I’ve done some house cleaning and maintenance today to replace the aging SOHO image on the sidebar (which had not been updating since January 11th, thanks to Ric Werme for reminding me) with a new image from the Solar Dynamics Observatory (SDO) which provides stunning detail over the now 15 year old SOHO instrument.
We have a one-stop-shop for the most commonly used solar images and data in one place now.
See the WUWT Solar Images and Data Page here
Be sure to bookmark it or you can get it from the sidebar image or the pulldown menu under the WUWT header:
I’ve tried to include everything that I think might be interesting and pertinent, but I will entertain suggestions for new content below. Images and links only please.
Tim L says:
January 23, 2011 at 8:42 pm
“Just saying.”
Mee too!
And what is the substance in ‘just saying’?
What is it precisely you are saying? and what does that bring to the table?
We went through that whole shebang back here:
http://wattsupwiththat.com/2010/07/30/sunspots-at-high-detail-now-available-from-sdo-what-will-this-do-to-the-sunspot-count/
It seems that nobody has learned anything in the meantime.
Leif Svalgaard says: January 23, 2011 at 8:36 pm
“The X-rays and gamma rays do not have any direct influence on the magnetosphere [as they are just photons of light].”
I’m confused. Per this article;
http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=44558
it appears that Magnetar 1E 1547.0-5408 emitted some “magnetically-powered bursts” that impacted Earth’s Magnetosphere between Jan 2oth and 25th. If not gamma rays or X-rays then what were they, Radio Waves?
http://www.youtube.com/watch?feature=player_detailpage&v=007-R6yVngU
Just The Facts says:
January 23, 2011 at 10:03 pm
I’m confused. Per this article;
http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=44558
it appears that Magnetar 1E 1547.0-5408 emitted some “magnetically-powered bursts”
The magnetic power source was at the magnetar. What hits us are photons, not magnetism.
Just The Facts says:
January 23, 2011 at 10:03 pm
emitted some “magnetically-powered bursts” that impacted Earth’s Magnetosphere between Jan 2oth and 25th.
Nothing impacted the Magnetosphere between Jan 20-25, 2009:
http://hirweb.nict.go.jp/sedoss/solact3/do?d=2009,1,1
To differentiate between electrons drift and the associated electric/magnetic field propagation, is first thing all students at the Electrothechnic Faculty had to learn.
http://i392.photobucket.com/albums/pp6/SerbianCulture/Serbian%20Architecture/etf_001.jpg
Notice statue of Nikola Tesla.
Now you accepted
Hironori Shimazua,b,c, MotohikoTanaka: A flux rope requires a large electric current to maintain its magnetic field…
As far as feedback is concerned there is one more thing to learn at that is:
As the current flows in a loop Sun –flux tube (skimming magnetosphere) –Sun there is a feedback, regardless where is the corona’s bit.
vukcevic says:
January 24, 2011 at 12:39 am
To differentiate between electrons drift and the associated electric/magnetic field propagation, is first thing all students at the Electrothechnic Faculty had to learn.
So explain what you have learned so that everybody here can understand it.
As far as feedback is concerned there is one more thing to learn at that is:
As the current flows in a loop Sun –flux tube (skimming magnetosphere) –Sun there is a feedback, regardless where is the corona’s bit.
So, explain the feedback mechanism.
Leif Svalgaard says:
January 23, 2011 at 10:34 pm
Just The Facts says:
January 23, 2011 at 10:03 pm
I’m confused. Per this article;
http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=44558
it appears that Magnetar 1E 1547.0-5408 emitted some “magnetically-powered bursts”
The magnetic power source was at the magnetar. What hits us are photons, not magnetism.
~
Just the facts.. if you really really want to know..try this article page 5 ..table of documented SST’s from the early 50’s to 1978 both major and minor SST’s. Mostly occur between mid Nov. and March. You may want to note that the earth enters and orbits the downwind side (gas pile up) of the solar gravitational focusing cone, during those months. Some of the youtube videos Chris had posted showed wild fluctuations in the magnetopause position, indicating strong dayside reconnection and possibly setting up the equatorial atmosphere for the waves, that most of the articles I have seen imply are causing SSTs.
I did a go round with Dr. S. a few years back on this..got my knuckles wrapped with his nonsense ruler too ouch..
vukcevic says:
January 24, 2011 at 12:39 am
~
Don’t lose site of the gravitational focusing cone in all this Vuks. I think were going to need it.
Maybe a break Vuks. Watched Andy Jackson’s presentation yet?
http://www.agu.org/meetings/fm10/lectures/lecture_videos/GP43C.shtml
Field lines in and field lines out, matching patches north and south. As I watched his field time lapse..tried to see what the toroidal field role was..maybe you can better than I.
Thanks Leif, keeping us on the tracks, we don’t always like it though.
Just the facts oops forgot the link.
