[Ips-wgr] IPS Weekly Geo. Report (01 September 11)

rwc rwc at ips.gov.au
Thu Sep 1 12:04:25 EST 2011


SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 01 SEPTEMBER 2011, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (23 AUGUST - 31 AUGUST)
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               
 23 Aug   2122 2332    8     
 24 Aug   2211 2202    5     
 25 Aug   2111 2221    5    
 26 Aug   1111 0122    3    
 27 Aug   2111 1211    4    
 28 Aug   2112 1122    5    
 29 Aug   2222 1111    5    
 30 Aug   2211 2111    4    
 31 Aug   1111 0100    1    

*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 (01 SEPTEMBER - 01 OCTOBER)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 4-5 Sep,  10-14 Sep,  22-25 Sep,  1 Oct.

Best Quiet Periods: 
 1-3 Sep,  7-9 Sep,  16-20 Sep,  27-29 Sep.  

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: 
 Disturbed Periods: None.

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 1-3 Sep,  7-9 Sep,  16-20 Sep,  27-29 Sep.  

Southern Australian Regions:
 Disturbed Periods: 4-5 Sep,  10-14 Sep,  22-25 Sep,  1 Oct.
 Best Quiet Periods: 1-3 Sep,  7-9 Sep,  16-20 Sep,  27-29 Sep.  

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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