Viewing archive of Sunday, 18 February 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 Feb 18 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 049 Issued at 0245Z on 18 Feb 2001 This report is compiled from data received at SWO on 17 FebA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None
B. Proton Events
None
C. Geomagnetic Activity Summary
Quiet
D. Stratwarm
STRATWARM ALERT EXISTS STRATWARM SATURDAY
MAJOR WARMING CONTINUES. AN ANTICYCLONE EXTENDING FROM
THE CANADIAN ARCTIC TO WESTERN SIBERIA AND A SPLIT VORTEX
LEAD TO NET EASTERLY WINDS AT LATITUDE 60N THROUGHOUT THE
STRATOSPHERE, ALTHOUGH THE TEMPERATURE GRADIENT BETWEEN
60NB AND THE POLE IS NO LONGER REVERSED IN THE UPPER
STRATOSPHERE.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 130 SSN 095 Afr/Ap 002/003 X-ray Background B1.9 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 2.7e+05 GT 10 MeV 1.0e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 5.60e+07 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 0 0 0 1 1 2 1 1 Planetary 1 0 0 1 1 2 2 1
F. Comments
None
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