[Ips-wgr] IPS Weekly Geo. Report (26 August 10)

rwc rwc at ips.gov.au
Thu Aug 26 12:06:38 EST 2010


SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 26 AUGUST 2010, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (17 AUGUST - 25 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               
 17 Aug   1211 2221    5     
 18 Aug   2221 2001    4     
 19 Aug   1111 1111    3    
 20 Aug   1111 1112    3    
 21 Aug   1211 1111    3    
 22 Aug   1110 1001    1    
 23 Aug   1111 1113    4    
 24 Aug   3333 4323   15    
 25 Aug   3324 3322   13    

*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. Unsettled conditions with isolated active levels 24 and 25 Aug.

2. FORECAST (26 AUGUST - 25 SEPTEMBER)
Disturbed Periods: 
 26-27 Aug, 05 and 20-23 Sep

Best Quiet Periods: 
 28 Aug-04 Sep, 06-19 and 24-25 Sep

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 27 Aug-19 Sep, 23-25 Sep.

Central Australian Regions:
 Mildly Disturbed Periods: 26-28 Aug, 20-24 Sep.
 Best Quiet Periods: 29 Aug-19 Sep, 25 Sep.

Southern Australian Regions:
 Disturbed Periods: 26-28 Aug, 20-24 Sep.
 Best Quiet Periods: 29 Aug-19 Sep, 25 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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