[Ips-wgr] IPS Weekly Geo. Report (29 March 07)

rwc rwc at ips.gov.au
Thu Mar 29 12:03:10 EST 2007


SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 29 MARCH 2007, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (20 MARCH - 28 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               
 20 Mar   1110 2211    3     
 21 Mar   1121 1101    3     
 22 Mar   1111 1211    3    
 23 Mar   2222 3322    9    
 24 Mar   3334 3112   12    
 25 Mar   3323 3112   10    
 26 Mar   2322 2322    9    
 27 Mar   3323 2222   10    
 28 Mar   3312 1111    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 expected for the next few days. 
Possible Active conditions due to a equatorial positioned coronal
hole that is moving into geoeffective position, in the latter
half of the forecasted week.

2. FORECAST (29 MARCH - 28 APRIL)
Disturbed Periods: 
active on 9 Apr.

Best Quiet Periods: 
 29 Mar to 31 Mar,  4 Apr to 6 Apr,  14 Apr to 18 Apr,   24 Apr.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: NA

Central Australian Regions:
 Disturbed Periods:  8 Apr.
 Best Quiet Periods: 29 Mar to 5 Apr,  14 Apr to 16 Apr.

Southern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 29 Mar to 6 Apr,  11 Apr to 19 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.

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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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