:Product: 19971223SGAS.txt
:Issued: 1997 Dec 23 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 357 ISSUED AT 0245Z ON 23 DEC 1997
THIS REPORT IS COMPILED FROM DATA RECEIVED AT SWO ON 22 DEC
A.  ENERGETIC EVENTS
BEGIN  MAX  END  RGN   LOC   XRAY  OP 245MHZ 10CM   SWEEP
0909 0910 0910                       120
B.  PROTON EVENTS:  NONE.
C.  GEOMAGNETIC ACTIVITY SUMMARY:  THE GEOMAGNETIC FIELD HAS BEEN
QUIET AT ALL LATITUDES FOR THE PAST 24 HOURS.
D.  STRATWARM:  STRATWARM EXISTS. AN INTENSE WARMING EXISTS OVER
SIBERIA, ALASKA, AND THE ADJACENT POLAR REGION WITH A TEMPERATURE
INCREASE OF MORE THAN 35 DEGREES CELSIUS DURING A WEEK OVER NORH
SIBERIA AND THE ADJACENT ARCTIC. TEMPERATURE GRADIENT REVERSED
BETWEEN 60N AND THE POLE AT 10HPA AND ABOVE IN THE UPPER
STRATOSPHERE.
E.  DAILY INDICES:
10 CM 097  SSN 041  AFR/AP 003/002   X-RAY BACKGROUND B1.9
DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS)
GT 1 MEV 2.6E+05   GT 10 MEV 1.8E+04 P/(CM2-STER-DAY)
GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES)
DAILY ELECTRON FLUENCE
GT 2 MEV 5.50E+05 E/(CM2-STER-DAY)
GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES)
3 HOUR K-INDICES:
BOULDER 0 0 0 0 1 0 0 0 PLANETARY 0 0 0 1 1 1 1 1
F.  COMMENTS:  NONE