Affichage des archives de mardi, 11 septembre 2001
Rapport d'activité solaire
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Rapport d'activité solaire et géophysique 2001 Sep 11 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 254 publié à 2200Z le 11 Sep 2001IA. Analyse des régions solaires actives et activité du 10-2100Z au 11-2100Z Solar activity has been moderate. Several M-class
flares occurred during the period. Available optical imagery
suggests that newly numbered Region 9616 (S12E80) rotating on to the
east limb was the source of the largest event (M4/Sf at 11/2036
UTC), as well as an earlier M1 flare at 0704 UTC. An M2 flare at
11/0111 UTC appears to have emerged from Region 9608 (S27W07),
which, along with Region 9610 (S14E08), also produced several lesser
C-class flares during the period.
IB. Prévisions d'activité solaire
Solar activity is expected to be at
moderate to high levels for the next three days. All regions
discussed in section 1A above appear to be potential sources for
isolated major flares.
IIA. Résumé de l'activité géophysique du 10-2100Z au 11-2100Z
Geomagnetic activity was at quiet to active levels. Onset of high
speed stream effects appear to have developed from about 11/1200 UTC
through the end of the period.
IIB. Prévision de l'activité géophysique
Geomagnetic activity is
expected to be at unsettled to active conditions for the first two
days of the forecast period. A combination of coronal hole high
speed stream effects, and the expected arrival of an interplanetary
shock from CME activity on 9 September, are anticipated to keep
geomagnetic activity elevated for the next two days. Isolated minor
storm conditions are possible at higher latitudes. Conditions are
expected to be quiet to unsettled by day three.
III. Probabilité d'éruption solaire du 12 Sep au 14 Sep
| Classe M | 80% | 80% | 80% |
| Classe X | 15% | 15% | 15% |
| Proton | 10% | 10% | 10% |
| PCAF | yellow | ||
IV. Flux Penticton 10.7 cm
Observé 11 Sep 250 Prévisionnel 12 Sep-14 Sep 245/235/235 Moyenne des 90 derniers jours 11 Sep 163
V. Indice géomagnetique A
Observé Afr/Ap 10 Sep 005/005 Estimé Afr/Ap 11 Sep 011/010 Prévisionnel Afr/Ap 12 Sep-14 Sep 015/020-015/015-012/012
VI. Probabilités d'activité géomagnétique du 12 Sep au 14 Sep
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 20% | 20% | 15% |
| Tempête mineure | 15% | 15% | 10% |
| Tempête majeure/sévère | 05% | 05% | 05% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 30% | 25% | 20% |
| Tempête mineure | 20% | 15% | 10% |
| Tempête majeure/sévère | 05% | 05% | 05% |
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