Viewing archive of fredag, 25 mars 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 Mar 25 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 084 publicerat klockan 2200Z på 25 Mar 2005IA. Analys av solfläcksgrupper och solaktivitet från 24-2100Z till 25-2100Z Solar activity was low. Region 745 (N12E03) produced a
C1/Sf flare at 24/2344Z. This region is in a slow growth phase with
minor magnetic mixing. No other significant activity was observed on
the solar disk or limb.
IB. Prognos för solaktivitet
Solar activity is expected to be low
to very low. An isolated C-class flare is possible from Region 745.
IIA. Sammanfattning av geofysisk aktivitet 24-2100Z till 25-2100Z
The geomagnetic field was quiet to active with isolated minor storm
periods at high latitudes. The most disturbed geomagnetic conditions
followed short periods of southward IMF Bz to near -10 nT. A high
speed coronal hole stream rotated into a geoeffective position over
the past 24 hours. Solar wind speed began the period at just over
400 km/s, but increased to near 700 km/s by the end of the period.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to continue at quiet to active levels. Minor storm periods
are possible at high latitudes on 26 March. Mostly quiet to
unsettled levels with just isolated active periods are expected on
27 and 28 March as the high speed solar wind stream subsides.
III. Chans för solutbrott från 26 Mar till 28 Mar
| M-klass | 10% | 10% | 10% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 25 Mar 082 Prognoserat 26 Mar-28 Mar 080/080/080 90 Day Mean 25 Mar 098
V. Geomagnetiskt A-index
Observerad Afr/Ap 24 Mar 004/006 Förväntat Afr/Ap 25 Mar 010/016 Prognoserat Afr/Ap 26 Mar-28 Mar 012/020-010/015-008/012
VI. Chanser för geomagnetisk aktivitet från 26 Mar till 28 Mar
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 35% | 25% | 20% |
| Små stormförhållanden | 15% | 10% | 05% |
| Svåra stormförhållanden | 05% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 50% | 35% | 30% |
| Små stormförhållanden | 25% | 15% | 10% |
| Svåra stormförhållanden | 10% | 05% | 05% |
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