[Ips-wgr] SWS Weekly Geo. Report (02 August 18) issued 0302 UT on 02 Aug 2018 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 02 AUGUST 2018, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (24 JULY - 01 AUGUST)
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               
 24 Jul   2442 2323   14  
 25 Jul   2221 1111    4  
 26 Jul   1110 1000    1  
 27 Jul   0100 0001    0  
 28 Jul   1112 1110    3  
 29 Jul   1112 0011    2  
 30 Jul   0100 2122    3  
 31 Jul   1110 0112    2  
 01 Aug   2111 1212    4  

*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 (02 AUGUST - 01 SEPTEMBER)
Disturbed Periods: 
No strong recurrent patterns, however minor to mild activity may be experienced
on:
 5-9 Aug, 20 Aug.

Best Quiet Periods: 
 2-3 Aug,  10-11 Aug,  14-16 Aug,  18-19 Aug,  22-28 Aug.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 
  No disturbed periods expected.

Central Australian Regions:
 Disturbed Periods: Mildly disturbed 7 Aug, 20-21 Aug.
 Best Quiet Periods: 2-6 Aug, 8-19 Aug, 22 Aug to 29 Aug.

Southern Australian Regions:
 Disturbed Periods: Disturbed on 7 Aug, 20-21 Aug
 Best Quiet Periods: 2-6 Aug, 8-19 Aug, 22 Aug to 29 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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