WSO 26 Octobre – Trou Coronale Massif sur Soleil – Part 1-2 – Steve Olson -_ 27_10_2016.
Steve Olson –
WSO 26 Octobre Partie 2 –
Trou Coronale Massif sur Soleil Breaking Rapport
WSO Oct 26 Part 2 –
Massive Coronal Hole on Sun Breaking Report
Ajoutée le 26 oct. 2016
So I go to Helioviewer to get a clip, and lo and behold the phenomona started up again on SDO…what is going on Sol?
Steve Olson –
WSO 26 Octobre – Trou Coronale Massif sur Sun –
est-il causé par proximité Objects? PARTIE 1
WSO Oct 26 – Massive Coronal Hole on Sun –
Is it Caused by Nearby Objects? PART 1
A massive ‘coronal hole’ on the sun is blasting Earth with solar storms that could CRIPPLE power grids
- Alert was issued by operator of the biggest power grid in the US
- Warnings based on space weather forecast and may have a global impact
- If charged particles from solar winds hit Earth’s atmosphere they can knock out communication and navigation equipment
Solar winds triggered a giant geomagnetic storm this week, raising fears that they could cripple power supplies.
The charged particles are coming from a coronal hole on the sun that is currently facing Earth.
If Earth’s magnetic field was hit by charged particles the effects could also include radar and satellite interference, causing problems phone and internet networks and navigation services.
Power grid operators in the US were put on alert yesterday following concerning space weather forecasts. But the impact could be felt all over the world.
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An image from today captured by NASA’s Solar Dynamic Observatory shows the extent of the coronal hole (the dark areas on the sun)
WHAT IS SOLAR WIND?
The sun and its atmosphere are made of plasma – a mix of positively and negatively charged particles which have separated at extremely high temperatures, that both carries and travels along magnetic field lines.
Material from the corona streams out into space, filling the solar system with the solar wind.
But scientists found that as the plasma travels further away from the sun, things change: The sun begins to lose magnetic control, forming the boundary that defines the outer corona – the very edge of the sun.
If charged particles from solar winds hit Earth’s magnectic field, this can cause problems for satellite and communication equipment.
Warnings were issued by the operator of the biggest power grid in the US, PJM Interconnection LLC, as well as by Midcontinent Independent System Operator, which manages high-voltage power lines across North America, reports Bloomberg.
These were the result of US Space Weather Prediction Center raising a ‘serious’ G3 level storm alert, though the alert was later downgraded to a less severe G2 storm.
‘Voltage corrections may be required, false alarms triggered on some protection devices’, said the U.S. Space Weather Prediction Center.
‘Drag may increase on low-Earth-orbit satellites, and corrections may be needed for orientation problems’.
The ‘moderate’ G2 warning remains in affect today.
The solar storms could potentially affect telecommunications and power infrastructures all over the globe.
The UK’s Met Office space weather forecast for today said: ‘Elevated solar winds are expected throughout the period, with G1-G2 minor to moderate geomagnetic storms forecast.’
Read more: http://www.dailymail.co.uk/sciencetech/article-3873644/A-massive-coronal-hole-sun-blasting-Earth-solar-storms-CRIPPLE-power-grids.html#ixzz4OO3rJfhM
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