Affichage des archives de mercredi, 10 août 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Aug 10 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

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

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
10 Aug 2016	094	019
11 Aug 2016	094	013
12 Aug 2016	093	007

Bulletin

There are four active regions observed on the visible side of the solar disc. Solar activity is low with no C-class flares reported during last 24 hours. We expect solar activity to remain low, but C-class flares are still possible in the coming hours, in particular from NOAA AR 2574 and 2571 which presently have beta and beta-gamma configuration of their photospheric magnetic field. The filament eruption from the south-east quadrant, observed today at about 02:50 UT, was associated with rather narrow CME. No Earth directed CMEs were observed in the last 24 hours.

The Earth is still inside the fast solar wind with the average speed of about 650 km/s. The interplanetary magnetic field magnitude amounts about 5 nT. Due to several intervals of the negative value of the Bz component of the interplanetary magnetic field an interval of active geomagnetic conditions (K=4) was reported this morning by local station at Dourbes while NOAA reported only Kp=3. We expect unsettled to active geomagnetic conditions in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 079, sur la base de 15 stations.

Indices solaires pour 09 Aug 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	092
AK Chambon La Forêt	023
AK Wingst	015
Ap estimé	015
Nombre international de taches solaires estimé	073 - Basé sur 29 stations

Résumé des événements marquants

Données fournies par le Solar Influences Data analysis Center© - SIDC - Traité par SpaceWeatherLive

Toutes les heures sont indiquées en UTC

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