total flux above the base level [at solar minimum ~66] by the number of spots you get an estimate. |
|
loly
Level 3 Rank
Posts: 154
|
Post by loly on Jun 6, 2011 13:52:40 GMT
|
|
|
|
Post by justsomeguy on Jun 6, 2011 13:59:10 GMT
Unless someone puts in the time to ask some questions and the like it can get pretty dead here. I note how small the sunspots are on average, my fav topic as the general conclusion from the size of spots is that the magnetic field per spot is dropping and it might get very quiet on the sun soon. If it does, does that have any meaning for the earth? I still await the next L & P update from Leif, it has been awhile... Well, I hope discussion here doesn't follow solar activity in it's probable decline over the next few months! If I understand the basics, the decline is more likely over the coming cycle than now. That said, as the magenetism per spot drops and the flux and size drop with it we will likely have a different sun even in this cycle. The real question is, does the total solar irradiance change or the type of radiuation emitted - if it does now or into the future there might be big implications for our little planet. The L+P effect does on the whole seem to be holding, put it would indeed be nice to have some of the latest figures, I agree. The SSNs for June so far are interesting, in that we may get a peak this month or next, meaning that we've got for this first time this cycle a definite secondary peak ( in March ). These secondary peaks, for want of a better term, were a strong feature of cycle 14. What this all means, though, is another matter. Is this a manifestation of the L+P effect, perhaps? Would the 7 monthly or so peaks chracteristic of this cycle and of cycle 14 be caused by the L+P effect, and if so, how? |
|
|
|
Post by justsomeguy on Jun 6, 2011 14:00:24 GMT
Not as measured value per spot [what is a spot anyway?], but if you divide the total flux above the base level [at solar minimum ~66] by the number of spots you get an estimate. Yes, I was looking for an average. If we do this "back of the envelope" calculation, the histporical average we should compare to is about 1 based on Figure 8 in this paper? www.leif.org/research/HMI-Livingston-Comparison.pdfOr is that wrong? |
|
|
|
Post by lsvalgaard on Jun 6, 2011 16:10:32 GMT
Not as measured value per spot [what is a spot anyway?], but if you divide the total flux above the base level [at solar minimum ~66] by the number of spots you get an estimate. Yes, I was looking for an average. If we do this "back of the envelope" calculation, the histporical average we should compare to is about 1 based on Figure 8 in this paper? www.leif.org/research/HMI-Livingston-Comparison.pdfOr is that wrong? You are not wrong. There are indeed fewer spots [since 1996] now than we would expect from the solar F10.7 flux. This is unprecedented and may mean that L&P are correct. Time will tell. |
|
|
|
Post by justsomeguy on Jun 7, 2011 5:23:33 GMT
Unprecedented. Wow. Do we real time acess to a graph over time of SORCE data or just this: lasp.colorado.edu/sorce/data/data_product_summary.htmIf not available, it might be a nice add to your website as the question, if SORCE is calibrated correctly, is what happens over time as we go through this unprecedented period with total solar irradiance and changes in radiation type. |
|
|
|
Post by justsomeguy on Jun 7, 2011 5:27:31 GMT
|
|
loly
Level 3 Rank
Posts: 154
|
Post by loly on Jun 7, 2011 9:46:58 GMT
|
|
loly
Level 3 Rank
Posts: 154
|
Post by loly on Jun 7, 2011 10:09:49 GMT
|
|
|
|
Post by sunspotboy on Jun 7, 2011 11:46:57 GMT
Question for dr. Svalgaard
In January the Northern polar field reversed. After this several Delta-Beta-Gamma sunspots appeared.
In April the Northern field reversed its flip... with the disappearance from the complex sunspots...
Question:
Is there a correlation with the polar flips (and reversal from the flips) and complex sunspots?
