[Ips-wgr] IPS Weekly Geo. Report (20 August 09)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 20 AUGUST 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (11 AUGUST - 19 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               
 11 Aug   2121 1211    4     
 12 Aug   1221 2111    4     
 13 Aug   1111 1111    3    
 14 Aug   1111 1011    2    
 15 Aug   1111 1101    2    
 16 Aug   1111 1001    2    
 17 Aug   1110 1111    2    
 18 Aug   1211 0111    3    
 19 Aug   1212 3232    8    

*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 (20 AUGUST - 19 SEPTEMBER)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
  20 Aug,   30 Aug,  2 Sep to 3 Sep,   5 Sep.

Best Quiet Periods: 
 21 Aug to 29 Aug,  31 Aug to 1 Sep,   4 Sep,  6 Sep to 15 Sep.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: Quiet

Central Australian Regions: Quiet. Mild activity possible 20 Aug.

Southern Australian Regions: Quiet. Mild activity possible 20 Aug,
30 Aug, 02-03 Sep, 05 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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