Viewing archive of onsdag, 24 september 1997

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 1997 Sep 24 2200 UTC
Skapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com

USAF/NOAA rapport för sol- och geofysisk aktivitet

SDF Nummer 267 publicerat klockan 2200Z på 24 SEP 1997

IA. Analys av solfläcksgrupper och solaktivitet från 23-2100Z till 24-2100Z

SOLAR ACTIVITY BECAME HIGH DURING THE PERIOD. REGION 8088 (S28E11) PRODUCED AN IMPULSIVE M5/1B AT 24/0248Z WITH STRONG TYPE II AND IV SWEEP EVENTS. THE TYPE IV WAS OBSERVED FROM 24/0248-0615Z. THE 2695 MHZ BURST WITH THIS EVENT WAS 650 F.U. REGION 8088 ALSO PRODUCED AN M3/SF AT 24/1106Z WITH A STRONG TYPE II AND MODERATE INTENSITY TYPE IV. MINOR CENTIMETRIC BURSTS ACCOMPANIED THIS EVENT. THIS REGION ALSO PRODUCED A C8/1N AT 24/1834Z WITH A WEAK TYPE II. REGION 8088 ALSO PRODUCED A LONG DURATION C1.5 EVENT FROM 23/2136-2350Z. CORONAL MASS EJECTIONS AND VERY LARGE CORONAL MORETON WAVES WERE OBSERVED WITH THIS LONG DURATION EVENT AND THE M5 MENTIONED ABOVE. REGION 8088 CONTINUES TO GROW AT A SLOW TO MODERATE PACE AND IS NOW MAGNETICALLY CLASSIFIED AS A BETA-GAMMA REGION
IB. Prognos för solaktivitet
SOLAR ACTIVITY SHOULD BE AT A LOW TO MODERATE LEVEL FOR THE NEXT THREE DAYS WITH REGION 8088 AS THE SOURCE REGION. OBVIOUSLY, THIS REGION IS CAPABLE OF PRODUCING MID-LEVEL M-CLASS EVENTS. STABILIZATION IN THIS REGION COULD RESULT IN AN ABRUPT HALT TO FLARE ACTIVITY DUE TO ITS SMALL TO MODERATE WHITE LIGHT AREA.
IIA. Sammanfattning av geofysisk aktivitet 23-2100Z till 24-2100Z
THE GEOMAGNETIC FIELD WAS QUIET.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS FORECAST TO BE QUIET TO UNSETTLED FOR 25 SEP AND THE FIRST HALF OF 26 SEP. THE MASS EJECTIONS MENTIONED ABOVE ARE EXPECTED TO IMPACT THE EARTH ON LATE 26 SEP AND CONTINUE THROUGH 27 SEP. ACTIVE TO MAJOR STORM CONDITIONS SHOULD OCCUR DURING THAT PERIOD. ISOLATED SEVERE STORM INTERVALS ARE POSSIBLE DURING THAT TIME, ESPECIALLY AT HIGH LATITUDES.
III. Chans för solutbrott från 25 SEP till 27 SEP
M-klass40%40%40%
X-klass10%10%10%
Proton10%10%10%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observerad       24 SEP 093
  Prognoserat   25 SEP-27 SEP  095/096/097
  90 Day Mean        24 SEP 081
V. Geomagnetiskt A-index
OBSERVED AFR/AP 23 SEP  005/004
ESTIMATED AFR/AP 24 SEP  004/004
PREDICTED AFR/AP 25 SEP-27 SEP  010/015-025/025-040/040
VI. Chanser för geomagnetisk aktivitet från 25 SEP till 27 SEP
A. Medelhöga breddgrader
Aktivt15%40%30%
Små stormförhållanden05%15%30%
Svåra stormförhållanden01%05%15%
B. Höga breddgrader
Aktivt20%40%30%
Små stormförhållanden10%20%35%
Svåra stormförhållanden01%10%20%

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