Re: [IRCA] Large Earth-Directed Solar Flare

["Thomas F Giella NZ4O" <nz4o@xxxxxxxxxxxxxxx>]

The post attached below is basically all hype. The solar flare was small and 
most of the ejected electrons and protons in the coronal mass ejection (CME) 
will miss our planet.

As far as a negative impact to MF AM broadcast band radio wave propagation 
conditions, some of the incoming protons could increase D layer absorption
of MF signals on high and mid latitude paths on the sun facing side of our 
planet. But it's doubtful that that will happen.

However some of the incoming electrons could increase E layer absorption 
(auroral conditions as we call them) of MF radio signals on high, mid and
low latitude paths. The low latitude path absorption would be caused by 
incoming electrons precipitating down magnetic field lines in a spiral 
fashion into the equatorial ring current.

The latter is doubtful and the former probable but in a minor way.

73 & GUD DX,
Thomas F. Giella, NZ4O
Lakeland, FL, USA
nz4o@xxxxxxxxxxxxxxx

NZ4O Daily MF/HF/6M Radio Wave Propagation Forecast Subscription Service: 
http://www.solarcycle24.org


"A long-lasting solar flare erupted from the sun early Saturday (Feb. 9), 
triggering an intense sun eruption aimed squarely at Earth. The solar storm, 
however, should not endanger satellites or astronauts in space, but could 
amplify auroras on Earth, NASA says. The solar eruption ?called a coronal 
mass ejection ?occurred at 2:30 a.m. EST (0730 GMT) on Saturday during a 
minor, but long-duration, flare. It hurled a wave of charged particles at 
Earth at speeds of about 1.8 million miles per hour (nearly 2.9 million 
km/h).

The sun eruption was captured in photos by the Solar and Heliospheric 
Observatory (SOHO), a joint mission by NASA and the European Space Agency."


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