:Product: 20000319SGAS.txt :Issued: 2000 Mar 19 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 079 ISSUED AT 0245Z ON 19 MAR 2000 THIS REPORT IS COMPILED FROM DATA RECEIVED AT SWO ON 18 MAR A. ENERGETIC EVENTS BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP 0224 0225 0225 1400 30 1510 1510 1510 120 1530 1530 1530 130 2047 2102 2116 8906 M2.1 II 2052 2057 2130 8906 S16W64 1N 730 41 2150 2154 2221 8909 S31W14 C4.5 1F 290 63 II 2313 2333 2353 8910 N11W09 M2.6 2N 83 2353 2357 0019 8906 S16W61 M3.9 1N 380 B. PROTON EVENTS: NONE C. GEOMAGNETIC ACTIVITY SUMMARY: THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. D. STRATWARM: STRATWARM ALERT EXISTS STRATWARM SATURDAY THE INTENSE WARMING OVER EASTERN EUROPE/SIBERIA AND THE WHOLE ARCTIC AT 10 HPA CONTINUES.WARM AIR EXTENDS TO NORTHERN CANADA. TEMPERATURE GRADIENT REVERSED BETWEEN 60N AND THE POLE IN THE MIDDLE AND UPPER STRATOSPHERE.MEAN ZONAL WIND AT 60N CONTINUOUSLY DECREASING AND IS FROM EAST AT 1 HPA. E. DAILY INDICES: (REAL-TIME PRELIMINARY/ESTIMATED VALUES) 10 CM 195 SSN 142 AFR/AP 006/007 X-RAY BACKGROUND C3.4 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 4.8E+05 GT 10 MEV 1.3E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 5.80E+06 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 1 0 1 1 2 3 2 2 PLANETARY 1 0 1 2 2 3 3 2 F. COMMENTS: NONE