Affichage des archives de lundi, 25 août 2003
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 2003 Aug 25 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 237 publié à 2200Z le 25 Aug 2003IA. Analyse des régions solaires actives et activité du 24-2100Z au 25-2100Z Solar activity was low. There were two C-class flares
observed during the past 24 hours, a C1 at 24/2337 UTC from Region
436 (N07W39) and a C3/1f at 0259 UTC from Region 442 (S13E30). The
C3 flare was long duration and was associated with an erupting
prominence (located near S09E38). The event was followed by an
associated coronal mass ejection which was observed off the
southeast limb in C3 coronagraph data. New Region 445 (N04E38) was
assigned today.
IB. Prévisions d'activité solaire
Solar activity is expected to be
predominantly low for the next three days. There is a slight chance
for an isolated M-class flare.
IIA. Résumé de l'activité géophysique du 24-2100Z au 25-2100Z
The geomagnetic field ranged from unsettled to minor storm levels.
Today's activity was initially at active levels in response to a
high speed solar wind stream. Activity increased to minor storm
levels from 0600-0900 UTC, but then backed off to mostly unsettled
levels from 0900 through the end of the day. The greater than 2 MeV
electron flux was at high levels during the past 24 hours.
IIB. Prévision de l'activité géophysique
The geomagnetic field is
expected to be unsettled with occasional active periods during the
next two days as the current disturbance persists. A decline to
mostly unsettled is expected on the third day.
III. Probabilité d'éruption solaire du 26 Aug au 28 Aug
| Classe M | 20% | 20% | 20% |
| Classe X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Flux Penticton 10.7 cm
Observé 25 Aug 117 Prévisionnel 26 Aug-28 Aug 120/120/125 Moyenne des 90 derniers jours 25 Aug 127
V. Indice géomagnetique A
Observé Afr/Ap 24 Aug 014/024 Estimé Afr/Ap 25 Aug 020/023 Prévisionnel Afr/Ap 26 Aug-28 Aug 015/015-015/012-012/012
VI. Probabilités d'activité géomagnétique du 26 Aug au 28 Aug
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 35% | 35% | 30% |
| Tempête mineure | 20% | 20% | 15% |
| Tempête majeure/sévère | 10% | 10% | 05% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 35% | 35% | 30% |
| Tempête mineure | 25% | 25% | 20% |
| Tempête majeure/sévère | 15% | 15% | 10% |
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