[Ips-wgr] IPS Weekly Geo. Report (18 July 13) issued 0250 UT on 18 Jul 2013

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 18 JULY 2013, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (09 JULY - 17 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               
 09 Jul   0111 2222    4  
 10 Jul   2333 4333   15  
 11 Jul   2353 2331   15  
 12 Jul   1221 2112    5  
 13 Jul   3321 1122    7  
 14 Jul   2225 4333   17  
 15 Jul   3333 3122   11  
 16 Jul   1011 0011    1  
 17 Jul   1110 0011    1  

*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.


Active on 14 Jul.   Quiet to unsettled on other days.

2. FORECAST (18 JULY - 17 AUGUST)
Disturbed Periods: 
19-21 Jul,  25 Jul,  7 Aug,  11 Aug,  13 Aug.

Best Quiet Periods: 
 23 Jul,  29-31 Jul,  3-4 Aug,  12 Aug.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 
 Disturbed periods: None.
 Best Quiet periods: 24 Jul to 12 Aug

Central Australian Regions:
 Disturbed periods: Mildly disturbed 19-22 Jul, 27-28 Jul
 Best Quiet periods: 28 Jul to 12 Aug

Southern Australian Regions:
 Disturbed Periods: 19-22 Jul, 27-28 Jul
 Best Quiet Periods: 28 Jul to 12 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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