[Ips-wgr] IPS Weekly Geo. Report (28 August 08)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 28 AUGUST 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (19 AUGUST - 27 AUGUST)
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 Aug   2223 2221    7     
 20 Aug   2212 2111    5     
 21 Aug   1112 1011    3    
 22 Aug   1122 1111    4    
 23 Aug   1111 1111    3    
 24 Aug   1111 1111    3    
 25 Aug   1111 0011    2    
 26 Aug   1110 0111    2    
 27 Aug   2211 1011    3    

*estimated from real time data

NOTE: Indices may have been generated from data obtained in 
cooperation with the following organisations: Geoscience Australia, 
University of Newcastle Space Physics Group, Australian Government 
Antarctic Division and Space Environment Research Center, Japan.


Quiet to unsettled conditions.

2. FORECAST (28 AUGUST - 27 SEPTEMBER)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 5 Sep to 6 Sep,  14 Sep to 15 Sep.

Best Quiet Periods: 
 28 Aug to 4 Sep,  7 Sep to 13 Sep,  16 Sep to 23 Sep.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: NA

Central Australian Regions: NA

Southern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 28 Aug to 3 Sep,  8 Sep to 13 Sep,  16 Sep to 23 Sep.

Pc3 pulsations are high frequency (10-45 second period) variations 
of the Earths magnetic field. Daily pc3-indices are the daily sum of 
20 minute pc3-indices for that station and have been shown to be well 
correlated with rejection of high resolution aeromagnetic survey 
flight-line data.

PLEASE NOTE:
Geomagnetic activity can frequently be determined by short timescale 
solar events that cannot be forecast a week in advance, particularly
at solar maximum.

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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
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