2011:01:08_21h:07m:13s 8N 41S -16Avg 20nhz filt: -20Nf 40Sf -30Avgf
2011:01:18_21h:07m:13s 1N 46S -22Avg 20nhz filt: -19Nf 40Sf -30Avgf
2011:01:28_21h:07m:13s 12N 52S -20Avg 20nhz filt: -18Nf 40Sf -29Avgf
2011:02:07_21h:07m:13s 9N 58S -25Avg 20nhz filt: -17Nf 40Sf -29Avgf
2011:02:17_21h:07m:13s 11N 59S -24Avg 20nhz filt: -16Nf 41Sf -28Avgf
2011:02:27_21h:07m:13s 3N 63S -30Avg 20nhz filt: -15Nf 41Sf -28Avgf
2011:03:09_21h:07m:13s 7N 69S -31Avg 20nhz filt: -13Nf 41Sf -27Avgf
2011:03:19_21h:07m:13s 5N 48S -22Avg 20nhz filt: -12Nf 41Sf -27Avgf
2011:03:29_21h:07m:13s -6N 45S -26Avg 20nhz filt: -11Nf 42Sf -26Avgf
|
|
loly
Level 3 Rank
Posts: 154
|
Post by loly on Jun 7, 2011 14:08:10 GMT
An M2.5 flare peaked at 06:41 UT, June 7, 2011. The active region 1226 is located in the southern hemisphere at the west side of the visible solar disk. The magnetic configuration of the active region did not change however dramatically in magnetograms. Magnetograms show the strength of the line-of-sight surface magnetic field. The flare - a flash of radiation -as associated with a plasma eruption. SDO/AIA 304 shows the impressive plasma eruption. The plasma cloud is already visible in SOHO/LASCO and STEREO A-B/COR images. A first estimate gives a speed over slightly more then 1000 km/s. The cloud seems to have a large extend and might cause geomagnetic disturbances arriving at Earth in 2 days. The proton levels went up immediately. >=10MeV and >=50MeV curve passed the thresshold. This proton event is flare-driven. Zoom CME 6:41  |
|
bop
New Member
Posts: 35
|
Post by bop on Jun 7, 2011 18:39:23 GMT
Wooo Attachments:
|
|
|
|
Post by lsvalgaard on Jun 8, 2011 4:09:24 GMT
Question for dr. Svalgaard In January the Northern polar field reversed. After this several Delta-Beta-Gamma sunspots appeared. In April the Northern field reversed its flip... with the disappearance from the complex sunspots... Question: Is there a correlation with the polar flips (and reversal from the flips) and complex sunspots? 2011:01:08_21h:07m:13s 8N 41S -16Avg 20nhz filt: -20Nf 40Sf -30Avgf 2011:01:18_21h:07m:13s 1N 46S -22Avg 20nhz filt: -19Nf 40Sf -30Avgf 2011:01:28_21h:07m:13s 12N 52S -20Avg 20nhz filt: -18Nf 40Sf -29Avgf 2011:02:07_21h:07m:13s 9N 58S -25Avg 20nhz filt: -17Nf 40Sf -29Avgf 2011:02:17_21h:07m:13s 11N 59S -24Avg 20nhz filt: -16Nf 41Sf -28Avgf 2011:02:27_21h:07m:13s 3N 63S -30Avg 20nhz filt: -15Nf 41Sf -28Avgf 2011:03:09_21h:07m:13s 7N 69S -31Avg 20nhz filt: -13Nf 41Sf -27Avgf 2011:03:19_21h:07m:13s 5N 48S -22Avg 20nhz filt: -12Nf 41Sf -27Avgf 2011:03:29_21h:07m:13s -6N 45S -26Avg 20nhz filt: -11Nf 42Sf -26Avgf Not that we know of. The polar fields are large-scale, long-lived phenomena and we think they are not directly related to the small-scale, short-lived spots, even if complex. |
|
|
|
Post by justsomeguy on Jun 8, 2011 14:18:31 GMT
|
|
