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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2016 Mar 25 1230 UTC

Vorhersage des SIDC

Sonneneruptionen

Quiet conditions (<50% probability of C-class flares)

Geomagnetismus

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

Sonnenprotonen

Quiet

	10cm Fluss	Ap
25 Mar 2016	088	009
26 Mar 2016	089	019
27 Mar 2016	090	017

Bulletin

Over the past 24 hours solar activity has been very low. No significant flares have been recorded. All Active Regions (AR) have shown low levels of activity. AR 2524 (Macintosh class:Eso; Mag. type:Beta) produced the largest flare, a B3.3 class flare peaking at 17:02 UT on 24-Mar-2016, which had a very small eruption associated with it. AR 2526 recently rotated over the East limb, but due to its proximity to the limb it is still difficult to ascertain the magnetic complexity of the region, however it produced a couple of B-class flares yesterday and may have the potential for further activity. No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with a reasonable probability of C-class flares and a low probability of M-class flares.

The solar wind speed has been slowly increasing from around 450 to 550 km/s over the past 24 hours. The total magnetic field strength has fluctuated between around 5 and 10 nT, peaking at 14:00 UT yesterday. The Bz component was largely positive, fluctuating between -4 and +5 nT. Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. There is currently a positive polarity Northern polar coronal hole with a large extension to lower latitudes near disk center, as this region rotates further into the Western hemisphere the resulting high-speed stream (HSS) should enhance solar wind speeds at the Earth and as a consequence may increase geo-activity levels in the next 24 to 48 hours.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 030, basierend auf 14 Stationen.

Solarindizes für den 24 Mar 2016

Wolf-Zahl Catania	036
10cm Solarflux	087
AK Chambon La Forêt	013
AK Wingst	008
Geschätzer Ap-Wert	007
Geschätzte internationale Sonnenfleckenzahl	029 - Basierend auf 20 Stationen

Zusammenfassung auffälliger Ereignisse

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

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