[Ips-wgr] IPS Weekly Geo. Report (15 April 10)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 15 APRIL 2010, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (06 APRIL - 14 APRIL)
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 Apr   3345 4433   23     
 07 Apr   3244 3322   15     
 08 Apr   3222 2122    7    
 09 Apr   2212 2211    5    
 10 Apr   1111 1011    2    
 11 Apr               NA    
 12 Apr   4333 3321   14    
 13 Apr   1121 1102    3    
 14 Apr   1111 0124    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.


active on 6 Apr.
quiet to unsettled on other days.
N.B. No data available 11 Apr.

2. FORECAST (15 APRIL - 15 MAY)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 28 Apr to 30 Apr,  4 May to 5 May,  8 May to 9 May.

Best Quiet Periods: 
 15 Apr to 27 Apr,  1 May to 3 May,  6 May to 7 May,  10 May to 11 May.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 15 Apr to 3 May.

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 15 Apr to 3 May.

Southern Australian Regions:
 Disturbed Periods: 29 Apr to 30 Apr.
 Best Quiet Periods: 15 Apr to 27 Apr,  2 May to 3 May.

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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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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