ARLA/CLUSTER: Actividade solar update. "Complex Eruption on the Sun Sends CME toward Earth"

[Carlos Mourato]

Caros colegas
...Bem que eu dizia se o Sol mandasse um sopro  na zona activa 1092 atingia
a Terra. Apesar de ser apenas uma flare C3,2, provocou uma CME esta manhã e
que deve chegar à terra lá para dia 5 de Agosto. Nada de anormal se deve
passar, no entanto algumas perturbações na propagação, com possibilidades de
fadeout dos sinais em HF podem acontecer. Auroras polares estão dadas como
certas.
Possiveis alertas de radio para o final da semana.

.*A frontsided halo CME erupted on August 1 around 08:00 UT, SOHO data was
not available at the time but STEREO data show that this event should arrive
to the Earth around August 5. It was related to the C3.2 flare from NOAA AR
11092 and to a large filament eruption in the northern solar hemisphere.*

---------- Forwarded message ----------
From: SpaceWeather.com <swlist  spaceweather.com>
Date: 2010/8/1
Subject: Complex Eruption on the Sun Sends CME toward Earth
To: "SpaceWeather.com" <swlist  spaceweather.com>


Space Weather News for August 1, 2010
http://spaceweather.com

GLOBAL ERUPTION:  During the early hours of August 1st, NASA's Solar
Dynamics Observatory recorded a complex global disturbance on the
Earth-facing side of the sun.  Most of the sun's northern hemisphere was
involved in the event, which included a long-duration C3-class solar flare,
a "solar tsunami," and a massive filament eruption.  As a result of these
blasts, a coronal mass ejection (CME) is heading toward Earth.
 High-latitude geomagnetic storms and auroras are possible when the cloud
arrives a few days hence.  Check http://spaceweather.com for movies and
updates.

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-- 
Best 73 from: regards from: CT4RK Carlos Mourato - Sines - Portugal

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