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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2016 Aug 31 1327 UTC

Vorhersage des SIDC

Sonneneruptionen

C-class flares expected, (probability >=50%)

Geomagnetismus

Active conditions expected (A>=20 or K=4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
31 Aug 2016	099	010
01 Sep 2016	100	011
02 Sep 2016	099	021

Bulletin

Over the past 24 hours solar activity has been low. The largest flare was a C2.7 class flare, produced from a region that has just rotated onto the East solar limb. Active Region (AR) 2583 (Macintosh class:Cao; Mag. type:Beta) has been most active, but has now moved onto the West solar limb, and will soon pass over the limb. All other ARs have shown low levels of activity. Solar protons have remained at background levels over the past 24 hours. No Earth directed CMEs were detected. Solar activity is expected to remain low over the next 24 hours with a chance of C-class flares and a low probability of M-class flares. The solar wind speed has fluctuated between 400 to 480 km/s over the past 24 hours. The total magnetic field strength has slowly decreased from around 10 nT to 5 nT. The Bz component has oscillated between positive and negative, fluctuating between -10 and +8 nT. Geomagnetic conditions ranged between Kp index 2-4 (NOAA) and local K index 1-4 (Dourbes) over the past 24 hours. A small trans-equatorial coronal hole located at central latitudes created enhanced solar wind speeds and geo-activity yesterday evening. A large positive polarity Northern polar coronal hole extending toward low latitudes has just passed into the Western hemisphere. The resulting High Speed Stream (HSS) will enhance solar wind speeds in a couple of days, which may increase geomagnetic activity.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 077, basierend auf 28 Stationen.

Solarindizes für den 30 Aug 2016

Wolf-Zahl Catania	///
10cm Solarflux	100
AK Chambon La Forêt	026
AK Wingst	024
Geschätzer Ap-Wert	024
Geschätzte internationale Sonnenfleckenzahl	075 - Basierend auf 36 Stationen

Zusammenfassung auffälliger Ereignisse

Zur Verfügung gestellt vom Solar Influences Data Analysis Center© - SIDC - Verarbeitet von SpaceWeatherLive

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