[Ips-wgr] IPS Weekly Geo. Report (25 July 13) issued 0310 UT on 25 Jul 2013

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 25 JULY 2013, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (16 JULY - 24 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               
 16 Jul   1011 0011    1  
 17 Jul   1110 0011    1  
 18 Jul   0121 3432    9  
 19 Jul   2233 3322   11  
 20 Jul   2110 0001    2  
 21 Jul   1111 1111    3  
 22 Jul   1110 0102    2  
 23 Jul   1200 1011    2  
 24 Jul   1110 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 International Center for Space Weather 
Science and Education, Japan.


Quiet to unsettled conditions.

2. FORECAST (25 JULY - 24 AUGUST)
Disturbed Periods: 
26-27 Jul,  15-16 Aug

Best Quiet Periods: 
28 Jul - 14 Aug, 17-24 Aug

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 
 Disturbed Periods: None.

Central Australian Regions:
 Mildly Disturbed Periods: 26-27 Jul,  15-16 Aug 
 Disturbed Periods: None
 Best Quiet Periods: 28 Jul - 14 Aug, 17-24 Aug

Southern Australian Regions:
 Disturbed Periods: 26-27 Jul,  15-16 Aug 
 Best Quiet Periods: 28 Jul - 14 Aug, 17-24 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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