[Ips-wgr] SWS Weekly Geo. Report (05 July 18) issued 0341 UT on 05 Jul 2018 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 05 JULY 2018, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (26 JUNE - 04 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               
 26 Jun   3233 5332   17  
 27 Jun   1211 2112    4  
 28 Jun   1111 1211    3  
 29 Jun   1201 0000    1  
 30 Jun   0111 1001    1  
 01 Jul   0100 0000    0  
 02 Jul   0010 0000    0  
 03 Jul   0110 1200    2  
 04 Jul   0111 1010    1  

*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.


Active on 26 Jun.   Quiet to unsettled on other days.

2. FORECAST (05 JULY - 04 AUGUST)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 15 Jul,  20-24 Jul

Best Quiet Periods: 
 5-14 Jul,  16-19 Jul,  25 Jul - 04 Aug.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA

Central Australian Regions: 
 Moderately disturbed Periods: 23 Jul - 25 Jul
 Best Quiet Periods: 5-22 Jul,  25-Jul - 04 Aug.


Southern Australian Regions:
 Disturbed Periods: 23 Jul - 25 Jul
 Best Quiet Periods: 5-22 Jul,  25-Jul - 04 Aug.


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.

Space Weather Services              email: asfc at bom.gov.au
Bureau of Meteorology
PO Box 1386                         WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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