Affichage des archives de mardi, 13 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 13 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 195 publié à 2200Z le 13 Jul 2004IA. Analyse des régions solaires actives et activité du 12-2100Z au 13-2100Z Solar activity was high. Region 646 (N13W60) emerged
rapidly during the past 24 hours and produced three major flares: an
M6 at 0017 UTC, an M5/1n at 0848 UTC, and an M6/1b at 1932 UTC.
CME's were observed in association with the first and second major
flares which were technically classified as halo events, although
the majority of the mass erupted off the northwest limb. Region 646
grew from 70 to 220 millionths and has some magnetic complexity
along a northeast-to-southwest inversion line. Region 649 (S10E64)
is the largest group on the disk with an area of 350 millionths. The
region produced numerous C-class events as well as two M-class
flares: an M2 at 1208 UTC and an M1/Sf at 1838 UTC.
IB. Prévisions d'activité solaire
Solar activity is expected to be
mostly moderate, with Region 646 and 649 the most likely sources for
activity. There is a fair chance for continued major flare activity,
particularly out of Region 646.
IIA. Résumé de l'activité géophysique du 12-2100Z au 13-2100Z
The geomagnetic field ranged from quiet to active levels during the
past 24 hours. Solar wind data countinue to show that the earth is
under the influence of a high-speed stream driven by a coronal hole
(with typical speeds today between 500 to 600 km/s). There was an
enhancement of greater than 10 MeV protons, which began around 0100
UTC and reached maximum values of about 1 PFU.
IIB. Prévision de l'activité géophysique
The geomagnetic field is
expected to be mostly unsettled for the next three days. Unsettled
with some active periods at high latitudes is expected on the third
day as a possible response to a glancing blow from one or the other
of today's CMEs.
III. Probabilité d'éruption solaire du 14 Jul au 16 Jul
| Classe M | 75% | 75% | 75% |
| Classe X | 15% | 15% | 15% |
| Proton | 15% | 15% | 15% |
| PCAF | green | ||
IV. Flux Penticton 10.7 cm
Observé 13 Jul 127 Prévisionnel 14 Jul-16 Jul 135/140/140 Moyenne des 90 derniers jours 13 Jul 098
V. Indice géomagnetique A
Observé Afr/Ap 12 Jul 012/013 Estimé Afr/Ap 13 Jul 012/015 Prévisionnel Afr/Ap 14 Jul-16 Jul 010/012-010/012-012/020
VI. Probabilités d'activité géomagnétique du 14 Jul au 16 Jul
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 30% | 30% | 35% |
| Tempête mineure | 15% | 15% | 15% |
| Tempête majeure/sévère | 05% | 05% | 05% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 35% | 35% | 40% |
| Tempête mineure | 20% | 20% | 20% |
| Tempête majeure/sévère | 05% | 05% | 05% |
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