[Ips-wgr] IPS Weekly Geo. Report (05 March 09)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 05 MARCH 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (24 FEBRUARY - 04 MARCH)
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               
 24 Feb   2222 1112    5     
 25 Feb   1212 1012    4     
 26 Feb   2211 1112    4    
 27 Feb   2223 3222    9    
 28 Feb   2321 1112    6    
 01 Mar   1221 1011    3    
 02 Mar   1211 1011    3    
 03 Mar   2232 2322    9    A weak (11nT) impulse was observed in the IPS
magnetometer data at 0603UT on 03 Mar.
 04 Mar   2222 2212    6    

*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 (05 MARCH - 04 APRIL)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
  14 Mar,   26 Mar.

Best Quiet Periods: 
 5 Mar to 13 Mar,  15 Mar to 25 Mar,  27 Mar to 31 Mar.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: 
Disturbed periods: None

Central Australian Regions: 
Disturbed periods: 14 Mar, 26-27 Mar

Southern Australian Regions: 
Disturbed periods: 13-14 Mar, 26-27 Mar
Best quiet periods: 05-12 Mar, 17-24 Mar, 29 Mar - 04 Apr

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
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