Affichage des archives de lundi, 11 août 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Aug 11 1232 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
11 Aug 2014	108	010
12 Aug 2014	108	007
13 Aug 2014	108	013

Bulletin

There were two low C flares during the past 24 hours. The brightest flare (C1.6) was released by NOAA AR 2137 and peaked around 12:34 UT on August 10. In the next 48 hours, eruptive conditions (C flaring) are likely, especially from AR 2137, AR 2132, and from two unnumbered regions near the East limb. Over the last 24 hours, solar wind speed as observed by ACE increased from about 300 to about 420 km/s, probably under the influence of a coronal hole high speed stream. The magnitude of the Interplanetary Magnetic Field (IMF) varied between 8 and 11 nT. Over the past 24 hours, geomagnetic conditions were quiet (K Dourbes between 1 and 3; NOAA Kp between 1 and 2) except for one three-hour excursion of active conditions (K Dourbes = 4) between 18h and 21h UT on August 10. Quiet geomagnetic levels (K Dourbes < 4) are expected on August 11, 12, and 13, with possible excursions to active levels on August 13 due to the arrival of another coronal hole high speed stream.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 047, sur la base de 19 stations.

Indices solaires pour 10 Aug 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	108
AK Chambon La Forêt	017
AK Wingst	011
Ap estimé	010
Nombre international de taches solaires estimé	047 - Basé sur 18 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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