[Ips-wgr] SWS Weekly Geo. Report (30 August 18) issued 0129 UT on 30 Aug 2018 [SEC=UNCLASSIFIED]

rwc rwc at ips.gov.au
Thu Aug 30 11:29:32 EST 2018


SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 30 AUGUST 2018, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (21 AUGUST - 29 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               
 21 Aug   2122 1101    4  
 22 Aug   1210 2101    3  
 23 Aug   1110 2000    2  
 24 Aug   0122 3101    4  
 25 Aug   1222 2234   10  
 26 Aug   3376 4642   48  
 27 Aug   2334 3432   16  
 28 Aug   2223 3011    7  
 29 Aug   1211 1201    3  

*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 27 Aug. Minor storm on 26 Aug.  Quiet to unsettled on other days.

2. FORECAST (30 AUGUST - 29 SEPTEMBER)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 3 Sep,  7 Sep,  10-16 Sep,  21-24 Sep.

Best Quiet Periods: 
 31 Aug to 2 Sep,  4-6 Sep,  8-9 Sep,  17-20 Sep,  25-29 Sep.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 
 Disturbed Periods: None.
 Best Quiet Periods: 31 Aug to 12 Sep, 18-21 Sep.

Central Australian Regions: 
 Mildly disturbed Periods: 30 Aug, 14-17 Sep, 24-26 Sep.
 Best Quiet Periods: 31 Aug to 12 Sep, 18-21 Sep.

Southern Australian Regions:
 Disturbed Periods: 30 Aug, 14-17 Sep, 24-26 Sep.
 Best Quiet Periods: 1-3 Sep, 5-10 Sep, 20-21 Sep.


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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