[Ips-wgr] IPS Weekly Geo. Report (24 July 08)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 24 JULY 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (15 JULY - 23 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               
 15 Jul   3223 1111    7     
 16 Jul   1221 1212    5     
 17 Jul   2221 1110    4    
 18 Jul   1221 2011    4    
 19 Jul   1101 1011    2    
 20 Jul   1111 0011    2    
 21 Jul   1222 1111    4    
 22 Jul   1122 2233    8    
 23 Jul   2333 4322    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 to Unsettled conditions expected for the forecast period
with no recurrent coronal hole effects and no significant flare 
activity expected. 

2. FORECAST (24 JULY - 23 AUGUST)
Disturbed Periods: Active on 8 Aug.

Best Quiet Periods: 27 Jul to 7 Aug,  11 Aug to 17 Aug.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: NA

Central Australian Regions: NA

Southern Australian Regions:
 Disturbed Periods: 9 Aug to 11 Aug,   19 Aug.
 Best Quiet Periods: 25 Jul to 7 Aug,  13 Aug to 17 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 
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