Viewing archive of Thursday, 22 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 22 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 053 Issued at 0245Z on 22 Feb 2001 This report is compiled from data received at SWO on 21 FebA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1411 1427 1440 9354 S08W29 C6.2 Sf 2400
B. Proton Events
None
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to
unsettled. A non-Earth directed CME occurred yesterday behind the
NE limb.
D. Stratwarm
STRATWARM ALERT/WEDNESDAY/STRATWARM EXISTS.
MAJOR WARMING CONTINUES.
A LARGE WARM AREA COVERS THE POLAR REGION,
SIBERIA EUROPE AND THE EASTERN ATLANTIC,
LEADING TO A REVERSED TEMPERATURE GRADIENT
BETWEEN 60N AND THE POLE UP TO 10 HPA.
A POLAR ANTICYCLONE AND A SPLIT, SOUTHWARD
DISPLACED VORTEX LEAD TO NET EASTERLY WINDS
AT LATITUDE 60N THROUGHOUT THE STRATOSPHERE.
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 144 SSN 119 Afr/Ap 006/006 X-ray Background B3.5 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 5.0e+04 GT 10 MeV 1.1e+04 p/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) Daily Electron Fluence GT 2 MeV 5.90e+05 e/(cm2-ster-day) (GOES-8 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 2 1 2 2 3 2 1 1 Planetary 2 1 1 2 3 2 2 2
F. Comments
None
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