Affichage des archives de lundi, 11 juillet 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Jul 11 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
11 Jul 2016	094	007
12 Jul 2016	093	008
13 Jul 2016	091	007

Bulletin

Over the past 24 hours solar activity has been low. No significant flares have been recorded. Active Region (AR) 2564 (Macintosh class:Dai; Mag. type:Beta-Gamma) has been quiet, but has shown some evidence of flux emergence in HMI magnetogram observations, this may increase flaring activity. No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have remained at background levels over the past 24 hours. There is currently a large northern polar coronal hole extending to low latitudes located near central longitudes. This region will rotate into the Western hemisphere in the coming days. Solar activity is expected to remain low over the next 24 hours with a high probability of C-class flares and a low probability of M-class flares.

The solar wind speed has decreased from around 580 to 500 km/s over the past 24 hours. The total magnetic field strength has fluctuated around 5 nT. The Bz component fluctuated around 0 nT, ranging between -5 and +4 nT. Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. The large northern polar coronal hole, will move into the Western hemisphere over the coming days and may increase solar wind speeds. However, over the next couple of days solar wind speeds are expected to decrease, with a small chance of a small high speed stream (HSS) hitting the Earth. Geomagnetic activity is expected to remain quiet, with the small chance of the HSS enhancing activity.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 065, sur la base de 24 stations.

Indices solaires pour 10 Jul 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	094
AK Chambon La Forêt	017
AK Wingst	014
Ap estimé	013
Nombre international de taches solaires estimé	050 - 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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