Viewing archive of torsdag, 13 november 2003
Solaktivitetsrapport
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 för sol- och geofysisk aktivitet 2003 Nov 13 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 317 publicerat klockan 2200Z på 13 Nov 2003IA. Analys av solfläcksgrupper och solaktivitet från 12-2100Z till 13-2100Z Solar activity was moderate during the past 24 hours
due to two M-class flares, both from newly assigned Region 501
(N05E65), which is the return of old Region 484. The first was an
impulsive M1.6 at 0501 UTC. The second was a long duration M1.4 with
maximum at 0929 UTC. The M1.4 was associated with a fast CME (about
1100 km/s) that appeared to erupt off east limb. Limited
observations hindered analysis of the region, but it appears to have
sunspot area of at least 340 millionths.
IB. Prognos för solaktivitet
Solar activity is expected to be
moderate for the next three days, with Region 501 the most likely
source for activity. There is a slight chance for major flare
activity.
IIA. Sammanfattning av geofysisk aktivitet 12-2100Z till 13-2100Z
The geomagnetic field ranged from unsettled to minor storm levels,
with a period of major storm levels at high latitudes. Solar wind
signatures continue to show high speed, low density, high
temperature, with fairly regular oscillations of the z-component of
the interplanetary magnetic field (Bz), all of which strongly
suggest the enhanced geomagnetic activity is being driven by a
high-speed coronal hole solar wind stream. The greater than 2 MeV
electron fluxes were at high levels during the past 24 hours.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be mostly active with occasional minor storm periods for
14-15 November as the current disturbance persists. There should be
a slight decline to mostly active on 16 November.
III. Chans för solutbrott från 14 Nov till 16 Nov
| M-klass | 60% | 60% | 60% |
| X-klass | 10% | 10% | 10% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 13 Nov 102 Prognoserat 14 Nov-16 Nov 105/110/115 90 Day Mean 13 Nov 128
V. Geomagnetiskt A-index
Observerad Afr/Ap 12 Nov 020/026 Förväntat Afr/Ap 13 Nov 025/040 Prognoserat Afr/Ap 14 Nov-16 Nov 025/030-025/030-020/025
VI. Chanser för geomagnetisk aktivitet från 14 Nov till 16 Nov
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 40% | 40% | 40% |
| Små stormförhållanden | 30% | 30% | 25% |
| Svåra stormförhållanden | 10% | 10% | 10% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 30% | 30% |
| Små stormförhållanden | 30% | 30% | 25% |
| Svåra stormförhållanden | 25% | 25% | 20% |
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