[Ips-wgr] IPS Weekly Geo. Report (31 January 13) issued 0222 UT on 31 Jan 2013

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 31 JANUARY 2013, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (22 JANUARY - 30 JANUARY)
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               
 22 Jan   1111 0001    1  
 23 Jan   1221 1001    3  
 24 Jan   1110 0012    2  
 25 Jan   1222 1323    8  
 26 Jan   4333 3334   18  In the IPS magnetometer data for 26 
                          Jan, a weak (20nT) impulse was observed 
                          at 0540UT.
 27 Jan   2111 1211    4  
 28 Jan   2211 1212    5  
 29 Jan   2111 1112    4  
 30 Jan   1111 1112    3  

*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 26 Jan.   Quiet to unsettled on other days.

2. FORECAST (31 JANUARY - 02 MARCH)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 9-10 Feb,  13-16 Feb,  22-23 Feb.

Best Quiet Periods: 
 31 Jan to 8 Feb,  11-12 Feb,  17-21 Feb,  24-26 Feb.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: Mostly quiet

Central Australian Regions: Mostly quiet
Disturbed Periods: none
Best Quiet Periods: 31 Jan to 8-Feb, 11-26 Feb

Southern Australian Regions: Mostly quiet
Disturbed Periods: 10-Feb
Best Quiet Periods: 31 Jan to 8-Feb, 11-26 Feb


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.

IPS Radio and Space Services        email: asfc at ips.gov.au
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