[Ips-wgr] IPS Weekly Geo. Report (15 February 07)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 15 FEBRUARY 2007, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (06 FEBRUARY - 14 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               
 06 Feb   2222 1222    6     
 07 Feb   3233 3233   13     
 08 Feb   2332 2322   10    
 09 Feb   3322 1222    8    
 10 Feb   3211 1312    7    
 11 Feb   1111 0122    3    
 12 Feb   2113 3323   10    A weak (13nT) impulse was observed in 
 the IPS magnetometer data at 1013UT on 12 February.
 13 Feb   3222 2334   12    
 14 Feb   3333 3333   15    

Geomagnetic activity remained mostly at quiet to unsettled 
levels through this period. The effect of a coronal hole is 
keeping the activity level enhanced at the time of this report.

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.


Quiet to unsettled conditions.

2. FORECAST (15 FEBRUARY - 17 MARCH)
Disturbed Periods: 
Unsettled to active 25 to 27 February and from 12 to 14 March.

Best Quiet Periods: 
17 to 24 February, 28 February to 05 March, 07 to 11 March, and 
16 to 17 March. 

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: NA

Central Australian Regions:
 Disturbed Periods:  26 February,  08 to 09 March.
 Best Quiet Periods: 16 to 23 February,  01 to 05 March. 

Southern Australian Regions:
 Disturbed Periods:  26 February.
 Best Quiet Periods: 17 to 23 February,  01 to 07 March.

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.

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