Het archief bekijken van dinsdag 10 april 2001
Activiteitenrapport
Bij elke genoemde zonnevlam in dit rapport werd een schaalfactor toegepast door het Space Weather Prediction Center (SWPC). Vanwege de SWPC-schaalfactor worden zonnevlammen 42% kleiner gerapporteerd dan voor de wetenschappelijke data. De schaalfactor werd verwijderd uit onze gearchiveerde zonnevlamdata om de werkelijke fysieke eenheden weer te geven.
Rapport van de zonne- en geofysische activiteit van 2001 Apr 10 2200 UTC
Opgemaakt door de NOAA © SWPC en verwerkt door Poollicht.beUSAF/NOAA rapport van de zonneactiviteit en geofysische activiteit
SDF Nummer 100 gepubliceerd omstreeks 2200Z op 10 Apr 2001
IA. Analyse van de actieve zonneregio's en zonneactiviteit van 09-2100Z tot 10-2100Z
Solar activity remained at high levels. Region 9415
(S23W19) produced a long-duration X2/3b parallel-ribbon flare at
10/0526 UTC. This flare was associated with a 4000 SFU Tenflare,
Type II and IV radio sweeps, a 14-degree filament disappearance, and
a fast full-halo CME. Region 9415 showed decay in its trailer spots,
but maintained a strong magnetic delta configuration in its leader
portion, where a minor increase in spots was noted. Minor growth
occurred in Region 9417 (S08W39). It produced a C6/Sf at 10/1451
UTC. Minor growth was also observed in Region 9425 (S25W49). The
remaining regions were simply-structured and stable. No new regions
were assigned.
IB. Voorspelling zonneactiviteit
Solar activity is expected to be at
moderate to high levels. Region 9415 is expected to produce another
major flare during the period.
IIA. Samenvatting geofysische activiteit 09-2100Z tot 10-2100Z
Geomagnetic field activity ranged from quiet to active levels. A
greater than 10 MeV proton event followed today's X2/3b flare. It
began at 10/0850 UTC and was in progress as the period ended. The
greater than 10 MeV proton flux was near 100 PFU at the close of the
period and gradually increasing. A greater than 100 MeV proton flux
enhancement was also associated with the X2/3b flare. A polar cap
absorption (PCA) event began around 10/1200 UTC and continued as the
period ended. Thus far, maximum absorption associated with the PCA
event has been estimated at 8.5 dB. The greater than 2 MeV electron
flux reached high levels during the period.
IIB. Voorspelling geofysische activiteit
A major geomagnetic storm is
expected during 11 - 12 April in response to halo-CMEs observed on
09 - 10 April. Active to major storm levels are expected during this
disturbance with brief severe storm levels possible at high
latitudes. Unsettled to minor storm levels are expected on 13 April
as the storm subsides. The greater than 10 MeV proton event is
expected to continue through most of the period. The PCA event is
expected to end during the latter half of the period. The greater
than 2 MeV electron flux is expected to be at moderate to high
levels during the period.
III. Kans zonnevlammen van 11 Apr tot 13 Apr
Klasse M | 80% | 80% | 80% |
Klasse X | 25% | 25% | 25% |
Proton | 90% | 80% | 25% |
PCAF | In Progress
|
IV. Penticton 10.7 cm Flux
Geobserveerd 10 Apr 170
Voorspeld 11 Apr-13 Apr 165/165/160
90 dagen gemiddelde 10 Apr 167
V. Geomagnetische A index
Geobserveerd Afr/Ap 09 Apr 017/019
Geraamd Afr/Ap 10 Apr 013/009
Voorspeld Afr/Ap 11 Apr-13 Apr 050/040-050/090-020/030
VI. Kansen op geomagnetische activiteit van 11 Apr tot 13 Apr
A. Gemiddelde breedtegraad |
Actief | 15% | 15% | 35% |
Kleine storm | 25% | 25% | 15% |
Zware-ernstige stormcondities | 45% | 45% | 10% |
B. Hoge breedtegraad |
Actief | 15% | 25% | 35% |
Kleine storm | 30% | 30% | 20% |
Zware-ernstige stormcondities | 50% | 35% | 15% |
Alle tijden in UTC
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