Stratospheric Warmings: Observations and Theory
MARK R. SCHOEBERL
http://www.leif.org/EOS/RG016i004p00521.pdf
Leif Svalgaard says:
January 24, 2011 at 2:14 am
……………..
Re electron drift vs. field propagation:
You learned your electrons in the shadow of Niles Bohr, the genius of the orbiting particles, I learned my electro-magnetic fields in the shadow of another genius, Nikola Tesla.
Re feedback:
Why not have some fun by calculating round trip of the Alfven wave to distant reaches of the heliosphere and back.
Leif Svalgaard says: January 23, 2011 at 10:41 pm
“Nothing impacted the Magnetosphere between Jan 20-25, 2009:
http://hirweb.nict.go.jp/sedoss/solact3/do?d=2009,1,1”
Are you saying that I can’t trust everything I find on the internet…? 🙂
What about Jan 26th, 2009?:
http://hirweb.nict.go.jp/dimages/magneka/20090126.html
http://www3.nict.go.jp/y/y223/simulation/realtime/movie/2009/test_6.20090126.avi
Solar wind was low, but the magnetosphere appears to have been buffeted and thoroughly contorted by something.
Also, I’ve honed my list a bit further, here is a list of solar events that may impact Earth’s magnetosphere:
Solar – Temporary Wind Decline:
http://science.nasa.gov/science-news/science-at-nasa/1999/ast13dec99_1/
Solar – Coronal Holes
http://helios.gsfc.nasa.gov/chole.html
Solar – Solar Energetic Particles (SEP)
http://helios.gsfc.nasa.gov/sep.html
Solar – Coronal Mass Ejection:
http://www.esa.int/esaSC/SEMF75BNJTF_index_0.html
http://www.ratedesi.com/video/v/8AuCE_NNEaM/Sun-Erupts-to-Life-Unleashes-a-Huge-CME-on-13-April-2010
Solar – Magnetosphere Breach:
http://science.nasa.gov/science-news/science-at-nasa/2008/16dec_giantbreach/
Acceptable? Anything of importance that I’ve missed?
Carla says:
January 24, 2011 at 5:31 am
……….
Andy Jackson’s presentation : useful details , fertile ground for supporting my ‘outrages’ and ‘counter-science’ hypothesis.
Just The Facts says:
January 24, 2011 at 1:37 pm
~
Note the density and flopping around of the IMF in the movie.
http://www3.nict.go.jp/y/y223/simulation/realtime/movie/2009/test_6.20090126.avi
Wish you had the magnetopause movie for the date in question, might be able to realize the wave. Wild fluctuations in the magnetopause position are keys to the wave. By wild I mean like from 3-5 Earth radii out off the charts 15Re and beyond. Now that’s a heck of a magnetopause wave wave . In the article on “The Day the Solar Wind Disappeared,” what happened to the magnetopause, Just the Facts?
One more question Just the Facts, why isn’t the Doc all worried about it?
Here’s a link to CCMC magnetopause daily movie.
http://ccmc.gsfc.nasa.gov/cgi-bin/display/RT_t.cgi?page=mpause
If doc is still around; polar fields waste no time.
http://www.vukcevic.talktalk.net/PF-latest.gif
My formula is coming up trumps.
http://www.vukcevic.talktalk.net/LFC-CETfiles.htm
Carla says: January 25, 2011 at 5:49 am
“Wish you had the magnetopause movie for the date in question, might be able to realize the wave. Wild fluctuations in the magnetopause position are keys to the wave. By wild I mean like from 3-5 Earth radii out off the charts 15Re and beyond. Now that’s a heck of a magnetopause wave wave.”
You can request a model run here;
http://ccmc.gsfc.nasa.gov/models/modelinfo.php?model=OpenGGCM
http://ccmc.gsfc.nasa.gov/requests/user_registration.php
though I’m not sure what it will get you.
Also, check out the wave that occurs at very end of 1/21/09:
http://www3.nict.go.jp/y/y223/simulation/realtime/movie/2009/test_6.20090121.avi
What is that?
“In the article on “The Day the Solar Wind Disappeared,” what happened to the magnetopause, Just the Facts?”
Yes, “Earth’s magnetosphere swelled to five to six times its normal size”. Here’s NASA’s effort at animating it:
http://science.nasa.gov/media/medialibrary/1999/12/13/ast13dec99_1_resources/Solarwind.mov
“One more question Just the Facts, why isn’t the Doc all worried about it?”
Nothing to worry about, I am sure there are logical explanations for it all…
vukcevic says:
January 24, 2011 at 12:36 pm
I learned my electro-magnetic fields in the shadow of another genius, Nikola Tesla.
Who didn’t know about Alfven waves
Why not have some fun by calculating round trip of the Alfven wave to distant reaches of the heliosphere and back.
With your superior knowledge of physics this should be a snap for you. We are waiting for you to tell us.
