Viewing archive of torsdag, 31 augusti 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 Aug 31 2200 UTC
Skapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com

USAF/NOAA rapport för sol- och geofysisk aktivitet

SDF Nummer 244 publicerat klockan 2200Z på 31 AUG 2000

IA. Analys av solfläcksgrupper och solaktivitet från 30-2100Z till 31-2100Z

SOLAR ACTIVITY WAS LOW. REGION 9143 (S18W20) PRODUCED TODAY'S LARGEST EVENT, A C1/SF AT 0656Z. THIS GROUP HAS SHOWN SLIGHT DECAY DURING THE PAST 24 HOURS. REGION 9149 (N12E32) CONTINUES TO BE THE LARGEST GROUP ON THE DISK BUT WAS STABLE AND QUIET. NEW REGIONS 9150 (N11E51), 9151 (N05E42), AND 9152 (N17E75) ARE SMALL, STABLE GROUPS THAT WERE ASSIGNED DURING THE PAST 24 HOURS.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO BE PREDOMINANTLY LOW. THERE IS A SLIGHT-TO-FAIR CHANCE FOR AN ISOLATED M-CLASS EVENT DURING THE NEXT THREE DAYS. IIA. GEOPHYSICAL ACTIVITY SUMMARY 30/2100Z TO 31/2100Z: THE GEOMAGNETIC FIELD WAS UNSETTLED TO ACTIVE. SOLAR WIND OBSERVATIONS INDICATE THE CONTINUED INFLUENCE OF A HIGH-SPEED CORONAL HOLE STREAM. THE GREATER THAN 2 MEV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT EXCEEDED HIGH LEVELS DURING THE PAST 24 HOURS.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS EXPECTED TO BE UNSETTLED WITH A CHANCE FOR ISOLATED ACTIVE PERIODS DURING THE NEXT 24 HOURS AS EFFECTS FROM THE CORONAL HOLE STREAM ARE EXPECTED TO CONTINUE. PREDOMINANTLY UNSETTLED LEVELS ARE EXPECTED FOR THE SECOND AND THIRD DAYS.
III. Chans för solutbrott från 01 SEP till 03 SEP
M-klass30%30%30%
X-klass05%05%05%
Proton05%05%05%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observerad       31 AUG 163
  Prognoserat   01 SEP-03 SEP  165/163/161
  90 Day Mean        31 AUG 181
V. Geomagnetiskt A-index
OBSERVED AFR/AP 30 AUG  012/013
ESTIMATED AFR/AP 31 AUG  015/016
PREDICTED AFR/AP 01 SEP-03 SEP  015/015-012/012-010/010
VI. Chanser för geomagnetisk aktivitet från 01 SEP till 03 SEP
A. Medelhöga breddgrader
Aktivt30%30%25%
Små stormförhållanden15%15%10%
Svåra stormförhållanden05%05%05%
B. Höga breddgrader
Aktivt30%30%25%
Små stormförhållanden15%15%10%
Svåra stormförhållanden10%10%05%

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