[Ips-wgr] IPS Weekly Geo. Report (10 July 08)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 10 JULY 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (01 JULY - 09 JULY)
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               
 01 Jul   2222 3111    6     
 02 Jul   1111 1001    2     
 03 Jul   1110 1101    2    
 04 Jul   0100 1200    1    
 05 Jul   2213 2111    6    
 06 Jul   1120 1010    2    
 07 Jul   1111 0011    2    
 08 Jul   1111 0011    2    
 09 Jul   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 for the past week. An increase in 
activity is expected for the forecast period due to a recurrent 
coronal hole. 

2. FORECAST (10 JULY - 09 AUGUST)
Disturbed Periods: 
Active on 13 Jul.

Best Quiet Periods: 
  16 Jul,  18 Jul to 21 Jul,   25 Jul,  27 Jul to 5 Aug.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: NA

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 10 Jul to 11 Jul,  16 Jul to 4 Aug.

Southern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods:  10 Jul,  16 Jul to 4 Aug.

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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