[Ips-wgr] IPS Weekly Geo. Report (24 July 03)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 24 JULY 2003, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (15 JULY - 23 JULY)
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               
 15 Jul   3424 3134   17     
 16 Jul   3455 4334   27     
 17 Jul   3324 3333   15    
 18 Jul   3221 1233    9    
 19 Jul   3323 4334   17    
 20 Jul   3332 3223   12    
 21 Jul   2211 1122    5    
 22 Jul   2122 1122    5    
 23 Jul   2222 1322    7    

*estimated from real time data

A coronal-hole induced high speed solar wind stream produced mostly
unsettled to active geomagnetic conditions early in the week, with 
conditions becoming quiet to unsettled for the second half of the 
week. At the time of report issue, the coronal hole wind stream 
effects have declined and mostly quiet conditions are expected for 
the next few days. A minor shock in solar wind parametrs was 
observed at 23/1400UT, possibly produced by a disappearing solar 
filament observed at 21/0900UT. An isolated period of magnetic 
storm conditions at high latitudes followed.

2. FORECAST (24 JULY - 23 AUGUST)
Disturbed Periods: 27 Jul-01 Aug, 07-08 Aug, 11-16 Aug.

Best Quiet Periods: 02-06 Aug.


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 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060 

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