Affichage des archives de lundi, 21 avril 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Apr 21 1237 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
21 Apr 2014	158	015
22 Apr 2014	153	005
23 Apr 2014	148	005

Bulletin

There are currently 9 sunspot regions on the visible disk. Most are stable, with only NOAA 2034, 2035 and 2036 having a more complex beta- gamma structure. These three groups produced 7 of the 9 low-level C-class flares that were observed during the last 24 hours. Dynamic but small active regions NOAA 2038 and 2045 produced the two other C flares. Several CMEs were observed near and behind the northwest limb, related to continuing activity near NOAA 2032/2033. None of these CMEs had an earth- directed component. Further C-class flaring is expected, with a small chance on an isolated M-flare. Active to minor storm conditions were observed in response to the ICME related to the M7 flare. Solar wind speed gradually declined from 700 to 600km/s, with Bz varying mostly between +11 and -7nT. Geomagnetic conditions are expected to be quiet with an occasional active period as the geomagnetic field recovers from the ICME impact.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 115, sur la base de 13 stations.

Indices solaires pour 20 Apr 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	163
AK Chambon La Forêt	030
AK Wingst	023
Ap estimé	022
Nombre international de taches solaires estimé	137 - Basé sur 19 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

<< Aller à l'aperçu quotidien