[Ips-wgr] IPS Weekly Geo. Report (26 January 12) issued 0242 UT on 26 Jan 2012

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 26 JANUARY 2012, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (17 JANUARY - 25 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               
 17 Jan   3211 2212    6     
 18 Jan   1111 1112    3     
 19 Jan   1111 1212    4    
 20 Jan   2211 1112    4    
 21 Jan   2322 2223    9    A weak (10nT) impulse was observed in the IPS
magnetometer data at 0503UT on 21 Jan.
 22 Jan   1354 5353   27    A weak (29nT) impulse was observed in the IPS
magnetometer data at 0612UT on 22 Jan.
 23 Jan   4322 1112    9    
 24 Jan   3322 3543   18    A weak (38nT) impulse was observed in the IPS
magnetometer data at 1504UT on 24 Jan.
 25 Jan   2343 3212   12    

*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.


Coronal Mass Ejections associated with solar flare activity
impacted the Earth resulting in mild geomagnetic storms on 22 and 24 January.
Active to minor storm on 22 Jan, Active to minor storm on 24 Jan, with storm
periods at high latitudes otherwise mostly quiet to unsettled on other days.

2. FORECAST (26 JANUARY - 25 FEBRUARY)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 26 Jan to 28 Jan, and 17-21 Feb.

Best Quiet Periods: 29 Jan to 11 Feb.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 26 Jan to 11 Feb.

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 27 Jan to 11 Feb.

Southern Australian Regions:
 Disturbed Periods: 17 Feb to 24 Feb.
 Best Quiet Periods: 29 Jan to 11 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.

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