[Ips-wgr] IPS Weekly Geo. Report (23 February 12) issued 0151 UT on 23 Feb 2012

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 23 FEBRUARY 2012, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (14 FEBRUARY - 22 FEBRUARY)
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               
 14 Feb   2232 2223    9     
 15 Feb   2333 3333   14     
 16 Feb   2123 3112    7    
 17 Feb   1111 0012    2    
 18 Feb   1111 1123    5    
 19 Feb   4522 3223   16    
 20 Feb   3333 3333   15    
 21 Feb   2222 1212    6    
 22 Feb   3232 3122    9    
In the IPS magnetometer data for 22 Feb, a weak (12nT) impulse 
was observed at 0217UT.

*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.


Unsettled with isolated active periods on 15 February, 
Unsettled to minor storm on 19 Feb. Quiet to unsettled on other days.

2. FORECAST (23 FEBRUARY - 24 MARCH)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 23 Feb, 24 Feb,  2-3 Mar,  5-6 Mar,  11-13 Mar,  17-18 Mar.

Best Quiet Periods: 
 25 Feb to 1 Mar,  4 Mar,  7-10 Mar,  14-16 Mar,  19 Mar.

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

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 23 Feb to 11 Mar,  14-17 Mar,  20 Mar.

Southern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 24 Feb to 5 Mar,  8-11 Mar,  14-17 Mar,  20 Mar.


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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