Affichage des archives de vendredi, 13 août 2004
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 2004 Aug 13 2210 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 226 publié à 2200Z le 13 Aug 2004IA. Analyse des régions solaires actives et activité du 12-2100Z au 13-2100Z Solar activity increased to high levels today. Region
656 (S13W22) produced an X1/1n major flare at 13/1812Z with an
associated 180 sfu Tenflare. Imagery from the LASCO instrument
remains insufficient at the time of this writing for determination
of CME activity. Region 656 also produced an M1/Sf flare that
occurred at 13/0729 and an M1/1f event that occurred at 13/1209Z,
neither of these flares had any significant CME activity observed on
LASCO imagery. Region 656 continues to exhibit a beta-gamma-delta
magnetic classification and did show a very slight growth in sunspot
area during the period. No new regions were numbered today.
IB. Prévisions d'activité solaire
Solar activity is expected to be at
moderate to high levels. Region 656 remains very capable of
producing further isolated major flare activity.
IIA. Résumé de l'activité géophysique du 12-2100Z au 13-2100Z
The geomagnetic field was at quiet to unsettled levels.
IIB. Prévision de l'activité géophysique
The geomagnetic field is
expected to be at unsettled to active levels on 14 August with the
anticipated arrival of a CME from the activity that was observed
late on 10 August. Isolated active periods may be possible on day
two (15 August) at higher latitudes due to lingering effects from
the expected shock. A return to predominantly quiet conditions is
expected for day three in lieu of further imagery from SOHO/LASCO.
III. Probabilité d'éruption solaire du 14 Aug au 16 Aug
| Classe M | 75% | 75% | 75% |
| Classe X | 20% | 20% | 20% |
| Proton | 15% | 15% | 15% |
| PCAF | green | ||
IV. Flux Penticton 10.7 cm
Observé 13 Aug 149 Prévisionnel 14 Aug-16 Aug 155/155/150 Moyenne des 90 derniers jours 13 Aug 107
V. Indice géomagnetique A
Observé Afr/Ap 12 Aug 006/009 Estimé Afr/Ap 13 Aug 006/010 Prévisionnel Afr/Ap 14 Aug-16 Aug 012/015-010/012-010/010
VI. Probabilités d'activité géomagnétique du 14 Aug au 16 Aug
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 25% | 20% | 20% |
| Tempête mineure | 10% | 05% | 05% |
| Tempête majeure/sévère | 05% | 01% | 01% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 35% | 25% | 20% |
| Tempête mineure | 20% | 10% | 05% |
| Tempête majeure/sévère | 10% | 05% | 01% |
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