[Ips-wgr] IPS Weekly Geo. Report (23 May 13) issued 0430 UT on 23 May 2013

rwc rwc at ips.gov.au
Thu May 23 14:30:46 EST 2013


SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 23 MAY 2013, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (14 MAY - 22 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               
 14 May   3122 3211    7  
 15 May   3122 3211    7  
 16 May   2322 3322   10  
 17 May   2211 2231    6  
 18 May   3433 3132   14  
 19 May   2132 2213    8  
 20 May   2111 2221    5  
 21 May   1111 1012    3  
 22 May   2222 3222    8  

*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 International Center for Space Weather 
Science and Education, Japan.


Quiet to unsettled conditions.

2. FORECAST (23 MAY - 22 JUNE)
Disturbed Periods: 24-25 May.

Best Quiet Periods: 
 27 May - 9 Jun.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 26 May to 22 Jun.

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 26 May to 18 Jun.

Southern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 27 May to 1 Jun,  3-18 Jun.


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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