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Thread: "Geometry" (? !) in Solar Coronal Holes?

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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind
    speed: 375.3 km/sec
    density: 3.1 protons/cm3 - not too fast, not too dense..


    Lots of sunspots with some angular alignment - AR2175 is the most potent of the quartet. It has a 'beta-gamma-delta' magnetic field that harbors energy for X-class solar flares. The other three have "beta-gamma" magnetic fields that pose a threat for lesser albeit still powerful M-flares.

    The sunspot of greatest interest is AR2177 because it is turning toward Earth.

    Auroral oval showing strong auroras



    Planetary K-index
    Now: Kp= 2 quiet currently but
    24-hr max: Kp= 4 unsettled coming up



    coronal holes have closed up but there is some interesting geometry forming

    An interesting Auroral image with a person in the picture - Northern Norway


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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind - not too fast but proton count is 3X higher than average
    speed: 328.3 km/sec
    density: 11.4 protons/cm3


    large compliment of sunspots facing earth - Earth-facing sunspot AR2178 has a 'beta-gamma' magnetic field that harbors energy for M-class flares.

    Radio Sun flux up a bit
    10.7 cm flux: 149 sfu


    Geometry is present, but no large coronal holes (leaking particles) facing earth

    AR2172-AR2173 erupted on Oct. 2nd around 1915 UT, producing an M7-class solar flare. NASA Solar Dynamics Observatory photographed a massive plume of debris flying away from the blast site - A flash of UV radiation from the flare ionized the top of Earth's atmosphere, briefly disturbing the normal propagation of shortwave and VLF radio signals on the dayside of Earth.

    Auroral images were showing up nicely in the northern latitudes


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    Default Re: "Geometry" (? !) in Solar Coronal Holes?


    There's currently geometry and a coronal hole earth facing with particle streams.

    Interplanetary Mag. Field
    Btotal: 4.2 nT
    Bz: 0.3 nT south

    Solar wind is about normal with an average proton count
    speed: 399.9 km/sec
    density: 4.7 protons/cm3

    The particle agitation being a bit lower, the auroral lights are a bit weaker but still pretty


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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind speed is not too high, but the proton count is elevated.
    speed: 379.3 km/sec
    density: 8.7 protons/cm3

    The aurora is not too strong overall, but there is some brilliance


    The coronal solar holes are not large at this time and not exhibiting geometry


    some nice auroral images from the far north latitudes


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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind - speed and particle count is dropping to lower normal levels
    speed: 333.4 km/sec
    density: 3.8 protons/cm3

    Planetary K-index
    Now: Kp= 3 quiet
    24-hr max: Kp= 4 unsettled

    Radio Sun
    10.7 cm flux: 125 sfu (about normal to low)


    Although there is not a large coronal hole earth facing, there is geometry forming as seen in this pix

    The auroras in Norway are showing some very nice geometry


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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind - proton count is HIGH with a slow incoming speed
    speed: 312.7 km/sec
    density: 11.0 protons/cm3


    There is geometry present, and what appears to be a large hole at the bottom portion of the image, but NASA is saying there IS NO large earthfacing coronal hole.. This is odd considering the amount of protons present in the solar wind.

    Auroral images are currently weak also, again inconsistent with the low proton count. Earlier.. there were some bright aurorals..




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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind - proton count is still high, but not excessively elevated, wind speed is increasing
    speed: 420.7 km/sec
    density: 7.6 protons/cm3

    Sunspots visible are small - (interesting)


    Solar coronal holes are not directly earth facing, but there is a large hole shown in the bottom part of the coronal disk..


    Real-time Auroral oval band currently is strong, but there is no obvious source for the continued protons and electrons, a bit of an anomaly unless the magnetic fields were just right to take earlier minor cme's and use that as the excitation.


    Planetary K-index
    Now: Kp= 2 quiet
    24-hr max: Kp= 2 quiet

    Interplanetary Mag. Field
    Btotal: 7.4 nT
    Bz: 1.9 nT north
    (Generally south field orientations result in stronger anomalys being localized) this is not a high field strength and K values are relatively calm.


