Surprise Solar Event and Galactic Cosmic Rays Associated with Ozone Hole Fluctuation

The fast flow associated with the northern extension Coronal Hole, which crossed the central meridian on Nov 4th has now arrived to Earth. The solar wind speed has increased up to the current value of 620 km/s, and the Bz component of the interplanetary magnetic field was observed mainly southward for a long period of time of more than 3 hours.

This strong southward field, concurrent with a fast solar wind produced a geomagnetic storm. NOAA reported the Kp event at level 6 and local stations at Dourbes reported K=5.  The high speed stream is expected to persist until Nov 10th and further minor to moderate geomagnetic storms are highly possible.

Ozone Fluctuation Caused by Galactic Cosmic Rays… 

Recent studies have presented evidence indicating cosmic rays, rather than solar winds play a dominant role in breaking down ozone-depleting molecules and then ozone. Cosmic rays are energy particles originating in space.

Ozone is a gas mostly concentrated in the ozone layer, a region located in the stratosphere several miles above the Earth’s surface. It absorbs almost all of the Sun’s high-frequency ultraviolet light, which is potentially damaging to life and causes such diseases as skin cancer and cataracts. The Antarctic ozone hole is larger than the size of North America.

More on Galactic Cosmic Rays Effect to Earth Coming Next…

 

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