[Ips-wgr] IPS Weekly Geo. Report (08 September 11)

rwc rwc at ips.gov.au
Thu Sep 8 13:32:45 EST 2011


SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 08 SEPTEMBER 2011, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (30 AUGUST - 07 SEPTEMBER)
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               
 30 Aug   2211 2111    4     
 31 Aug   1111 0100    1     
 01 Sep   1110 0111    2    
 02 Sep   1111 1012    3    
 03 Sep   3323 2212    9    
 04 Sep   2211 2321    6    
 05 Sep   1211 1232    6    
 06 Sep   2232 2112    7    
 07 Sep   2212 2112    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.


Quiet to unsettled conditions.

2. FORECAST (08 SEPTEMBER - 08 OCTOBER)
Disturbed Periods: 
active on 9-10 Sep.

Best Quiet Periods: 
 14-18 Sep,  20-24 Sep,  26-29 Sep,  2-4 Oct.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions:
 Disturbed Periods: None.

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 8-9 Sep, 14 Sep to 4 Oct.

Southern Australian Regions: 
 Disturbed Periods: 11-13 Sep
 Best Quiet Periods: 8-9 Sep, 15 Sep to 4 Oct.

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.

IPS Radio and Space Services        email: asfc at ips.gov.au
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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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