[Ips-wgr] IPS Weekly Geo. Report (20 November 08)

[Regional Warning Centre]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 20 NOVEMBER 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (11 NOVEMBER - 19 NOVEMBER)
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               
 11 Nov   1111 0011    2     
 12 Nov   1111 1111    3     
 13 Nov   1111 0011    2    
 14 Nov   1111 0112    3    
 15 Nov   2210 0123    5    
 16 Nov   3322 3122    9    
 17 Nov   2211 0011    3    
 18 Nov   1110 0111    2    
 19 Nov   1211 1111    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 (20 NOVEMBER - 20 DECEMBER)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 25 Nov to 26 Nov,  4 Dec to 6 Dec,   13 Dec.

Best Quiet Periods: 
 20 Nov to 24 Nov,  27 Nov to 3 Dec,  7 Dec to 12 Dec,  14 Dec to 16 Dec.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 20 Nov to 7 Dec.

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 20 Nov to 24 Nov,  27 Nov to 7 Dec.

Southern Australian Regions:
 Disturbed Periods: 25 Nov to 26 Nov.
 Best Quiet Periods: 20 Nov to 23 Nov,  28 Nov to 7 Dec.

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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