[Ips-wgr] IPS Weekly Geo. Report (14 May 09)

Regional Warning Centre rwc at ips.gov.au
Thu May 14 14:30:08 EST 2009


SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 14 MAY 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (05 MAY - 13 MAY)
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               
 05 May   1110 1101    2     
 06 May   2211 1122    5     
 07 May   2222 1222    6    
 08 May   3232 2122    8    
 09 May   1223 2211    6    
 10 May   1111 2011    3    
 11 May   1211 1211    4    
 12 May   1110 0111    2    
 13 May   1110 1201    2    

*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 (14 MAY - 13 JUNE)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
  15 May,  3 Jun to 4 Jun.

Best Quiet Periods: 
  14 May,  16 May to 2 Jun,  5 Jun to 9 Jun.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: NA

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 14 May to 29 May.

Southern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 14 May to 23 May,  25 May to 29 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
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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