[Ips-wgr] IPS Weekly Geo. Report (19 December 13) issued 0220 UT on 19 Dec 2013

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 19 DECEMBER 2013, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (10 DECEMBER - 18 DECEMBER)
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               
 10 Dec   2211 2111    4  
 11 Dec   1111 1001    2  
 12 Dec   1101 0001    1  
 13 Dec   1100 3212    4  In the IPS magnetometer data for 13 
                          Dec, a weak (14nT) impulse was observed 
                          at 1324UT.
 14 Dec   3332 2333   13  
 15 Dec   2221 3411    9  
 16 Dec   3221 1112    6  
 17 Dec   2100 0122    3  
 18 Dec   1111 0212    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.


Quiet to unsettled conditions.

2. FORECAST (19 DECEMBER - 18 JANUARY)
Disturbed Periods: 
4 Jan.

Best Quiet Periods: 
 20-27 Dec,  29 Dec to 3 Jan,  5-9 Jan,  11-14 Jan.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
(According to coronal hole recurrence. Coronal mass ejections also possible 
but only predictable on 1-2 day timespan.)

Northern Australian Regions: 
 Disturbed Periods: None

Central Australian Regions:
 Mildly Disturbed Periods: 4 Jan
 Best Quiet Periods: 19 Dec to 3 Jan, 5-14 Jan

Southern Australian Regions:
 Disturbed Periods: 4 Jan
 Best Quiet Periods: 19 Dec to 3 Jan,  5-14 Jan


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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