Viewing archive of onsdag, 12 juli 2000
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 2000 Jul 12 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 194 publicerat klockan 2200Z på 12 JUL 2000IA. Analys av solfläcksgrupper och solaktivitet från 11-2100Z till 12-2100Z SOLAR ACTIVITY WAS HIGH. REGION 9077 (N17E16) PRODUCED
THE FIRST OF SEVERAL SIGNIFICANT EVENTS FOR THE PERIOD. IT PRODUCED
AN M1/1N AT 12/0502Z WITH MINOR CENTIMETRIC BURSTS. THIS WAS
FOLLOWED BY AN X1/2B AT 12/1037Z WITH AN ASSOCIATED 390 SFU TENFLARE
AND TYPE IV RADIO SWEEP. REGION 9070 (N19W63) PRODUCED AN M1/SF AT
12/1655Z. REGION 9077 PRODUCED ANOTHER MAJOR FLARE AT 12/1849Z,
AN M5/2F WITH AN ASSOCIATED 230 SFU TENFLARE. AN OPTICALLY
UNCORRELATED TYPE II RADIO SWEEP OCCURRED AT 12/2014Z. BOTH REGIONS
9070 AND 9077 MAINTAIN COMPLEX MAGNETIC DELTA CONFIGURATIONS. AN
IMPRESSIVE CME WAS OBSERVED AROUND 12/0200Z FROM A REGION ON OR
BEHIND THE SOUTHEAST LIMB OF THE SUN.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO REMAIN
AT HIGH LEVELS. EXPECT FREQUENT C-CLASS FLARES WITH AN ISOLATED
CHANCE FOR A MAJOR FLARE FROM REGION 9070. REGION 9077 WILL LIKELY
CONTINUE TO PRODUCE MAJOR FLARES.
IIA. Sammanfattning av geofysisk aktivitet 11-2100Z till 12-2100Z
THE GEOMAGNETIC FIELD WAS AT QUIET TO MINOR STORM LEVELS. MINOR
STORMING WAS OBSERVED EARLY IN THE PERIOD AS YESTERDAY'S DISTURBANCE
SUBSIDED. MOSTLY MINOR TO UNSETTLED CONDITIONS WERE OBSERVED FOR THE
REMAINDER OF THE PERIOD. THE GREATER THAN 10 MEV PROTONS REMAIN
ENHANCED BUT HAVE NOT YET CROSSED ALERT THRESHOLD.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS
EXPECTED TO BEGIN THE PERIOD AT QUIET TO ACTIVE CONDITIONS. MINOR TO
MAJOR STORM CONDITIONS ARE EXPECTED TO DEVELOP LATE ON DAY ONE AS A
RESULT OF CME'S OBSERVED ON 10-11 JULY. CONDITIONS ARE EXPECTED TO
RETURN TO UNSETTLED TO ACTIVE LEVELS ON DAY THREE OF THE FORECAST
PERIOD. THE GREATER THAN 10 MEV PROTONS FLUX ARE STILL EXPECTED TO
CROSS EVENT THRESHOLD DURING THE PERIOD.
III. Chans för solutbrott från 13 JUL till 15 JUL
| M-klass | 90% | 90% | 90% |
| X-klass | 50% | 50% | 50% |
| Proton | 20% | 20% | 20% |
| PCAF | YELLOW | ||
IV. Penticton 10.7 cm Flux
Observerad 12 JUL 230 Prognoserat 13 JUL-15 JUL 225/220/200 90 Day Mean 12 JUL 183
V. Geomagnetiskt A-index
OBSERVED AFR/AP 11 JUL 031/031 ESTIMATED AFR/AP 12 JUL 015/018 PREDICTED AFR/AP 13 JUL-15 JUL 025/025-050/050-015/020
VI. Chanser för geomagnetisk aktivitet från 13 JUL till 15 JUL
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 20% | 15% |
| Små stormförhållanden | 25% | 40% | 10% |
| Svåra stormförhållanden | 30% | 40% | 07% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 20% | 20% |
| Små stormförhållanden | 30% | 40% | 15% |
| Svåra stormförhållanden | 40% | 40% | 10% |
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