[Ips-wgr] IPS Weekly Geo. Report (15 October 09)

rwc rwc at ips.gov.au
Thu Oct 15 13:17:53 EST 2009


SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 15 OCTOBER 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (06 OCTOBER - 14 OCTOBER)
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               
 06 Oct   1211 1011    3     
 07 Oct   1111 0121    3     
 08 Oct   1210 0011    2    
 09 Oct   1221 1111    4    
 10 Oct   1112 1111    3    
 11 Oct   2342 2212   10    
 12 Oct   1120 1021    3    
 13 Oct   2121 1112    4    
 14 Oct   1111 1011    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 (15 OCTOBER - 14 NOVEMBER)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 24 Oct to 25 Oct

Best Quiet Periods: 
 15 Oct to 22Oct,  26 Oct to 10 Nov.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: 
 Disturbed Periods: None.
 Best Quiet Periods: 15 Oct to 14 Nov.

Central Australian Regions: 
 Disturbed Periods: None.
 Best Quiet Periods: 15 Oct to 14 Nov.

Southern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 15 Oct to 14 Nov.

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

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