Solar Sector Boundary Crossing Coincides With Historic 150th Anniversary


September 2nd marks a historic 150th anniversary. On this day in 1859 miners in Virginia woke at 3 am thinking glowing skies signaled sunrise. From the North Pole to Cuba, Hawaii, most of Mexico, parts of Central America and Colombia, China and Japan, brilliant auroras delivered a electromagnetic circus. All across Europe and North America telegraph wires sparked, stations caught fire, some operators reported sending and receiving messages even after disconnecting power lines.

150 years ago British astronomer Richard Carrington witnessed a unprecedented solar flare – today we know it as the Carrington Event. A similar event today would devastate life as we know it. Ponder weeks, months, possibly years without electricity, internet, ATMs, GPS, power to pump water and fuel, air, road or rail travel. Space weather is real and it matters.

Image result for carrington event

https://www.history.com/news/a-perfect-solar-superstorm-the-1859-carrington-event

On September 3rd space weather predicts a solar sector boundary crossing.

Our sun produces wind (currently 316.9 Km/second) blasts across the cosmos. Just like Earth, the Sun has a magnetic field – known as the interplanetary magnetic field (IMF).  Whipped into spiral rotation, wind driven IMF rotates in one direction. It divides into spiral sections pointing to and away from the sun along the ecliptic plane ( a direct line between Earth and the Sun). The edge of this swirling mass has a surface separating polarities of planetary and solar magnetism called the heliosphere current sheet.

http://spaceweather.com/glossary/imf.html

Earth’s magnetic field points north at the magnetopause (the point of contact between our magnetosphere and the IMF). If the IMF happens to point south at contact (scientific term, southward Bz) the two fields link causing partial cancellation of Earth’s magnetic field – in other words, opening a temporary door for solar energy to enter our atmosphere. Welcome solar sector boundary crossing – a phenomenon born of high solar wind and coronal mass ejections (CME’s – aka solar flares).

It takes 3 or 4 days for magnetism to sort itself out – during that time expect occasional high frequency radio wave disruption,  wonky GPS and cell phone service peppered with sudden power grid failure events. On the upside, we’re treated to kick ass auroras.

Space weather really does matter.

Magnetic Crochet


This is what happens when a solar eruption hurls energy our way at 11 million mph. Sunspot AR2017 erupted on March 29 with a healthy X-1 class flare – UV radiation ionized our upper atmosphere, resulting in a “ripple” in Earth’s magnetosphere. Known as a “magnetic crochet”, the disturbance occurred as AR2017 strutted her stuff –  geo-magnetic hiccups usually come knocking a few days after a flare – simultaneous “events” are rare.

For a short time radio signals were lost as static assaulted short wave operators.

Courtesy NASA’s Solar Dynamics Observatory – a video of AR2017 in action….

spaceweather.com

http://spaceweather.com/

AR2017 appears to have gotten it off her chest – simmering down with only a 55% chance of M and 20% chance of powerful X class activity in the next 24 hours. Dodging yet another cosmic EMP unscathed.

Scientists at Berkley have just released findings of a global “near miss” on July 23, 2012. A series of immense solar flares unleashed enough energy to rival the Carrington Event of 1859. Had the storm erupted 9 days earlier, our planet would have been in the cross hairs – global power grid failures, trillions of dollars in economic repercussions with an estimate of 4 – 10 years to recover.

http://www.universityherald.com/articles/8229/20140319/giant-solar-superstorm-narrowly-missed-earth-2-years-ago-electrical-damage-would-have-been-catastrophic.htm

 

 

Why So Uppity Mr. Sun?


The new year is arriving with a cosmic marching band. The sudden discovery of asteroid 2014 AA, a mere 24 hours before slamming the atmosphere and burning up over the Atlantic Jan. 2, now sunspot AR1944 is flexing gargantuan solar muscle.

This sunspot is so huge, it can be seen as a naked eye pock mark on the sun. Minding its manners for a day or two after showing up on Jan. 1, proved too much – AR1944 is in a tizzy, soon to be facing earth and by all appearances ready to kick ass. Waiting for a possible slap from a M4- class flare that erupted yesterday, could soon be over shadowed by a for more potent flare, coupled with AR 1944 facing earth.

NOAA scientists predict a 75% chance of M-class, and 30% of X-class flares within the next 24 hours. I know it’s difficult for those who don’t ponder solar activity to fathom the power of an earth directed super spot like AR 1944. I realize these predictions come and go, most often resulting in nothing more than a few airplanes altering course and spectacular auroras. Cry wolf enough times and soon nobody pays the slightest attention.

I think of these warnings as I would a tornado watch. All the elements are in place for a really bad day-it might take shape, or if we’re lucky just rain and hail like a banshee before the sunlight lets us get on with our day. Regardless, the warning is taken seriously and prepared for.

I’ve spoken about the Carrington event of 1859 till I’m blue in the face. If eyes don’t roll they glaze over as I recite the details; a solar flare witnessed by John Carrington, one that messed with our planet so much, telegraph stations burst into flames. A solar hit strong enough that if it happened today, could wipe out power for months. No cell phones, computers, ATMs, gasoline, water, heat, lights. Forget grocery stores or banks, forget your lights coming back anytime soon.

https://notestoponder.wordpress.com/2012/06/21/carrington-event/

So call me the little ponderer who cried wolf, or get your head wrapped around solar flares and all their ramifications. There isn’t a thing we can do to stop them, a major “event” will happen again – all we can do is get some emergency supplies together and not go bat shit when our precious cell phones go dark.A link to space weather warnings currently in effect, click on the colored symbols for descriptions….

http://www.swpc.noaa.gov/alerts/warnings_timeline.html