    Auroras recorded yesterday are still weak, but may be stronger today, considering the dense auroral oval currently happening.

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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind - slightly slower and slightly less protons
    speed: 408.5 km/sec
    density: 5.0 protons/cm3

    Updated: Today at 0116 UT


    The coronal image is about the same, no large earthfacing holes but geometry present

    Auroral activity again is low, with the auroral oval weak.


    Planetary K-index is currently
    Now at: Kp= 3 quiet
    24-hr max : Kp= 3 quiet

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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind - about the same, average proton count, speed moderate
    speed: 401.0 km/sec
    density: 4.4 protons/cm3



    numerous sunspots - From SDO/HMI reports:
    "None of the sunspots on the sun's visible disk pose a threat for flares. However, during the next 24 hours, a much more active sunspot is expected to appear over the sun's SE limb. It could be the return of old sunspot complx AR2172-AR2173"

    Radio Sun
    10.7 cm flux: 126 sfu - slightly higher than normal



    no large earth facing coronal holes - some unusual swirling geometry, but no open hole geometry earth-facing.. A bit of a change than earlier. There is a start of geometrical formation in the upper left of the image which should rotate into view in the next few days.

    Auroral Oval is thin but bright in that thin band.


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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind - higher speeds indicated, having passed through, last night, Oct. 18th, multiple folds in the heliospheric current sheet--a phenomenon known as "solar sector boundary crossings.
    current speed: 457.0 km/sec
    density: 3.9 protons/cm3


    strong coronal holes are indicated with geometry

    Planetary K-index
    Now: Kp= 3 quiet
    24-hr max: Kp= 4 unsettled

    The solar phenomenon layer pass-through resulted in some spectacular auroras




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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind - windspeed higher still than yesterday's report - proton count is still low, but they are coming in fast - no doubt this will wiggle the geomagnetics and evoke some tension..
    speed: 502.8 km/sec
    density: 3.9 protons/cm3



    there is that big sunspot crackling over in the bottom left corner in the image.. Sunspot AR2192 has grown even bigger, spreading across 1/3rd more solar terrain today than it did yesterday.

    Radio Sun
    10.7 cm flux: 160 sfu is about normal.

    10.7 centimeters is in the microwave radio band.

    The auroral band currently is pretty bright and pretty tight indicating a high level of above earth geometrical energy fields are present (see yesterdays spectacular geometry - what does it look like? Pretty amazing stuff appears to form in the plasma fields..)

    Planetary K-index
    Now: Kp= 5 storm
    24-hr max: Kp= 5 storm - definitely rocking and rolling



    Sun is definitely experiencing some strong coronal holes, earth facing WITH strong geometry. October 22-24 should have the energy from the holes reach earth.

    Spectacular Auroras from all that energy being converted in the upper gases surrounding the earth.


    And Auroras are showing up, in New Zealand


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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind - fast wind hardly any protons
    speed: 576.7 km/sec
    density: 0.7 protons/cm3

    Very odd...

    SOLAR WIND SPARKS NORTHERN LIGHTS: A high-speed stream of solar wind is buffeting Earth's magnetic field, sparking bright lights around both poles. "This evening the auroras appeared everywhere,"

    Planetary K-index
    Now: Kp= 2 quiet
    24-hr max: Kp= 5 storm

    Interesting geometry in the aurora - not a sheet


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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind getting back to normal ranges, and particle count coming up to normal levels
    speed: 392.6 km/sec
    density: 3.3 protons/cm3



    AR2192 is still active and earth facing.

    Radio Sun - radiowaves/noise is hitting the earth from the flare, this reading is higher than normal - microwavelength energy does interact with the nervous system.
    10.7 cm flux: 216 sfu

    Planetary K-index
    Now: Kp= 2 quiet
    24-hr max: Kp= 3 quiet

    so the magnetic fields are basically stable, but the microwave fields from the sunspot would be creating an over-all biological "stress"

    Aurora patterns are still dramatic


    And for Geometry in the solar surface corona



    all major coronal holes have sealed, instead taking front stage is AR2192 crackling away earth facing..

