Viser arkiv af torsdag, 7 maj 1998

Solaktivitetsrapport

Ethvert nævnt soludbrud i denne rapport har en skaleringsfaktor anvendt af Space Weather Prediction Center (SWPC). På grund af SWPC-skaleringsfaktoren rapporteres soludbrud som 42 % mindre end for videnskabelige kvalitetsdata. Skaleringsfaktoren er blevet fjernet fra vores arkiverede soludbrudsdata for at afspejle de sande fysiske enheder.
Rapport om sol-geofysisk aktivitet 1998 May 07 2200 UTC
Udarbejdet af NOAA © SWPC og behandlet af SpaceWeatherLive.com

Fælles USAF/NOAA-rapport om sol- og geofysisk aktivitet

SDF nummer 127 Udstedt til 2200Z på 07 MAY 1998

IA. Analyse af solaktive områder og aktivitet fra 06-2100Z til 07-2100Z

SOLAR ACTIVITY WAS MODERATE. REGION 8214 (N26W47) PRODUCED TWO M-CLASS EVENTS TODAY: AN M2/1B FLARE AT 1116Z AND AN M1/SF AT 1350Z. THIS GROUP PRODUCED ADDITIONAL SUBFLARE LEVEL ACTIVITY THROUGHOUT THE DAY. THE PART OF THE REGION JUST EAST OF THE LARGEST SPOT APPEARS TO BE THE MOST ACTIVE. TOTAL SUNSPOT AREA FOR THIS REGION HAS BEEN STEADY OVER THE LAST THREE DAYS SUGGESTING THAT THE INITIAL GROWTH PHASE HAS ENDED. REGION 8218 (S22E61) HAS ROTATED MORE CLEARLY INTO VIEW AS A DAO SUNSPOT GROUP AND ALSO PRODUCED OCCASIONAL SUBFLARES INCLUDING A C4/SF AT 0739Z. REGION 8210 (S15W85) IS ROTATING QUIETLY AROUND THE WEST LIMB.
IB. Solaktivitetsprognose
SOLAR ACTIVITY IS EXPECTED TO BE MODERATE. THERE IS A GOOD CHANCE FOR CONTINUED M-CLASS ACTIVITY FROM EITHER OF REGION 8210 OR 8214. THERE CONTINUES TO BE A SLIGHT CHANCE FOR MAJOR FLARE ACTIVITY FROM THESE REGIONS AS WELL.
IIA. Geofysisk aktivitetsoversigt 06-2100Z til 07-2100Z
THE GEOMAGNETIC FIELD WAS MOSTLY QUIET TO UNSETTLED. A PERIOD OF MINOR SUBSTORMING WAS SEEN AT HIGH LATITUDES BETWEEN 0900-1330Z. THE PROTON EVENT AT >= 10 MEV THAT STARTED AT 06/0835Z ENDED AT 07/0140Z. THE GREATER THAN 2 MEV ELECTRON FLUX CONTINUES TO BE AT HIGH LEVELS.
IIB. Geofysisk aktivitetsprognose
THE GEOMAGNETIC FIELD IS EXPECTED TO BECOME DISTURBED TOMORROW DUE TO ARRIVAL OF TRANSIENT FLOW ASSOCIATED WITH THE CME EVENTS THAT OCCURRED ON 06 MAY AT 0002Z AND 0829Z. ACTIVITY IS EXPECTED TO BE AT MINOR TO MAJOR STORM LEVELS WITH THE POSSIBILITY FOR SOME SEVERE STORM INTERVALS AT HIGH LATITUDES. THE INTENSE PART OF THE DISTURBANCE SHOULD DIMINISH LATE TOMORROW, BUT SOME RESIDUAL SUBSTORMING IS LIKELY TO LINGER MIDWAY THROUGH THE SECOND DAY. UNSETTLED LEVELS ARE EXPECTED TO DOMINATE BY THE THIRD DAY.
III. Hændelsessandsynligheder 08 MAY til 10 MAY
Klasse M75%65%65%
Klasse X15%10%05%
Proton15%10%05%
PCAFYELLOW
IV. Penticton 10,7 cm Flux
  Observeret       07 MAY 123
  Forudsagt   08 MAY-10 MAY  120/115/110
  90 dages gennemsnit        07 MAY 107
V. Geomagnetiske A-indekser
OBSERVED AFR/AP 06 MAY  005/008
ESTIMATED AFR/AP 07 MAY  010/015
PREDICTED AFR/AP 08 MAY-10 MAY  045/050-015/025-010/015
VI. Geomagnetisk aktivitetssandsynlighed 08 MAY til 10 MAY
A. Mellemste breddegrader
Aktiv10%30%25%
Mindre storm30%25%10%
Større-alvorlig storm55%15%05%
B. Høje breddegrader
Aktiv10%20%25%
Mindre storm20%30%10%
Større-alvorlig storm65%25%05%

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