[Ips-wgr] IPS Weekly Geo. Report (13 May 10)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 13 MAY 2010, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (04 MAY - 12 MAY)
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               
 04 May   3234 3223   13     
 05 May   2221 2232    7     
 06 May   1223 2222    7    
 07 May   2322 3222    9    
 08 May   2222 2212    6    
 09 May   1110 1011    2    
 10 May   1211 1111    3    
 11 May   2222 2111    5    
 12 May   1212 3101    5    

*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.


Mostly quiet to unsettled conditions. 

2. FORECAST (13 MAY - 12 JUNE)
Disturbed Periods: 
Active possible on 29 and 30 May.

Best Quiet Periods: 
 16 May to 19 May,  22 May to 28 May,  9 Jun to 12 Jun.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 13 May to 7 Jun.

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 13 May to 7 Jun.

Southern Australian Regions:
 Disturbed Periods:  29 May.
 Best Quiet Periods: 13 May to 26 May,  3 Jun to 7 Jun.

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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