[Ips-wgr] IPS Weekly Geo. Report (03 April 03)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 03 APRIL 2003, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (25 MARCH - 02 APRIL)
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               
 25 Mar   1111 1212    4     
 26 Mar   1222 1223    7     
 27 Mar   4344 3334   21    
 28 Mar   3332 3434   17    
 29 Mar   3333 4434   19    
 30 Mar   3233 4444   20    
 31 Mar   3323 5543   23    
 01 Apr   3322 2333   12    
 02 Apr   2334 3333   15    

*estimated from real time data

The geomagnetic activity remained mostly 'quiet' during the
first two days of the period and then increased to 'unsettled
to active' level and remained at this level until 31 March, 
2003.  Minor storm periods of a few hours were also observed 
on 31 March. This rise in geomagnetic activity was due to a 
coronal hole activity. Due to a decline in the coronal hole 
activity since 01 April, the geomagnetic activity has been 
mostly showing a gradual decline.  However, a slight rise in 
geomagnetic activity was observed on 02 April for some time. 

2. FORECAST (03 APRIL - 03 MAY)
Disturbed Periods: 3, 4, 9-18, 23-30 April

Best Quiet Periods: 7, 20-22 April


PLEASE 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. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
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Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au 
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