Viewing archive of Monday, 18 December 2000
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 2000 Dec 18 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 353 Issued at 0245Z on 18 Dec 2000 This report is compiled from data received at SWO on 17 DecA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1141 1142 1142 120
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was mostly
quiet to unsettled with an isolated period of active conditions
observed during the 17/1500 - 1800Z period.
D. Stratwarm
STRATWARM ALERT EXISTS STRATWARM SUNDAY
STRONG STRATOSPHERIC WARMING IS IN PROGRESS.
STRONG ELONGATED POLAR VORTEX WITH A MAJOR CENTER
OVER NORTHERN CANADA AND A MINOR CENTER OVER RUSSIA
IS WEAKENING. AN ANTICYCLONE EXISTS OVER BOTH THE
NORTHERN PACIFIC AND THE NORTH ATLANTIC WITH THE
WARMEST AIR OVER THE LABRADOR SEA. THE WARM REGION
OVER CENTRAL ASIA IS WEAKENING.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 197 SSN 229 Afr/Ap 006/008 X-ray Background C1.2 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 3.6e+05 GT 10 MeV 1.1e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 8.90e+06 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 3 2 2 3 4 3 1 Planetary 1 2 1 2 3 3 3 1
F. Comments
None
All times in UTC
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