[Ips-wgr] IPS Weekly Geo. Report (22 February 07)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 22 FEBRUARY 2007, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (13 FEBRUARY - 21 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               
 13 Feb   3222 2334   12     
 14 Feb   3333 3333   15     
 15 Feb   3233 2222   10    
 16 Feb   2222 2222    7    
 17 Feb   3322 3313   11    
 18 Feb   2122 2212    6    
 19 Feb   2211 2212    5    
 20 Feb   2212 0212    5    
 21 Feb   1211 1101    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 Space Environment Research Center, Japan.


Quiet to unsettled conditions.

2. FORECAST (22 FEBRUARY - 24 MARCH)
Disturbed Periods: 
active 25 Feb to 27 Feb, active 12 Mar to 13 Mar.

Best Quiet Periods: 
 22 Feb to 24 Feb,  1 Mar to 4 Mar,  7 Mar to 11 Mar,   15 Mar,  17 Mar to
20 Mar.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: NA

Central Australian Regions:
 Disturbed Periods:  26 Feb,  8 Mar to 11 Mar.
 Best Quiet Periods: 22 Feb to 23 Feb,  1 Mar to 5 Mar,  15 Mar to 17 Mar.

Southern Australian Regions:
 Disturbed Periods:  26 Feb.
 Best Quiet Periods: 22 Feb to 23 Feb,  1 Mar to 7 Mar,  12 Mar to 17 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.

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