Viewing archive of Saturday, 22 December 2001
Geophysical report
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.
Solar and Geophysical Activity Summary 2001 Dec 22 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 356 Issued at 0245Z on 22 Dec 2001 This report is compiled from data received at SWO on 21 DecA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
active. An increase in the solar wind speed began at around
21/1100Z. This increase was accompanied by sustained periods of
southward Bz resulting in unsettled to active periods at all
latitudes.
D. Stratwarm
STRATWARM ALERT EXISTS STRATWARM FRIDAY
STRATOSPHERIC WARMING IN THE MIDDLE AND UPPER STRATOSPHERE,
FURTHER INTENSIFYING WITH A REVERSED TEMPERATURE GRADIENT
BETWEEN 60N AND THE POLE IN THE UPPERMOST LEVELS EXPECTED
WITHIN THE NEXT 3 DAYS.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 234 SSN 215 Afr/Ap 011/011 X-ray Background C1.6 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.8e+05 GT 10 MeV 1.4e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 2.20e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 0 2 2 2 2 4 4 2 Planetary 1 2 2 2 3 4 4 3
F. Comments
None
All times in UTC
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