[Ips-wgr] IPS Weekly Geo. Report (23 September 10)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 23 SEPTEMBER 2010, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (14 SEPTEMBER - 22 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               
 14 Sep   1232 1322    8     
 15 Sep   3213 1001    5     
 16 Sep   1211 1232    6    
 17 Sep   2332 2212    8    
 18 Sep   2211 2111    4    
 19 Sep   2211 1111    4    
 20 Sep   1111 1221    4    
 21 Sep   2322 0002    5    
 22 Sep   2210 0001    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 (23 SEPTEMBER - 23 OCTOBER)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 23 Sep to 24 Sep,   29 Sep,  3 Oct to 5 Oct, 19 Oct.

Best Quiet Periods: 
 25 Sep to 28 Sep,  30 Sep to 2 Oct,  6 Oct to 10 Oct,  12 Oct to 13 Oct, 
15 Oct to 16 Oct.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 24 Sep to 18 Oct.

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 23 Sep to 19 Oct.

Southern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 24 Sep to 19 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
PO Box 1386                         WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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