Viewing archive of fredag, 7 augusti 1998
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 1998 Aug 07 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 219 publicerat klockan 2200Z på 07 AUG 1998IA. Analys av solfläcksgrupper och solaktivitet från 06-2100Z till 07-2100Z SOLAR ACTIVITY CONTINUED LOW. THE DAY'S LARGEST FLARE
WAS A C4/SF AT 0722Z FROM REGION 8293 (S22E09). FIVE OTHER REGIONS
CONTRIBUTED SMALL FLARES DURING THE PERIOD, INCLUDING A C2/SF WITH
TYPE II SWEEP AT 1431Z FROM REGION 8296 (N16E44). THE DISK NUMBERS
SEVEN SPOTTED REGIONS, WITH 8293 STILL THE MOST IMPRESSIVE IN WHITE
LIGHT AND H-ALPHA. ITS MAGNETIC CONFIGURATION SIMPLIFIED SLIGHTLY
DURING THE PAST 24 HOURS, BUT POINT BRIGHTENINGS AND ARCH FILAMENTS
PERSIST. TWO NEW REGIONS WERE ASSIGNED; 8298 (N19E16) AND 8299
(N17E74).
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO PERSIST
AT LOW LEVELS. AN ISOLATED M-CLASS EVENT IS POSSIBLE FROM REGION
8293.
IIA. Sammanfattning av geofysisk aktivitet 06-2100Z till 07-2100Z
THE GEOMAGNETIC FIELD WAS AT UNSETTLED TO ACTIVE CONDITIONS AT MIDDLE
LATITUDES, AND UNSETTLED TO MAJOR STORM CONDITIONS AT HIGH
LATITUDES. YESTERDAY'S DISTURBANCE DECLINED DURING THE PERIOD, WITH
THE STRONGEST ACTIVITY OCCURRING DURING LOCAL NIGHTTIMES.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED TO ACTIVE DURING THE NEXT 24 HOURS. QUIET
TO UNSETTLED CONDITIONS SHOULD PREVAIL THE LAST TWO DAYS OF THE
FORECAST PERIOD.
III. Chans för solutbrott från 08 AUG till 10 AUG
| M-klass | 25% | 25% | 25% |
| X-klass | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observerad 07 AUG 145 Prognoserat 08 AUG-10 AUG 150/150/145 90 Day Mean 07 AUG 110
V. Geomagnetiskt A-index
OBSERVED AFR/AP 06 AUG 043/069 ESTIMATED AFR/AP 07 AUG 018/039 PREDICTED AFR/AP 08 AUG-10 AUG 010/018-005/010-005/008
VI. Chanser för geomagnetisk aktivitet från 08 AUG till 10 AUG
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 10% | 10% |
| Små stormförhållanden | 10% | 05% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 40% | 20% | 10% |
| Små stormförhållanden | 20% | 10% | 05% |
| Svåra stormförhållanden | 05% | 05% | 05% |
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