[Ips-wgr] IPS Weekly Geo. Report (26 July 12) issued 0324 UT on 26 Jul 2012

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 26 JULY 2012, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (17 JULY - 25 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               
 17 Jul   2342 1212    9  
 18 Jul   1110 1012    2  
 19 Jul   1211 1111    3  
 20 Jul   1423 2322   11  
 21 Jul   2221 0221    5  
 22 Jul   1223 2001    5  
 23 Jul   2211 2221    5  
 24 Jul   2211 3221    6  
 25 Jul   2122 1011    4  

*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 (26 JULY - 25 AUGUST)
Disturbed Periods: 
29 Jul,  11 Aug.

Best Quiet Periods: 
 26-27 Jul,  8-9 Aug,  14-15 Aug,  21 Aug.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 26 Jul to 4 Aug,  7-13 Aug,  17-19 Aug,  21 Aug.

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 26 Jul to 4 Aug,  7-9 Aug,  13 Aug,  17-19 Aug,  21 Aug.

Southern Australian Regions:
 Disturbed Periods: 28-29 Jul,  10-11 Aug.
 Best Quiet Periods: 26 Jul,  31 Jul to 4 Aug,  7-9 Aug,  13 Aug,  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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