[Ips-wgr] IPS Weekly Geo. Report (01 May 03)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 01 MAY 2003, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (22 APRIL - 30 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               
 22 Apr   3334 3344   19     
 23 Apr   2333 3232   12     
 24 Apr   3234 4433   18    
 25 Apr   3444 3324   20    
 26 Apr   2233 3333   13    
 27 Apr   3322 2323   11    
 28 Apr   2334 2222   11    
 29 Apr   1221 4444   16    
 30 Apr   3444 3433   21    

*estimated from real time data

Extended period of coronal hole induced
activity observed this week.
Coronal hole high speed wind stream activity
also observed on 30 Apr and further activity expected
01 and 02 May.

2. FORECAST (01 MAY - 31 MAY)
Disturbed Periods: 
Predominately Unsettled to active levels due to large coronal
holes indicative of the declining phase of a solar cycle.
01-02 May
05-07 May
11-22 May

Best Quiet Periods: 
03-04 May
08-10 May
23-27 May

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
PO Box 1386                       | WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060