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20020226SGAS.txt
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:Product: 20020226SGAS.txt
:Issued: 2002 Feb 26 0245 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Environment Center and the U.S. Air Force.
#
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 057 Issued at 0245Z on 26 Feb 2002
This report is compiled from data received at SWO on 25 Feb
A. 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
unsettled.
D. Stratwarm: STRATWARM ALERT EXISTS STRATWARM MONDAY
THROUGHOUT THE STRATOSPHERE STILL DISTURBED CIRCULATION PATTERN AFTER
THE MAJOR WARMING WITH THE WARM AIR REGION OVER THE POLAR REGION AND
ASIA AND A DISPLACED VORTEX OVER NORTHERN SIBERIA, LEADING TO A
REVERSED TEMPERATURE GRADIENT BETWEEN THE POLE AND 60 N FROM 30 HPA
UP TO 1HPA AND MEAN ZONAL EASTERLY WINDS AT 60 N FROM 3 HPA UP TO 1
HPA
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 211 SSN 237 Afr/Ap 007/007 X-ray Background C1.2
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 1.4e+05 GT 10 MeV 1.1e+04 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV 3.60e+05 e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices:
Boulder 2 1 2 2 2 3 2 3 Planetary 1 0 2 2 3 3 2 2
F. Comments: None