Affichage des archives de mercredi, 14 juillet 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 Jul 14 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 196 publié à 2200Z le 14 Jul 2004IA. Analyse des régions solaires actives et activité du 13-2100Z au 14-2100Z Solar activity was high. Region 646 (N12W72) produced
an impulsive M6/1n flare at 0523 UTC. The event was accompanied by
weak radio bursts, and there was no associated CME visible in the
LASCO coronagraph data. The group appears to be decaying and was
less active today than it was yesterday. Region 649 (S10E53)
continues to be the largest group on the disk and managed to produce
one M-flare, an M1/Sf at 1816 UTC. The size of the group is about
the same as yesterday, but the region does appear to have a small
magnetic delta configuration in the dominant trailer spots, and this
appears to be the primary location for occasional flare activity.
IB. Prévisions d'activité solaire
Solar activity is expected to be
moderate, with regions 646 and 649 the most likely sources. There
continues to be a slight chance for an additional, major flare event
from Region 646.
IIA. Résumé de l'activité géophysique du 13-2100Z au 14-2100Z
The geomagnetic field was quiet to unsettled. Solar wind speed showed
a steady decline during the past 24 hours with values around 450
km/s at forecast issue time.
IIB. Prévision de l'activité géophysique
The geomagnetic field is
expected to be mostly unsettled for the next 24 hours (15 July).
Generally unsettled with some active periods at high latitudes is
expected for the 2nd day (16 July). A return to predominantly
unsettled is expected for the 3rd day (17 July).
III. Probabilité d'éruption solaire du 15 Jul au 17 Jul
| Classe M | 60% | 60% | 60% |
| Classe X | 10% | 10% | 10% |
| Proton | 15% | 15% | 15% |
| PCAF | green | ||
IV. Flux Penticton 10.7 cm
Observé 14 Jul 138 Prévisionnel 15 Jul-17 Jul 140/140/135 Moyenne des 90 derniers jours 14 Jul 098
V. Indice géomagnetique A
Observé Afr/Ap 13 Jul 011/016 Estimé Afr/Ap 14 Jul 010/012 Prévisionnel Afr/Ap 15 Jul-17 Jul 010/012-012/020-010/012
VI. Probabilités d'activité géomagnétique du 15 Jul au 17 Jul
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 30% | 35% | 30% |
| Tempête mineure | 15% | 15% | 15% |
| Tempête majeure/sévère | 05% | 05% | 05% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 30% | 35% | 30% |
| Tempête mineure | 15% | 20% | 15% |
| Tempête majeure/sévère | 05% | 10% | 05% |
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