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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind - speeding up with more protons - the active solar flare pops are contributing to this.
    speed: 445.1 km/sec
    density: 5.1 protons/cm3

    X-ray Solar Flares
    6-hr max: X3 2141 UT Oct24
    24-hr: X3 2141 UT Oct24


    real blemished AR2192

    Planetary K-index
    Now: Kp= 2 quiet
    24-hr max: Kp= 4 unsettled



    there is a strong linear rod-like geometry forming - if this opens up this could become a substantial 1/2 the width of the sun solar coronal hole, earthfacing..

    Radio Sun - microwave outflow still remains HIGH
    10.7 cm flux: 227 sfu

    Auroral activity is slightly diminished in the northern hemisphere, with a bit of streaking geometry


    The auroral activity in the southern hemisphere (down under) is quite colorful signifying multiple different high atmospheric gases being excited


    this spectral chart illustrates where the different colors appear, what gas is being excited.


    Quote The strong, green light originates at altitudes of 120 to 180 km. Red Northern Lights occur at even higher altitudes, while blue and violet occur mostly below 120 km. When the sun is "stormy," red colors occur at altitudes of 90 to 100 km.

    Entirely red Northern Lights may sometimes be seen, particularly at low latitudes. In earlier times, people often mistook this red light for fire on the horizon.

    As the above diagram shows, the different colors of the aurora at different altitudes relate to the varying composition of the earth’s atmosphere and its decreasing density moving away from the surface. The colors depend on the relative proportions of oxygen and nitrogen at the level of the auroral activity.
    (source)

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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Definitely not a good time to go scuba diving. lol

  16. The Following User Says Thank You to Roisin For This Post:

    Bob (25th October 2014)

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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind - speed currently is dropping and proton count is dropping
    speed: 369.3 km/sec
    density: 3.8 protons/cm3

    In the past 24 hours, the giant active region has produced two X-class solar flares: X3 (Oct. 24 @ 2140 UT) and X1 (Oct 25 @ 1709 UT)

    With the X class flares out of AR 2192 the xray count and electron count, and microwave emission from the massive sunspot continues to be energetically bombarding earth.



    X-ray Solar Flares
    6-hr max: X1 1709 UT Oct25
    24-hr: X3 2140 UT Oct24

    This sunspot cluster, AR2192 remains the largest and most active sunspot of the current solar cycle. Earth-directed explosions are likely this weekend. NOAA forecasters estimate an 85% chance of M-class flares and a 45% chance of X-flares during the next 24 hours.



    Radio Sun - still exhibiting higher than normal activity (microwaves hitting the earth from the sun)
    10.7 cm flux: 218 sfu

    The observations by NOAA and NASA scientists is that the sunspot of interest hasn't produced any massive coronal mass ejection (CME).



    the current auroral oval is nil at the moment.


    is a closeup of AR2192 exhibiting an X3.1 class flare.

    As far as the geomagnetics with all this rocking and rolling on the sun, things remain calm.

    Planetary K-index
    Now: Kp= 2 quiet
    24-hr max: Kp= 3 quiet

    Both X-flares produced brief but strong HF radio blackouts over the dayside of Earth. Communications were disturbed over a wide area for approximately one hour after the peak of each explosion.



    strong pronounced linear and geometrical geometry is present however no large earthside coronal holes have formed.

    Before the current auroral oval calmed down, this was photographed over Alaska - quite spectacular and colorful

    Last edited by Bob; 26th October 2014 at 00:26.

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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind - wind speed is about normal but proton count IS going up
    speed: 369.2 km/sec
    density: 7.5 protons/cm3

    X-ray Solar Flares
    6-hr max: M1 1201 UT Oct26
    24-hr: X2 1056 UT Oct26

    M class has been happening but X2 is still on the prediction plate



    AR2192 has been in pretty much constant flare mode without violent CME explosions, and is slowly turning away from earth facing..

    Radio Sun - still high levels of microwaves hitting the earth from the AR2192 and the other minor sunspots
    10.7 cm flux: 219 sfu

    Planetary K-index
    Now: Kp= 2 quiet
    24-hr max: Kp= 3 quiet about normal with a bit of jitters..



    larger



    no open earth side facing coronal holes, but there is geometry, both in the coronal "features" (the dark spots) and a pronounced sunspot BAND and distribution.. The sunspots are corresponding to vibrations happening appearing at the nodes in the oscillatory fields within the nuclear plasma..

