Viewing archive of tisdag, 5 april 2005
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 2005 Apr 05 2210 UTC# Prepared jointly by the U.S. Dept. of Commerce, NOAA, #Space Environment Center and the U.S. Air Force. #
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 095 publicerat klockan 2200Z på 05 Apr 2005IA. Analys av solfläcksgrupper och solaktivitet från 04-2100Z till 05-2100Z Solar activity was low. A C1.1/SF flare occurred from
Region 747 (S05W47) at 05/2007 UTC. New Region 750 (S08E84) was
numbered today.
IB. Prognos för solaktivitet
Solar activity is expected to be very
low to low.
IIA. Sammanfattning av geofysisk aktivitet 04-2100Z till 05-2100Z
The geomagnetic field was at unsettled to severe storm levels. Major
storm periods at middle latitudes with severe storm periods at
higher latitudes were observed between 05/0000 UTC and 05/0600 UTC.
At approximately 0200 UTC on 05 April, solar wind speed at ACE
increased from 560 km/s to 650 km/s while temperature, density, and
the IMF decreased. In addition, Bz remained southward for several
hours following this sudden change. The greater than 2 MeV electron
flux at geosynchronous orbit reached high levels today.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be unsettled to active with isolated minor storm periods
possible on 06 April. On 07 and 08 April, quiet to unsettled
conditions are expected as the coronal hole high speed stream moves
out of geoeffective position.
III. Chans för solutbrott från 06 Apr till 08 Apr
| M-klass | 05% | 05% | 05% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 05 Apr 088 Prognoserat 06 Apr-08 Apr 090/090/090 90 Day Mean 05 Apr 096
V. Geomagnetiskt A-index
Observerad Afr/Ap 04 Apr 011/017 Förväntat Afr/Ap 05 Apr 022/050 Prognoserat Afr/Ap 06 Apr-08 Apr 012/015-008/010-005/005
VI. Chanser för geomagnetisk aktivitet från 06 Apr till 08 Apr
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 20% | 15% |
| Små stormförhållanden | 15% | 10% | 05% |
| Svåra stormförhållanden | 05% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 25% | 15% |
| Små stormförhållanden | 15% | 10% | 05% |
| Svåra stormförhållanden | 10% | 01% | 01% |
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