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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2016 Aug 04 1249 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
04 Aug 2016	075	019
05 Aug 2016	075	019
06 Aug 2016	075	007

Bulletin

Solar activity was very low. No C flares were observed. Solar activity is expected to remain very low (no C flaring) for the next 24 hours. A filament eruption in the NE quadrant was observed by PROBA2/SWAP and Big Bear H alpha between about 16h and 19h UT on August 3. An associated CME was first registered by LASCO C2 at 18:12 UT. Further analysis is required to evaluate the possible geo-effects of this CME. Solar wind speed measured by DSCOVR suddenly increased from about 430 to 580 km/s between 12:00 UT and 13:50 UT on August 3, indicating the arrival of a high speed stream associated with a positive coronal hole. This implies that the earlier solar wind enhancements on August 2 and 3 were most probably due to the arrival of the CME of July 28. Meanwhile, solar wind speed has gradually increased to 620 km/s while the magnitude of the Interplanetary Magnetic Field has been around 5 nT. In the past 24 hours, quiet to minor storm geomagnetic levels were registered (K Dourbes between 2 and 5; NOAA Kp between 3 and 4). Active levels (K Dourbes = 4) are possible on August 4 and 5 under the influence of the coronal hole high speed stream, with a slight chance for a minor geomagnetic storm (K Dourbes = 5). A return to quiet to unsettled geomagnetic conditions is expected on August 6.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 007, basierend auf 16 Stationen.

Solarindizes für den 03 Aug 2016

Wolf-Zahl Catania	///
10cm Solarflux	075
AK Chambon La Forêt	046
AK Wingst	037
Geschätzer Ap-Wert	040
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 24 Stationen

Zusammenfassung auffälliger Ereignisse

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

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