Affichage des archives de dimanche, 24 mars 2002
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 2002 Mar 24 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 083 publié à 2200Z le 24 Mar 2002IA. Analyse des régions solaires actives et activité du 23-2100Z au 24-2100Z Solar activity remained at low levels. Region 9876
(S15E18) produced a long-duration C5/Sf flare at 24/1754 UTC. This
region showed a minor spot increase near its leader spots, but
showed an overall decrease in area due to a decrease in penumbral
coverage in its trailer spots. It remained moderately complex with
mixed polarities within its trailer portion. Region 9881 (S03W34)
showed minor spot growth and produced a C4/Sf flare at 24/2036 UTC.
Spot growth was also observed in Region 9880 (N07W08), but it
produced no optical flares. Region 9878 (N09E28) retained moderate
magnetic complexity, but showed no significant changes.
IB. Prévisions d'activité solaire
Solar activity is expected to be at
low to moderate levels. There's a fair chance for isolated,
low-level M-class activity during the period.
IIA. Résumé de l'activité géophysique du 23-2100Z au 24-2100Z
Geomagnetic field activity increased to active to major storm levels
during 24/0200 - 1200 UTC. Field activity decreased to active to
minor storm levels during 24/1200 - 1800 UTC, then decreased to
mostly unsettled levels for the rest of the period. The increase in
activity coincided with a period of sustained southward IMF Bz
(maximum southerly deflections to minus 12 nT (GSM), as measured by
NASA's ACE spacecraft). The greater than 10 MeV proton event that
began at 22/2020 UTC ended at 23/2030 UTC. The peak flux for this
event was 16 pfu at 23/1320 UTC.
IIB. Prévision de l'activité géophysique
Geomagnetic field activity is
expected to be at unsettled to active levels on 25 March. Quiet to
unsettled conditions are expected during the rest of the period.
III. Probabilité d'éruption solaire du 25 Mar au 27 Mar
| Classe M | 40% | 40% | 40% |
| Classe X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Flux Penticton 10.7 cm
Observé 24 Mar 175 Prévisionnel 25 Mar-27 Mar 170/165/165 Moyenne des 90 derniers jours 24 Mar 210
V. Indice géomagnetique A
Observé Afr/Ap 23 Mar 008/009 Estimé Afr/Ap 24 Mar 035/050 Prévisionnel Afr/Ap 25 Mar-27 Mar 015/020-010/010-010/010
VI. Probabilités d'activité géomagnétique du 25 Mar au 27 Mar
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 30% | 25% | 25% |
| Tempête mineure | 10% | 05% | 05% |
| Tempête majeure/sévère | 05% | 01% | 01% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 35% | 30% | 30% |
| Tempête mineure | 15% | 10% | 10% |
| Tempête majeure/sévère | 10% | 01% | 01% |
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