[Ips-wgr] IPS Weekly Geo. Report (03 December 09)

rwc rwc at ips.gov.au
Thu Dec 3 12:49:42 EST 2009


SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 03 DECEMBER 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (24 NOVEMBER - 02 DECEMBER)
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               
 24 Nov   2212 3332    9     
 25 Nov   2332 2111    7     
 26 Nov   1222 1222    6    
 27 Nov   1221 1111    4    
 28 Nov   1222 1211    5    
 29 Nov   1111 1111    3    
 30 Nov   2111 2011    3    
 01 Dec   1110 0011    1    
 02 Dec   1111 0011    2    

*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 (03 DECEMBER - 02 JANUARY)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
  18-19 Dec.

Best Quiet Periods: 
 3 Dec to 17 Dec,  20 Dec to 29 Dec.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: Quiet 

Central Australian Regions: Mildly Disturbed 18-19Dec 

Southern Australian Regions: Disturbed 18-19Dec 

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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