[Ips-wgr] IPS Weekly Geo. Report (28 November 02)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 28 NOVEMBER 2002, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (19 NOVEMBER - 27 NOVEMBER)
K indices are in UT (0-24). For conversion to local time:
AEST = UT + 10 hours; ACST = UT + 9.5 hours; AWST = UT + 8 hours
        Australian Region*              
 Date     K-INDICES    A               
 19 Nov   3233 2234   13     
 20 Nov   3223 2454   19    A weak (13nT) impulse was observed in the IPS
magnetomter data at 1108UT on 20 Nov. 
 21 Nov   5565 4334   38    
 22 Nov   3334 4333   18    
 23 Nov   3333 3323   14    
 24 Nov   3332 3333   14    
 25 Nov   3333 3423   15    
 26 Nov   3211 233-    9    
 27 Nov   5433 4224   21    

*estimated from real time data

The geomagnetic activity rose from 'unsettled to major storm'
level during the first three days of the period due to solar 
wind stream from a coronal hole. During the next 3 days the 
activity declined to 'quiet to unsettled' levels. The 
geomagnetic activity again rose to 'active' level towards 
the end of the period due to a CME observed on 24 November. 
An increase in the geomagnetic activity may be expected from
30 November to 3 December as a coronal hole is expected to 
take geo-effective position around this time.

2. FORECAST (28 NOVEMBER - 28 DECEMBER)
Disturbed Periods: 30 Nov to 03 Dec, 07 to 10 Dec, 12 Dec, 
                   15 Dec, 17 to 22 Dec, 24 Dec.

Best Quiet Periods: 05 to 06 Dec, 11 Dec, 13 to 14 Dec, 23 Dec.


PEASE NOTE:  
At this time of the solar cycle, space weather conditions 
are frequently determined by short timescale events, not 
able to be forecasted a week in advance. 

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