[Ips-wgr] IPS Weekly Geo. Report (20 July 06)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 20 JULY 2006, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (11 JULY - 19 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               
 11 Jul   1111 2222    5     
 12 Jul   2223 3121    8     
 13 Jul   2222 1001    4    
 14 Jul   1212 4421   10    
 15 Jul   1211 2011    3    
 16 Jul   1110 0000    1    
 17 Jul   1110 1111    2    
 18 Jul   1111 0110    2    
 19 Jul   0110 0001    1    

*estimated from real time data

Quiet to unsettled conditions.

2. FORECAST (20 JULY - 19 AUGUST)
Disturbed Periods: 
active 31 Jul to 1 Aug.

Best Quiet Periods: 
 20 Jul to 24 Jul,  28 Jul to 30 Jul,  3 Aug to 5 Aug,   7 Aug,   9 Aug, 
11 Aug to 15 Aug.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 20 Jul to 15 Aug.

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 20 Jul to 24 Jul,  26 Jul to 29 Jul,  2 Aug to 15 Aug.

Southern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 20 Jul to 22 Jul,  26 Jul to 29 Jul,  2 Aug to 15 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.

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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