Just The Facts says:
January 24, 2011 at 1:37 pm
Are you saying that I can’t trust everything I find on the internet…? 🙂
What about Jan 26th, 2009?
That was a recurring sector boundary going by.
Leif Svalgaard says:
January 25, 2011 at 11:08 pm
……. calculating round trip of the Alfven wave to distant reaches of the heliosphere and back.
Just about to mach the Hale cycle (22-23 years), an interesting number don’t you think?
vukcevic says:
January 26, 2011 at 12:27 am
calculating round trip of the Alfven wave to distant reaches of the heliosphere and back. Just about to mach the Hale cycle (22-23 years), an interesting number don’t you think?
The Alfven speed is about a tenth of the solar wind speed, so since it takes the solar wind about a year to reach the heliopause, it should take an Alfven wave about ten times a long, and then double of for the return trip. The number is not interesting per se. Just one of those numerology things out there [e.g. apparent sizes of Sun and Moon are equal]. The time it takes for an Alfven wave to travel from a sunspot through the center of the Sun to the antipodal surface and back is also ~22 years.
Alfven wave to distant reaches of the heliosphere and back ~ 22 years
Alfven wave to through the centre of the Sun to the antipodal surface and back ~ 22 years.
Hale cycle ~ 22 years
Apparent sizes of Sun ~ apparent sizes of Moon .
You are not postulating ‘intelligent design’, are you?
Leif Svalgaard says:
January 26, 2011 at 2:27 am
vukcevic says:
January 26, 2011 at 12:27 am
~
Along those same lines, I’ve read that the system replenishes about every ’25’ years. I thought the number was interesting too.
~
Just The Facts says:
January 25, 2011 at 8:26 pm
~
Keep this in mind while watching those NICT simulations.
http://gse.gi.alaska.edu/recent/javascript_movie.html
Carla says:
Your comment is awaiting moderation.
January 26, 2011 at 5:06 am
Leif Svalgaard says:
January 26, 2011 at 2:27 am
vukcevic says:
January 26, 2011 at 12:27 am
~
Along those same lines, I’ve read that the system replenishes about every ’25′ years. I thought the number was interesting too.
~
Now you got me wondering what the new downloaded mix will be like this time around. I mean the size of the bubble is is smaller requiring less time to replenish (or whatever term works for you) and what the content ratios will be.
~
Just the Facts..
Along those same lines of SST and waves, been checking on something that may be of interest. Perhaps even the holy grail. But will need ‘lots’ of help for the deciphering. lol Picture a substorm onset and then a reversal, so its already going one way and then shear angle changes and flops and it goes the opposite way.
This old spiderwoman needs a song for the day..Fabulous Thunderbirds “Tuff Enuff”
vukcevic says:
January 26, 2011 at 4:13 am
You are not postulating ‘intelligent design’, are you?
Height of the Cheops pyramid is one nano AU. and more.
I’m proposing non-intelligent fascination by some of numerical coincidences without physical understanding.
An Alfven wave cannot make it upstream back to the Sun, because the medium of the wave moves away from the Sun ten times faster. Similarly, an Alfven waves moving away from the Sun is embedded in a medium moving ten times faster, so will not take ten years to reach the heliopause, but only one year.
Sorry Lief, but where is the datum from which the height of Cheops is measured, and how much error is there in the nanoAU?
Or are you just being facetious?
Keith Battye says:
January 26, 2011 at 5:31 am
Sorry Leif, but where is the datum from which the height of Cheops is measured, and how much error is there in the nanoAU?
The current height is 140 m, but the top 10 meters have been lost, so the height could have been 150 which is close to 1 nanoAU=149.6 m. For true believers of numerology this difference is either not significant, or else extremely important as it shows that the distance to the sun has changed since the pyramid was built. Perhaps powerful electromagnetic zaps from the universe has a finger in this. Our local pseudo-scientists can surely find a suitable explanation. Vuk can surely explain how perhaps Jupiter shine can explain just about everything and Carla can find some interstellar gas that might even help fine tune the [e.g. file off by abrasion] height. All kinds of wonderful things are out there for people with a mind so open that their brain has fallen out.
Just the Facts meet,
Stefan Eriksson.
Research Interests
My research is focused on magnetospheric physics, such as magnetopause reconnection away from the subsolar region and the link between substorm onsets and tail reconnection. Whether antiparallel merging for dominant IMF By conditions may explain high-latitude lobe cell convection and the NBZ field-aligned current system in the polar cap is a particular focus. Whether slow-mode shocks are observed at times of near-Earth tail reconnection is also a recent focus as well as the analyses of solar wind reconnection events.
http://lasp.colorado.edu/~eriksson/
Ionospheric convection response to high-latitude reconnection and electrodynamics of a split-transpolar aurora (University of Leicester, 2006) [.ppt]
~
Just the idea of a split-transpolar aurora was interesting to me, not to mention magnetopause reconnection dayside. time to toast a bagel..lol