[Ips-wgr] IPS Weekly Geo. Report (12 February 09)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 12 FEBRUARY 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (03 FEBRUARY - 11 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               
 03 Feb   1121 0124    6     
 04 Feb   3223 3333   13     
 05 Feb   3212 2212    7    
 06 Feb   1111 0012    2    
 07 Feb   2211 2212    5    
 08 Feb   1210 0111    2    
 09 Feb   2110 1111    3    
 10 Feb   2210 1111    3    
 11 Feb   2121 1111    4    

*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 observed over the last 7 days.
Mostly Quiet conditions are expected for the forecast period,
with no recurrent coronal hole activity or returning active
regions expected.

2. FORECAST (12 FEBRUARY - 14 MARCH)
Disturbed Periods: No strong recurrent patterns, however mild 
activity may be experienced on: 15 Feb, 22 Feb.

Best Quiet Periods: 
 12 Feb to 14 Feb, 16 Feb to 21 Feb, 23 Feb to 10 Mar.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: 
 Disturbed Periods: None.
 Best Quiet Periods: 12 Feb to 28 Feb.

Central Australian Regions: 
 Disturbed Periods: None.
 Best Quiet Periods: 12 Feb to 28 Feb.

Southern Australian Regions: 
 Disturbed Periods: 24 Feb to 26 Feb. 
 Best Quiet Periods: 12 Feb to 23 Feb, 27 Feb to 28 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.

IPS Radio and Space Services        email: asfc at ips.gov.au
PO Box 1386                         WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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