    Up in the Yukon, some interesting auroral patterns have appeared


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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind
    speed: 413.8 km/sec
    density: 3.1 protons/cm3
    About normal, but this may pick up when the small cme reaches earth



    AR2192 is still glaring as the spot moves out of earth view.

    As AR2192 approaches the sun's horizon, it is no longer facing Earth. However, the odds of an Earth-directed radiation storm are higher than ever. The reason is, the western limb of the sun is well-connected to Earth. Solar magnetic fields springing out of that region spiral back to our planet. If a sunspot passing through the area explodes, those spiralling magnetic fields can funnel energetic particles in our direction.

    Radio Sun dropping towards normal ranges. Lower microwave levels are good, less bio tension.
    10.7 cm flux: 188 sfu

    Interplanetary Mag. Field
    Btotal: 6.6 nT
    Bz: 2.3 nT south
    The south bound field polarity can present with power outages, and electrical upsets. Large cme upsets from AR2192 would be coupled into earths fields should that happen with this polarity.



    The geometry in the solar coronal holes are amazing.. NOAA NASA says these are no large earth facing coronal holes


    The field lines in the Aurora (Sweden) are pretty spectacular
    Last edited by Bob; 2nd November 2014 at 19:28.

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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind - proton level is high, and windspeed is above norms (slightly)
    speed: 481.1 km/sec
    density: 8.2 protons/cm3


    currently a couple earth facing sunspots

    POLAR MAGNETIC STORMS: A stream of solar wind is buffeting Earth's magnetic field, sparking auroras around the Arctic Circle. This is from the previous earlier AR2192 events.
    The display is likely to continue over the next 48 hours. NOAA forecasters estimate a 40% chance of polar geomagnetic storms on Nov. 2nd and 3rd

    Radio Sun is back down to normal levels as AR2192 passed the horizon and is no longer pointing at the earth.
    10.7 cm flux: 120 sfu

    Planetary K-index - higher obviously than a 1, but stable
    Now: Kp= 3 quiet
    24-hr max: Kp= 3 quiet

    Interplanetary Mag. Field
    Btotal: 4.9 nT
    Bz: 4.1 nT north - northpointing tends to be a more stable orientation


    There is a large geometrical solar coronal hole which is earth facing. This is streaming particles towards earth. Solar wind flowing from the coronal hole should reach Earth on Nov. 3-4

    AR2192 which was the large sunspot of last month, could possibly be back mid November.

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    Default Re: "Geometry" (? !) in Solar Coronal Holes?

    Solar wind speed is down a bit but the proton count remains up.
    speed: 397.8 km/sec
    density: 9.2 protons/cm3

    Radio Sun microwave output is still now, indicating no active sunspot irradiating earth with intense microwaves
    10.7 cm flux: 124 sfu

    Planetary K-index
    Now: Kp= 2 quiet
    24-hr max: Kp= 2 quiet - smooth sailing



    the coronal holes are still quite large and are streaming particles to the earth, expecting interaction with the ionosphere by the 4th

    Interplanetary Mag. Field
    Btotal: 9.3 nT
    Bz: 7.0 nT north - strongly oriented and stabilizing

    History on AR2192 the great grand daddy of sunspots for this solar cycle:
    AR2192, however, was "all flash." It produced lots of solar flares but very few CMEs--only one, in fact. No one knows why.

    Because AR2192 hurled zero CMEs toward Earth, earth did not experience any geomagnetic storms during the sunspot's apparition. For aurora watchers, the Great Sunspot was actually a bit of a dud.

    Right now AR2192 is transiting the farside of the sun. If it does not decay too much while it is there, the sunspot could return intact to the Earthside before mid-November.

    None of the sunspots on the Earthside of the sun are actively flaring.



    A sunspot just around the bend, however, could break the quiet.

    The auroral band has been a bit weak.. But there is some interesting geometry - here are 4 different views over time from the same location:


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