[Ips-wgr] IPS Weekly Geo. Report (07 July 11)

rwc rwc at ips.gov.au
Thu Jul 7 13:03:16 EST 2011


SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 07 JULY 2011, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (28 JUNE - 06 JULY)
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               
 28 Jun   1200 1000    1     
 29 Jun   0100 0001    0     
 30 Jun   1210 0021    2    
 01 Jul   2233 2311    9    
 02 Jul   0110 0122    2    
 03 Jul   2211 0000    2    
 04 Jul   1111 2233    7    
 05 Jul   1321 1021    5    
 06 Jul   1222 1112    5    

*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 (07 JULY - 06 AUGUST)
Disturbed Periods: 
active on 20 Jul.

Best Quiet Periods: 
  7 Jul, 11-13 Jul, 15-17 Jul, 22-27 Jul.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: 
 Quiet

Central Australian Regions: 
 Mildly disturbed on 8-11 Jul, 20-24 Jul. 

Southern Australian Regions:
 Disturbed on 8-11 Jul, 20-24 Jul. 


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.

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