Viewing archive of onsdag, 16 juli 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 Jul 16 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 197 publicerat klockan 2200Z på 16 Jul 2003IA. Analys av solfläcksgrupper och solaktivitet från 15-2100Z till 16-2100Z Solar activity was low. Today's activity consisted of
three, low-level C-class flares from Region 410 (S12E28). This group
showed emerging flux and has developed some magnetic complexity.
However, the field intensity and sunspot area are still relatively
small. Region 409 (N16E27) continues to be the largest group on the
disk but showed overall decay and some simplification. Region 409
was quiet and stable during the past 24 hours. Two new regions were
assigned today: Region 412 (N16E19) and Region 413 (N18E49).
IB. Prognos för solaktivitet
Solar activity is expected to be
predominantly low. There continues to be a chance, however, for an
isolated M-class event over the next three days. Region 409 is the
most likely source for energetic flares, but Region 410 might also
produce an M-flare if the current growth trend continues.
IIA. Sammanfattning av geofysisk aktivitet 15-2100Z till 16-2100Z
The geomagnetic field ranged from active to major storm levels. An
initially active field attained storm levels after 0300 UTC and
continued at storm levels through 1500 UTC. Conditions returned to
active levels from 1500 UTC through the end of the period. The
increase in activity was associated with a slight increase in solar
wind speed (600 to 650 km/s) and a noticeable increase in total
magnetic field in the solar wind (ranging from 10 to 15 nT). The
solar wind signatures are consistent for the most part with a high
speed solar wind stream originating from a favorably positioned
coronal hole.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be mostly active with minor storm periods during the
next 24 hours as the current disturbance persists. A decrease to
unsettled to active is expected on the second and third days as the
high speed solar wind should gradually decline.
III. Chans för solutbrott från 17 Jul till 19 Jul
| M-klass | 35% | 35% | 35% |
| X-klass | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 16 Jul 133 Prognoserat 17 Jul-19 Jul 130/130/125 90 Day Mean 16 Jul 126
V. Geomagnetiskt A-index
Observerad Afr/Ap 15 Jul 015/027 Förväntat Afr/Ap 16 Jul 025/045 Prognoserat Afr/Ap 17 Jul-19 Jul 020/030-015/020-015/015
VI. Chanser för geomagnetisk aktivitet från 17 Jul till 19 Jul
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 40% | 30% | 30% |
| Små stormförhållanden | 30% | 25% | 25% |
| Svåra stormförhållanden | 10% | 05% | 05% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 30% | 30% |
| Små stormförhållanden | 45% | 30% | 30% |
| Svåra stormförhållanden | 15% | 10% | 10% |
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